Understanding the Fundamentals of Flying with Your Bicycle

The question of whether you can check a bicycle on a plane is a common one for cyclists planning trips. Fortunately, most major airlines permit passengers to transport bicycles as checked baggage. However, this privilege comes with specific rules and requirements that vary from one carrier to another. It’s not as simple as bringing a standard suitcase; a bicycle is considered oversized or special baggage. Airlines generally treat bikes as sporting equipment, which often means they must be partially disassembled and securely packed to prevent damage during transit. This preparation is key to ensuring your bike arrives at your destination in rideable condition.

Before you even pack your bike, the most critical step is to research the specific airline's policy. This involves understanding their guidelines on how the bicycle must be presented, what parts need to be removed or altered, any weight or dimension restrictions, and associated fees. Ignoring these details can lead to last-minute complications at the airport, potentially forcing you to pay excess baggage fees or, in the worst case, leave your bicycle behind. Proactive research empowers you to meet their requirements and avoid unexpected problems.

  • Airlines generally permit bicycles as checked luggage.
  • Bikes are considered special or oversized baggage.
  • Partial disassembly and secure packing are usually mandatory.
  • Researching airline-specific policies before travel is essential.
  • Fees and specific preparation rules vary by carrier.

What Constitutes a 'Checked Bicycle'?

When an airline refers to checking a bicycle, they mean transporting it as part of your checked luggage allowance, subject to their special handling procedures. Unlike standard luggage, a bicycle requires more robust packaging due to its size, shape, and the presence of delicate components like gears, derailleurs, and spokes. Airlines implement these rules to protect their equipment, their staff, and, most importantly, your bicycle. Without proper packing, a bike is highly susceptible to damage from impacts, crushing, or snagging during the complex logistics of air travel, from the loading dock to the baggage carousel.

The airline's perspective is that a bicycle, in its standard form, is not designed for the rigors of the baggage handling system. Therefore, they mandate that it be made safe for transport. This typically involves removing pedals, turning handlebars parallel to the frame, deflating tires, and often detaching the front wheel. Some airlines may also require the use of a dedicated bike box or a hard-shell travel case. Understanding this distinction between standard baggage and bicycle transport is the first step in planning your journey.

The airline's primary concern is safe handling and preventing damage, both to your bike and their infrastructure.

Why Airlines Have Specific Rules for Bikes

Airlines implement specific rules for transporting bicycles primarily for safety and liability reasons. Bicycles, particularly when disassembled and packed, can have sharp edges or protruding parts that could damage other luggage or injure baggage handlers if not properly secured. Furthermore, the complex network of conveyor belts, sorting machines, and aircraft cargo holds presents a challenging environment for an item as large and potentially fragile as a bicycle.

Airlines are also concerned about the potential for damage to the bicycle itself. While they aim to handle all baggage with care, the sheer volume and speed of operations mean that items can be subjected to impacts. By requiring specific packaging and preparation, airlines aim to mitigate the risk of damage claims. This often involves rules about the type of container used and how the bike is secured within it, ensuring that the frame bears the brunt of any impact rather than the delicate components.

Finally, these rules help standardize the process for baggage handlers. Knowing that bicycles are packed in a certain way, or contained within specific types of cases, allows ground staff to handle them more efficiently and safely. It’s a system designed to manage a non-standard item within a highly standardized operation.

Preparing Your Bicycle for Air Travel

Proper preparation is paramount when you intend to check a bicycle on a plane. The process involves more than just putting it in a box; it requires thoughtful disassembly, careful packing, and securing all components to prevent movement and damage. This preparation not only helps meet airline requirements but also significantly increases the chances of your bike arriving intact and ready to ride.

The first step is to decide on your packing method: a cardboard bike box or a dedicated bike travel case. Cardboard boxes are generally more affordable and readily available, often provided by bike shops. However, they offer less protection. Hard-shell or soft-shell bike cases provide superior protection against impacts and crushing but are considerably more expensive and bulkier to store and transport when empty. Your choice will depend on your budget, travel frequency, and how much protection you deem necessary for your specific bicycle.

The goal of preparation is to transform your bike into a compact, robust package that can withstand the rigors of air cargo handling.

Disassembly Steps for Airline Transport

Before packing, you'll need to perform several disassembly steps. The exact steps can vary slightly depending on your bike's make and model, but common requirements include:

  • Remove Pedals: Use a pedal wrench or Allen key (remember, the left pedal is reverse-threaded) to unscrew both pedals. Store them securely, perhaps in a small bag within the box or case.
  • Turn Handlebars: Loosen the stem bolts and rotate the handlebars so they are parallel to the frame or turned sideways. Some systems allow you to detach the stem entirely.
  • Remove Front Wheel: For most bikes, detach the front wheel. For bikes with disc brakes, it's crucial to prevent the brake levers from being squeezed while the wheel is out. You can use a pad spacer or a small piece of cardboard to keep the brake pads separated.
  • Deflate Tires: Release most of the air from both tires to prevent them from bursting due to pressure changes in the cargo hold.
  • Adjust Seatpost: Lower the seatpost to its lowest setting or remove it entirely, especially if it makes the bike too long for the box or case.
  • Protect Components: Wrap delicate parts like the rear derailleur, shifters, chainrings, and forks with bubble wrap, foam, or old rags. Secure them to the frame to prevent them from shifting.

Choosing the Right Packing Method: Box vs. Case

The decision between a cardboard bike box and a dedicated bike travel case is significant and impacts both protection and cost. Cardboard boxes are economical and widely available from local bike shops. They are suitable for less valuable bikes or for riders who travel infrequently and are willing to take extra care during packing to compensate for the box’s structural limitations. You’ll need to reinforce the box, especially at the ends and corners, with extra cardboard and strong tape.

Bike travel cases, whether hardshell or softshell, offer substantially better protection. Hardshell cases are typically made of durable plastic and are designed to withstand significant impact, making them ideal for expensive or high-performance bicycles. Softshell cases, often made from heavy-duty nylon with internal padding and frame, provide a good balance between protection and weight, and they can sometimes be more compact when empty. While they represent a larger upfront investment, they are often reusable for many trips, potentially making them more cost-effective for frequent travelers. They also tend to be easier to handle and maneuver than a bulky cardboard box.

Secure all loose components like pedals and tools in a separate, sturdy bag that can be attached to the frame or placed inside the box/case, ensuring they don't rattle around or get lost.

Packing Your Bike Securely

Once disassembled, the meticulous process of packing begins. Lay down a layer of protective material at the bottom of your box or case. Place the frame (often the heaviest part) in the center. If using a box, you might need to cut it down or assemble two boxes to fit longer frames. Arrange the wheels, often placed on either side of the frame, ensuring spokes are protected. If they have quick-release skewers, you might want to remove the skewers and place them in your bag of small parts.

Use foam padding, bubble wrap, or old clothing to fill any gaps and cushion all components. Pay special attention to the rear derailleur and fork, as these are particularly vulnerable. Ensure handlebars, cranks, and any other protruding parts are secured flush against the frame or padded thoroughly. Finally, close the box or case and secure it. For cardboard boxes, use strong packing tape, reinforcing all seams and edges. For cases, ensure all latches or zippers are securely fastened. Some airlines may require you to sign a waiver for bikes packed in cardboard boxes, acknowledging the inherent risk of damage.

Navigating Airline Policies and Fees

Understanding airline policies and associated fees is a critical part of the process when you want to check a bicycle on a plane. Each airline has its own set of regulations regarding the dimensions, weight, packaging, and pricing for sporting equipment like bicycles. Failing to comply with these specific rules can result in unexpected charges or even the refusal of your bicycle at the check-in counter.

The first step is always to consult the airline’s official website or contact their customer service directly. Look for sections on “Baggage Information,” “Special Baggage,” or “Sporting Equipment.” These pages will detail their specific requirements, including whether your bike needs to be in a box or case, maximum allowable dimensions, and weight limits. Many airlines categorize bicycles as oversized baggage, which means they often incur an additional fee beyond the standard checked baggage allowance.

Always verify your airline's specific policy on bicycles before arriving at the airport.

Typical Airline Requirements for Bikes

Airlines typically have several common requirements for transporting bicycles:

  • Packaging: Most airlines mandate that bicycles be packed in a sturdy container. This can be a cardboard bicycle box, a hard-shell bike case, or a soft-shell bike bag. Some may allow them to be transported without a box, but this is rare and usually involves signing a liability waiver.
  • Disassembly: Pedals must usually be removed, and handlebars turned parallel to the frame or detached. The front wheel is often required to be removed and secured alongside the frame. Tires should be deflated.
  • Weight Limits: Standard checked baggage weight limits (often around 50 lbs / 23 kg) may apply, but some airlines have higher limits for sporting equipment, while others may impose a lower limit for bikes specifically. Exceeding the weight limit will incur overweight baggage fees.
  • Dimension Limits: There are usually maximum linear dimensions (length + width + height) for checked baggage. Bicycles, even packed, often exceed these standard limits, classifying them as oversized baggage.

It's essential to check these specific requirements for your chosen airline, as they can differ significantly. For instance, some airlines might allow a bike and its accessories (like a helmet and pump) in the same box or case, while others require them to be packed separately.

Understanding Associated Fees

Fees for checking a bicycle on a plane can vary widely. Most airlines will charge a fee for transporting a bicycle, often classifying it as a piece of special baggage. This fee can range from a standard checked bag fee to a higher, specific fee for sporting equipment, or even an oversized baggage fee. For example, some airlines might charge a flat rate like $150-$250 each way for a bicycle, while others might charge based on whether it falls within their standard baggage allowances or exceeds them.

If your bicycle exceeds the airline's weight limit (e.g., over 50 lbs or 23 kg), you will likely face additional overweight baggage fees on top of any special handling fees. Similarly, if its dimensions exceed the airline's maximum size restrictions for any baggage, you will incur oversized baggage fees. These fees can add up quickly, so it’s important to factor them into your travel budget. Some premium credit cards or airline loyalty programs might offer benefits that can offset these costs, such as a certain number of free checked bags or waivers for baggage fees.

Always confirm the exact fees with the airline before your travel date, as prices are subject to change.

What to Do if Your Bike Exceeds Limits

If your packed bicycle exceeds the airline's standard weight or dimension limits for checked baggage, you will likely be subject to additional fees. The first step is to know these limits precisely from the airline's policy. If you are slightly over, you might be able to rearrange items, perhaps moving some accessories or heavier components into your carry-on baggage if allowed and practical, though this is often not feasible for substantial weight differences.

If significant excess weight or dimensions are unavoidable, be prepared for the associated fees. These can sometimes be substantial. In such cases, it might be worth considering alternative shipping methods for your bike, such as a specialized courier service, which could potentially be more cost-effective or offer better protection, though it requires shipping well in advance of your flight. Some travelers also choose to rent a bike at their destination if the cost and hassle of flying with their own become prohibitive. Always discuss options with the airline agent at the check-in counter; sometimes, they may have discretion or offer specific solutions for borderline cases, but it’s best not to rely on this.

At the Airport: Check-in and Handling

The final stage of flying with your bicycle involves the check-in process at the airport and understanding how your bike will be handled. Presenting your packed bicycle correctly and knowing what to expect can make the process smoother and less stressful. Airlines have specific procedures for large or irregularly shaped items like bike cases and boxes.

When you arrive at the check-in counter, inform the agent that you have a bicycle to check. They will likely direct you to a special oversized baggage drop-off area or handle it directly at their counter, depending on airport procedures and the size of your package. Be prepared to present your identification and boarding pass, and to answer any questions about the contents and preparation of your bike.

Having all your documentation and your bike packed according to airline specifications will expedite the check-in process.

The Check-in Counter Experience

At the check-in counter, the airline representative will verify your booking and ask about your baggage. When you declare your bicycle, they will check if it’s properly packed according to their policy. They will weigh the bike (if they have a scale accessible) and measure its dimensions if they are in doubt. If everything meets their requirements, they will tag your bicycle for its destination. You may be asked to sign a liability waiver, especially if you used a cardboard box or if the bike has components that are particularly exposed.

The waiver essentially acknowledges that while the airline will take care of your bike, they are not liable for damage caused by inherent weaknesses in the packaging or the item itself, or for minor cosmetic damage like scratches. It’s important to read and understand what you are signing. Once tagged, the airline staff will take your bicycle to be loaded onto the plane. Depending on the airport, this might be done directly from the counter, or you might be directed to a separate oversized baggage drop-off point.

Handling of Oversized Baggage

Bicycles, whether in boxes or cases, are considered oversized baggage and are handled differently from standard suitcases. They are often too large or bulky to fit on regular conveyor belts and may require special equipment for loading and unloading. This can include larger baggage carts or even forklifts. The staff handling oversized items are trained to manage these larger pieces, but the process can sometimes be slower.

When your flight arrives at its destination, your bicycle will typically be delivered to a designated oversized baggage claim area, which might be separate from the main baggage carousel. This area is usually located near the regular baggage claim, often with signs indicating where to collect large items. It’s advisable to locate this area before you even head to the main carousels, as sometimes your bike might arrive before your regular checked luggage. Keep your baggage claim tag handy, as you will need it to retrieve your bicycle.

What to Do Upon Arrival

Upon arrival at your destination, proceed directly to the oversized baggage claim area. Locate your bicycle using its baggage tag. Before leaving the airport, it is crucial to inspect your bicycle for any visible damage. Check the box or case for punctures, tears, or crushed areas, and then inspect the bike itself for bent components, damaged wheels, or broken parts. If you notice any damage, you must report it to the airline's baggage services desk immediately, before leaving the airport premises. Take clear photos of the damage and the packaging.

You will need to file a formal damage report (Property Irregularity Report or PIR) with the airline. This report is essential for any potential claim. Keep all your travel documents, including your boarding pass, baggage claim tags, and the PIR. The airline will then guide you through their claims process, which usually involves providing further documentation and evidence of the damage. Prompt reporting and thorough documentation are key to a successful claim should your bicycle sustain damage during transit.

Alternatives to Flying with Your Own Bicycle

While checking a bicycle on a plane is certainly feasible, it's not always the most convenient or cost-effective option. For many travelers, exploring alternatives can lead to a less complicated and potentially more enjoyable trip. These alternatives often bypass the challenges associated with packing, airline fees, and the risk of damage.

The most common and often simplest alternative is renting a bicycle at your destination. Most popular tourist and cycling destinations have rental shops offering a range of bikes, from road bikes and mountain bikes to city cruisers. This eliminates all the hassle of packing, checking in, and worrying about your bike's condition upon arrival. You simply pick up a bike suitable for your needs and return it before you depart.

Renting a bike at your destination can save you considerable time, money, and stress.

Renting a Bicycle at Your Destination

Renting a bike locally is an excellent option for many travelers. Rental shops are prevalent in cities, tourist areas, and popular cycling routes. They typically offer a variety of bicycles to suit different riding styles and terrains. You can often reserve a specific type of bike in advance, ensuring availability upon your arrival. This method allows you to travel light, carrying only your cycling apparel and essentials in your regular luggage.

When renting, inquire about the quality and condition of the bikes. Many rental services offer well-maintained, modern bicycles. It's also wise to ask about what’s included – often, helmets, locks, and basic repair kits are provided. Compare rental rates from different providers in the area to find the best value. This approach is particularly beneficial for shorter trips or for travelers who don't own a high-end bicycle and are content with a quality rental for their vacation.

Using Specialized Bike Shipping Services

For those who absolutely must travel with their own bicycle, especially for competitive events or long-distance touring, specialized bicycle shipping services offer a viable alternative to airline transport. Companies exist that focus solely on shipping bikes safely and efficiently to destinations worldwide. These services often provide robust packaging, insurance, and direct delivery to your hotel, race venue, or home.

The process typically involves ordering a shipping box or case from the company, packing your bike according to their instructions, and arranging for pickup or drop-off. The bike is then transported via ground or air freight and delivered to your specified address. While this also involves cost and planning, it can sometimes be more reliable and less prone to the issues associated with airline baggage handling. It's worth comparing the total cost (shipping fees, insurance, packaging) against the airline’s fees and potential risks. This method is ideal if you want to ensure your specific bike is available at your destination without the direct stress of carrying it through airports.

Considering Bike-Sharing Programs

In urban areas, bike-sharing programs offer a convenient way to get around for short trips or to explore a city. These programs typically involve docking stations located throughout the city where you can pick up and drop off bikes. They are usually accessed via a mobile app and operate on a pay-per-ride or subscription basis. While not suitable for long-distance cycling tours or serious training, they are perfect for casual exploration, commuting within a city, or covering short distances between attractions.

The advantage of bike-sharing is spontaneity and ease of use. You don't need to worry about booking in advance or returning the bike to the same location. However, the bikes themselves are often standardized and may not be ideal for performance cycling, and availability can be an issue during peak times or in less popular areas. They are best suited for urban environments where the primary goal is short-distance, casual mobility.

Safety and Security of Your Bicycle in Transit

Ensuring the safety and security of your bicycle when you check it on a plane is a primary concern for any cyclist. The journey from check-in to baggage claim can expose your bike to various risks, from accidental damage to potential theft. Therefore, adopting best practices for packing and understanding airline protocols is essential.

The most direct way to enhance safety is through meticulous packing. A well-packed bike is less likely to sustain damage from impacts or shifts during transit. This involves using appropriate protective materials, securing all components, and choosing a robust container. Beyond physical protection, understanding the airline's liability and reporting procedures for damage or loss is crucial for security.

Invest time in packing your bicycle thoroughly; it's the single most effective step to protect it.

Mitigating Damage Risks

Damage during air travel can occur from impacts, crushing, or snagging. To mitigate these risks, focus on a few key areas:

  • Frame Protection: Use foam padding, bubble wrap, or even old rags to protect the frame, especially at contact points and vulnerable areas like the top tube and chainstays.
  • Component Security: Ensure that moving parts like the rear derailleur, shifters, and brake levers are either removed and packed separately or securely padded and braced against the frame. Derailleur hangers are particularly fragile.
  • Wheel Protection: Remove wheels and pack them flat against the frame. Use cardboard inserts between the spokes and frame, and ensure the tires are deflated.
  • Container Choice: A hard-shell case offers the best protection against crushing and impacts. If using a cardboard box, reinforce all edges and corners with extra cardboard and heavy-duty tape.

Some travelers also recommend removing the disc brake rotors if possible, as they can be easily bent. If not, ensure the brake pads are protected from contamination and the levers are secured so they don't get accidentally squeezed without a spacer. The goal is to make the bike as compact and solid as possible, with no loose parts that can move and cause damage.

Airline Liability and Waivers

When you check a bicycle on a plane, especially if it's in a cardboard box, airlines often require you to sign a liability waiver. This document typically states that the airline is not responsible for damage that arises from the inherent nature of the item being transported. For bicycles, this often includes damage to components like derailleurs, shifters, wheels, or pedals, particularly if they are not adequately protected or are too exposed.

It’s important to understand that signing a waiver doesn't mean the airline is completely absolved of responsibility for gross negligence. However, it does shift the burden of proof. If damage occurs, you may need to demonstrate that the airline's handling was negligent. For this reason, using a sturdy, purpose-built bike travel case can sometimes negate the need for a waiver or strengthen your position if damage does occur, as it shows you took reasonable steps to protect your equipment.

What to Do if Your Bike is Lost or Stolen

While rare, the loss or theft of checked baggage, including bicycles, can happen. If you arrive at your destination and your bicycle is not on the oversized baggage carousel, report it immediately to the airline's baggage services desk. You will need to file a Property Irregularity Report (PIR). Provide a detailed description of your bicycle, its case or box, and your baggage tag number.

Keep all documentation, including your boarding pass, baggage claim tags, and the PIR. The airline will initiate a search for your missing luggage. If the bike is not found within a specified period (which varies by airline, often a few days), it will be declared lost. At this point, you can initiate a claim for compensation. The amount of compensation is typically limited by international agreements (like the Montreal Convention) and the airline's own conditions of carriage. If you have travel insurance, check your policy for coverage related to lost or stolen baggage, as it may offer more comprehensive protection than the airline's liability.

Maximizing Your Cycling Experience on Arrival

The ultimate goal of checking a bicycle on a plane is to arrive at your destination ready to ride and enjoy your cycling adventure. Ensuring your bike is in excellent condition upon arrival is as important as the packing process itself. This section focuses on the immediate steps to take once you retrieve your bike.

Upon collecting your bicycle, the first and most crucial step is a thorough inspection. While you've likely done a preliminary check at the airport, a more detailed examination is warranted before you start assembling or riding. This is your opportunity to catch any damage that might have been missed or that occurred after your initial airport inspection.

A quick, thorough post-arrival inspection can save you from major mechanical issues or safety hazards.

Immediate Post-Arrival Inspection

Once you have your bike, find a safe, well-lit area to unpack and inspect it. Start by examining the exterior of the box or case for any signs of significant impact. Then, carefully unpack the bike and check for:

  • Frame Integrity: Look for any cracks, dents, or bends in the frame, fork, or handlebars.
  • Wheels: Spin each wheel to check for true (wobble) and listen for any strange noises. Inspect the rims and spokes for damage.
  • Drivetrain: Check the chain, crankset, and cassette for bent teeth or damage. Gently shift through the gears to ensure they are functioning.
  • Brakes: Inspect brake calipers and levers. Squeeze the brake levers to ensure they engage properly and release smoothly.
  • Other Components: Check the seatpost, saddle, pedals (if reattached), and any accessories for damage.

If you find any damage, document it immediately with clear photographs and report it to the airline baggage services before leaving the airport, as previously discussed. If everything appears intact, proceed to reassembly.

Reassembly and Tune-Up

Reassembling your bicycle is the next step. This typically involves reattaching the front wheel, handlebars, seatpost, and pedals. Use a torque wrench if possible to tighten bolts to the manufacturer's specifications, especially for critical components like the stem and seatpost. Re-inflate your tires to the recommended pressure, which is usually printed on the sidewall of the tire.

After reassembly, it's highly recommended to perform a basic tune-up. This includes checking tire pressure again, ensuring brakes are properly adjusted and functioning effectively, and lubricating the chain if necessary. If you're not comfortable performing these adjustments yourself, or if you suspect any damage that requires professional attention, it's wise to take your bike to a local bike shop for a safety check and tune-up. Many shops offer a quick "travel bike check" service for this purpose.

Carry a multi-tool, tire pump, and a spare tube in your carry-on luggage. This allows for minor adjustments or repairs at your destination before you even retrieve your bike from baggage claim.

Ensuring a Smooth Cycling Holiday

To ensure your cycling holiday is as enjoyable as possible, consider the terrain and type of riding you plan to do at your destination. If you’ve rented a bike, ensure it’s suitable for your planned activities. If you’ve flown with your own bike, double-check that it’s fully tuned and ready for the specific routes you intend to take.

Familiarize yourself with local cycling laws and etiquette. Understand road conditions, potential hazards, and recommended routes. Having a basic repair kit, spare parts (like a derailleur hanger if you have a spare and know how to change it), and a map or GPS device can also significantly enhance your experience and preparedness. Ultimately, a little extra effort in preparation and inspection goes a long way in guaranteeing a fantastic cycling adventure upon arrival.

Frequently Asked Questions About Flying with Bikes

Here are answers to some common questions travelers have when planning to check a bicycle on a plane.

Can I bring my bicycle on a plane without a box?

Generally, airlines require bicycles to be packed in a protective container like a cardboard box or a hard-shell case. Transporting a bike without a box is rare and usually requires signing a liability waiver, acknowledging the increased risk of damage. Always check your airline's specific policy.

How much does it cost to fly with a bicycle?

The cost varies by airline. Most charge a special baggage fee, which can range from a standard checked bag fee to a higher, fixed rate for sporting equipment, often between $150-$250 each way. Additional fees apply if the bike exceeds weight or dimension limits.

What are the typical weight and size limits for checking a bike?

Standard weight limits are often around 50 lbs (23 kg), but some airlines allow up to 70 lbs (32 kg) for bikes. Dimension limits are also variable, but most bikes packed will exceed standard carry-on or even checked bag dimensions, leading to oversized baggage fees.

Do I need to remove the pedals and handlebars?

Yes, most airlines require pedals to be removed and handlebars turned parallel to the frame or detached. Tires should also be deflated. These steps are crucial for safe packing and to prevent damage to the bike and other luggage.

What happens if my bike is damaged during the flight?

If your bike is damaged, report it to the airline's baggage services desk immediately before leaving the airport. File a Property Irregularity Report (PIR) and document the damage with photos. You can then file a claim with the airline or your travel insurance.

Is it cheaper to rent a bike at my destination than to fly with mine?

Often, yes. The combined cost of airline fees, potential overweight/oversized charges, and packaging materials can exceed rental fees, especially for shorter trips. Renting also saves you the hassle of packing and transport.

Can I pack other items in my bike box or case?

Some airlines allow you to pack soft items like helmets, cycling shoes, or clothing within the bike box or case to help cushion the bike and save space. However, avoid packing heavy or fragile items that could shift and cause damage. Always check the airline's policy on this.