Last Updated on July 31, 2026 by Daniel Globe
American Airlines allows most passengers to bring one carry-on bag and one personal item, but both must meet the airline’s size and storage rules. Measuring your luggage before leaving home is the safest approach because wheels, handles, exterior pockets, and expanded sections all count toward the bag’s dimensions.
Quick Answer
American Airlines allows one carry-on bag up to 22 x 14 x 9 inches, including wheels and handles, plus one personal item up to 18 x 14 x 8 inches. The airline can require a bag to fit its airport sizer, but it does not publish a general weight limit for standard carry-on bags.
Key Takeaways
- Your carry-on cannot exceed 22 x 14 x 9 inches, including its handles and wheels.
- Your personal item cannot exceed 18 x 14 x 8 inches and must fit under the seat in front of you.
- Basic Economy passengers receive the same one-carry-on and one-personal-item allowance.
- American does not publish a general weight limit for ordinary carry-on bags on its current U.S. policy page.
- A bag may be checked if it is oversized, cannot be stowed safely, or cannot fit because overhead bins are full.
- American Eagle regional flights may require larger carry-ons to be valeted at the gate at no charge.
At a Glance
| Carry-On Bag | Maximum 22 x 14 x 9 inches, including handles and wheels |
| Personal Item | Maximum 18 x 14 x 8 inches and must fit under the seat |
| Standard Weight Limit | No general carry-on weight limit is published on American’s current U.S. policy page |
| Basic Economy | One carry-on bag plus one personal item |
| Standard Carry-On Cost | Included with the ticket when the bag meets the allowance |
American Airlines Carry-On Size and Allowance
According to the official American Airlines carry-on policy, passengers may bring one carry-on item in addition to one personal item. This allowance applies in all cabins, including Basic Economy.
Carry-On Bag Dimensions
Your standard carry-on bag cannot exceed 22 inches high by 14 inches long by 9 inches wide, or approximately 56 x 36 x 23 centimeters. Handles, wheels, protective feet, straps, and other permanent attachments must remain within the limit.
The bag must also fit in the overhead bin, under the seat in front of you, or in the airport baggage sizer. A suitcase advertised as a “22-inch carry-on” is not automatically compliant because some manufacturers exclude the wheels or handle housing from the listed measurement.
Personal Item Guidelines
A personal item can be a small backpack, purse, laptop bag, briefcase, camera bag, or similarly sized item. It cannot exceed 18 x 14 x 8 inches, or 45 x 35 x 20 centimeters, and it must fit fully under the seat in front of you.
A backpack can therefore be either a personal item or a carry-on bag. Its category depends on its packed size and where it is stored, not what the manufacturer calls it.
Does American Airlines Have a Carry-On Weight Limit?
American Airlines does not publish a general weight limit for an ordinary carry-on bag or personal item on its current U.S. carry-on policy page. Size and safe storage are the main requirements.
Do not treat this as permission to pack a bag that is too heavy to control. You should be able to lift and position the bag safely without risking injury to yourself or other passengers. Special categories, including pets and some equipment, can have separate weight rules.
Soft-Sided Garment Bags
A soft-sided garment bag may be used as your carry-on item when its total length, width, and height do not exceed 51 linear inches, or 130 centimeters. It still counts as the one carry-on item in your allowance.
Note: Meeting the published dimensions does not guarantee overhead-bin space. A compliant bag may still be checked when the aircraft has small bins or the available bin space is already full.
How American Airlines Measures Carry-On Size
American’s policy says that a carry-on must fit in the airport sizer. The complete packed bag matters, not the dimensions of its empty frame.
- Measure the height: Place the bag upright and measure from the floor to its highest point, including wheels and handles.
- Measure the width: Measure across the widest side, including side handles or bulging pockets.
- Measure the depth: Measure from the front to the back at the thickest point.
- Check expanded sections: If an expansion zipper is open, measure the bag while expanded.
- Pack before measuring: Soft bags can bulge after clothing, shoes, and electronics are added.
- Compare every dimension: A bag must meet each limit. A narrower bag does not receive extra height or depth.
Pro Tip: Leave about half an inch of spare room in each dimension. This reduces the risk that an overpacked soft bag, protruding wheel, or exterior pocket prevents the bag from fitting comfortably in the sizer.
What Happens If Your Carry-On Is Too Large?
If your bag exceeds the carry-on dimensions or cannot be stowed safely, American may require you to check it. You may need to consolidate loose items into your personal item before the bag is accepted.
| Situation | Likely Outcome |
| Bag exceeds 22 x 14 x 9 inches | The bag may need to be checked, and applicable checked-bag fees may apply. |
| Bag meets the limit but bins are full | American may gate-check the bag because of available space rather than a size violation. |
| American Eagle regional flight | A carry-on larger than personal-item dimensions may be valeted at the gate for free and returned on the jet bridge. |
| Checked bag also exceeds checked limits | Additional overweight or oversize charges may apply. |
American does not publish a universal $100 oversized-carry-on fee. Charges depend on your fare, route, ticket-issuance date, and the bag’s checked size and weight.
For example, under the American Airlines fee schedule for many tickets issued on or after May 18, 2026, a first checked bag within or between the United States costs $50 at the airport for Main Cabin or $55 for Basic Economy. Online prepayment can reduce those amounts by $5. Other destinations and premium-cabin allowances have different prices, so check the current fee page for your itinerary.
Warning: Before surrendering a bag for gate checking or valet service, remove medication, passports, keys, computers, valuables, spare lithium batteries, e-cigarettes, and any other item that cannot travel in checked baggage.
Tips for Meeting American Airlines Carry-On Requirements
A few simple checks can reduce the chance of being stopped at the airport:
- Choose a suitcase whose stated exterior measurements include the wheels and handle housing.
- Measure the bag again after packing it.
- Keep expansion zippers closed unless the expanded bag still meets every limit.
- Place heavy, essential, or valuable items in the personal item you will keep with you.
- Avoid attaching bulky pillows, shoes, shopping bags, or jackets to the outside of the suitcase.
- Make sure you can consolidate small loose items into your two permitted pieces before boarding.
- Label the carry-on with your name and contact information in case it must be checked.
- Review the operating airline’s policy when an American flight number is operated by a partner airline.
Packing cubes can improve organization, but they do not reduce the outside dimensions of a hard-sided suitcase. Compression bags can also make a soft bag bulge in one area, so always measure the final packed shape.
For additional organizer and accessory ideas, see this guide to the best travel gifts for women.
Exceptions and Special Items
Medical and Mobility Devices
Mobility and medical devices do not count toward American’s standard carry-on limit. Examples include canes, walkers, CPAP machines, and collapsible assistive equipment that can fit in an overhead bin or under a seat.
If a device does not fit in the cabin, space is limited, or it is not required during the flight, American may need to check it. Review the airline’s mobility and medical-device guidance and request assistance as early as possible when special arrangements are needed.
Traveling With Infants and Children
One diaper bag per child does not count as the adult passenger’s carry-on or personal item. A breast pump and a small, soft-sided cooler of breast milk are also exempt from the normal allowance.
Each ticketed passenger traveling with a child may check one stroller and one car seat free of charge. Depending on the item, it may be checked at the ticket counter or gate. Playpens, cribs, pack-and-plays, and wagons without built-in child restraints can count as regular baggage and may incur fees.
Check the current American Airlines child-travel policy before departure because the handling method depends on the type and size of equipment.
Musical Instruments
A musical instrument generally counts as your carry-on item. It must fit safely in an overhead bin, under the seat, or in an available cabin closet. An instrument is not automatically exempt merely because it is fragile or unusually shaped.
For an instrument that cannot be stored in the normal cabin spaces, you may need to check it or purchase an additional seat under American’s cabin-baggage procedures.
Carry-On Pets
A pet carrier brought into the cabin counts as a carry-on item. When traveling with a carry-on pet, American permits only one additional item: either a personal item or a standard carry-on bag, not both.
Pet-carrier dimensions and restrictions vary by aircraft. A carrier must fit under the seat, and a reservation and pet fee are required. Review the airline’s current pet rules before booking.
When to Contact American Airlines
Contact American before travel when you are carrying an unusually large medical device, mobility equipment, a musical instrument requiring a seat, a pet, or any item that may require special cabin storage. Advance communication is especially useful when your itinerary includes an American Eagle aircraft or a partner airline.
Carry-On Security and Packing Restrictions
Meeting the airline’s dimensions does not mean every item inside the bag is permitted through security or onboard the aircraft.
- Liquids, aerosols, and gels: Under the TSA 3-1-1 rule, ordinary carry-on liquid containers must hold no more than 3.4 ounces or 100 milliliters each and fit in one quart-size bag.
- Spare lithium batteries: Keep spare batteries and power banks in the cabin rather than in checked baggage, and protect exposed terminals.
- E-cigarettes and vaping devices: These must remain in carry-on baggage and cannot be used or charged onboard.
- Smart luggage: A smart bag must have a removable battery if there is a chance the bag will be checked or valeted.
- Sharp or hazardous items: Review TSA and American restrictions before packing tools, sporting items, chemicals, weapons, or other controlled articles.
Note: Medication, medically necessary liquids, breast milk, and infant food may have screening exceptions. Tell the TSA officer about these items before screening and allow extra time for inspection.
How American Airlines Enforces Its Carry-On Policy
American’s official rule is objective: a standard carry-on must remain within 22 x 14 x 9 inches, include all handles and wheels within those measurements, and fit the airport sizer or an approved storage space.
That does not mean every bag is measured on every trip. Staff may pay closer attention to a suitcase that appears oversized, is visibly expanded, has items attached to it, cannot pass through the aisle, or cannot fit in the available storage area.
Aircraft type also matters. A bag that fits easily in the overhead bin of a large mainline aircraft may need valet handling on an American Eagle regional jet. Full flights can also lead to gate checking after overhead space has been used.
American’s size rule is firm, but the amount of visible enforcement can vary because aircraft, airport procedures, and available bin space are not identical on every flight.
Common Misconceptions About American Airlines Carry-Ons
“American Has a Standard Carry-On Weight Limit”
American’s current general carry-on page does not publish one. The ordinary policy is based on dimensions and safe storage, although special items may have separate limits.
“Basic Economy Only Includes a Personal Item”
This is outdated. Basic Economy currently includes one standard carry-on bag and one personal item.
“Being Slightly Over the Limit Is Always Fine”
No tolerance is guaranteed. A rigid wheel housing or overfilled pocket can prevent the bag from fitting the airport sizer even when the difference appears small.
“A Compliant Bag Is Guaranteed Overhead Space”
Meeting the dimensions makes the bag eligible to be carried on, but it does not reserve bin space. The bag may still be checked because of aircraft limitations or a full cabin.
“Musical Instruments Never Count Toward the Allowance”
A musical instrument normally counts as the passenger’s carry-on item unless a separate seat or another approved arrangement is used.
American Airlines Carry-On Size Compared With Other Airlines
| Airline | Maximum Standard Carry-On | Comparison |
| American Airlines | 22 x 14 x 9 inches | Standard size used by several major U.S. airlines |
| Delta Air Lines | 22 x 14 x 9 inches | Same maximum dimensions as American |
| Southwest Airlines | 24 x 16 x 10 inches | Allows a larger standard carry-on than American |
Do not assume that a bag accepted by another airline will qualify on American. Always check the operating airline’s current policy, especially when the itinerary includes a codeshare or separate tickets.
Why Passenger Experiences Can Vary
Some passengers board without having their bags measured, while others are asked to use a sizer or check a bag. This difference does not change the published dimensions.
Several factors can affect what happens at the airport:
- How clearly the bag appears to exceed the limit
- Whether pockets or expansion panels are bulging
- The aircraft’s overhead-bin dimensions
- How much bin space remains when the passenger boards
- Whether the flight is operated by American, American Eagle, or a partner
- Whether the passenger is carrying more than two counted cabin items
The safest strategy is to meet the published measurements rather than relying on the possibility that a slightly oversized bag will not be checked.
Preflight Carry-On Checklist
- Measure the fully packed carry-on, including wheels and handles.
- Confirm that the personal item remains within 18 x 14 x 8 inches.
- Close expansion zippers and remove bulky exterior attachments.
- Review TSA liquid and restricted-item rules.
- Keep medication, documents, batteries, electronics, and valuables in the personal item.
- Check whether any segment is operated by American Eagle or a partner airline.
- Review special rules for children’s equipment, medical devices, pets, or instruments.
- Attach a name label in case the carry-on must be checked.
- Check American’s current fee page rather than relying on an old flat-fee estimate.
Conclusion: Is American Airlines Strict About Carry-On Size?
American Airlines can enforce its carry-on dimensions by requiring a bag to fit an airport sizer or approved storage space. A bag that is visibly oversized, overfilled, or unable to fit safely is more likely to be checked. Enforcement may feel inconsistent because aircraft size, available bin space, and airport procedures vary.
For the lowest-risk experience, keep your carry-on at or below 22 x 14 x 9 inches and your personal item at or below 18 x 14 x 8 inches. Measure both after packing, prepare for possible valet handling on regional flights, and keep restricted or valuable items in the bag that remains with you.
Frequently Asked Questions
What is the American Airlines carry-on size limit?
A standard carry-on cannot exceed 22 x 14 x 9 inches, including its handles and wheels. It must fit in the airport sizer, overhead bin, or under the seat in front of you.
How large can an American Airlines personal item be?
The maximum personal-item size is 18 x 14 x 8 inches. It must fit fully under the seat in front of you.
Is American Airlines strict about carry-on size?
American can require a bag to fit its airport sizer and may check a bag that is oversized or cannot be stored safely. Not every bag is measured on every flight, but passengers should not rely on inconsistent enforcement.
Does American Airlines have a carry-on weight limit?
American does not publish a general weight limit for ordinary carry-on bags on its current U.S. carry-on policy page. The bag must still fit safely in an approved storage space.
Does Basic Economy include a carry-on bag?
Yes. American Airlines Basic Economy passengers may bring one standard carry-on bag and one personal item, subject to the same size and storage requirements.
What happens if my carry-on is too large?
American may require you to check it. Applicable fees depend on your fare, route, ticket date, and whether the checked bag also exceeds standard checked-bag size or weight limits. There is no universal $100 oversized-carry-on fee.
Can a backpack be my personal item?
Yes. A backpack can be a personal item when its packed dimensions do not exceed 18 x 14 x 8 inches and it fits under the seat. A larger backpack may count as the standard carry-on instead.
Do diaper bags and medical devices count as carry-ons?
One diaper bag per child, breast pumps, small breast-milk coolers, and qualifying medical or mobility devices do not count toward the standard carry-on allowance. Storage and screening requirements still apply.
Can I bring a garment bag or musical instrument?
A soft-sided garment bag may be used as the carry-on if it does not exceed 51 total linear inches. A musical instrument normally counts as the carry-on and must fit safely in a cabin storage area unless an additional seat or another approved arrangement is used.
What happens to carry-ons on American Eagle flights?
Regional aircraft often have smaller overhead bins. A carry-on larger than personal-item dimensions may need to be valeted before boarding. American says this service is free, and the bag is normally returned on the jet bridge after arrival.
Sources
- American Airlines Carry-on Bags — carry-on dimensions, personal-item dimensions, garment bags, airport sizers, and regional valet handling
- American Airlines Bag and Optional Fees — current checked-bag prices and fare-specific charges
- American Airlines Traveling With Children — diaper bags, breast pumps, strollers, car seats, and other child equipment
- American Airlines Mobility and Medical Devices — carry-on exemptions and special-assistance procedures
- Transportation Security Administration Liquids Rule — carry-on liquid, aerosol, and gel requirements
- Delta Carry-On Baggage and Southwest Carry-On Policy — official airline-size comparisons
