You might be wondering what each airline allows for the size of carry-on luggage. Carry-on luggage requirements can be difficult to comply with, which makes packing one of the most stressful parts of any trip. And with airlines trying anything to make an extra buck, checking bags will inevitably cost you more unless you’re flying under the radar by having the right airline credit card, using elite airline status or purchasing a ticket in a premium cabin. But who wants to check a bag if you can fit your travel essentials in a carry-on bag?
Fear not. We’re here to make things a little easier by breaking down the carry-on policies of the major and budget US domestic airlines, as well as offer luggage suggestions that you might consider for your next trip. So, buckle up, return your seat to the upright position and enjoy the flight.
Size matters
When it comes to measuring luggage size, airlines have their own methods to ensure everything fits. (Sadly, the same can’t be said for economy class legroom.) There are two ways that airlines measure your carry-on.
- H x W x D: Most airlines use this formula to calculate bag size. For example, they might require dimensions like 22 x 14 x 9 inches, which is the most common set of dimensions for carry-ons.
- Linear inches: Some airlines prefer a single number that represents the total of all three dimensions (height, width and depth). As long as your bag’s combined dimensions don’t exceed that magic number, you’re good to go!
So, now that you know, pack smart and enjoy a stress-free, fun-filled journey.
FAQ
What is the difference between a personal item and a carry-on item, and how do airlines define each?
You generally are entitled to one personal item and one carry on.
A personal item is a smaller bag that typically fits under the seat in front of you, such as a purse, briefcase or small backpack. A carry-on item is a larger bag that can be stowed in the overhead bin, like a suitcase or duffel bag. Airlines define each based on specific size requirements, which vary by carrier.
Can I bring a backpack as a personal item, or does it count as a carry-on?
You can bring a backpack as a personal item, as long as it meets the size requirements specified by your airline. If it’s too large, it will be considered a carry-on item.
Are musical instruments, sports equipment or medical devices considered carry-on items, or do they have separate policies and restrictions?
These items may be considered carry-on items if they meet the airline’s size requirements. However, airlines often have separate policies and restrictions for such items. It’s best to check with your specific carrier for guidelines on traveling with these items. Medical devices aren’t generally considered carry-ons or personal items and are often exempt from restrictive bag policies.
What types of items are prohibited in carry-on luggage, and what can be packed in checked baggage instead?
Items such as firearms, sharp objects, certain lithium batteries and other hazardous materials are typically prohibited in carry-on luggage. While some items can be packed in checked baggage instead, always consult the Transportation Security Administration (TSA) and the airline for a complete list of prohibited items and packing guidelines.
Can I bring a stroller, car seat or other child-related equipment as a carry-on, or do airlines have specific policies for these items?
Airlines often have specific policies for child-related equipment, such as allowing a stroller or car seat to be checked at the gate. However, these items may not always qualify as carry-on luggage due to their size.
How do airlines handle oversized or overweight carry-on luggage, and what are the potential fees?
If your carry-on luggage exceeds the airline’s size or weight requirements, it may be subject to additional fees or required to be checked as regular luggage. Fees vary by airline and can depend on factors such as the size or weight of the item and your fare class.
Major US domestic airlines carry-on policies
Alaska Airlines
Alaska Airlines allows passengers one personal item (18 x 14 x 8 inches) and one larger carry-on (22 x 14 x 9 inches) free of charge. The personal item must fit under the seat, while the larger carry-on goes in the overhead bin.
As for checked bags, unless you are an Alaska Airlines credit card holder or have elite status, the first checked bag is $35, the second $45 and it’s $150 for the third and any additional bags in economy.
- Personal item: 18 x 14 x 8 inches, no weight limit.
- Carry-on: 22 x 14 x 9 inches, must fit in the sizer at the airport (including handles and wheels), no weight limit.
- Items that don’t count toward carry-on allowance: Coats, hats, umbrellas, a pillow, FAA-approved child/infant restraint seats to be occupied by a child, strollers and mobility/medical assistive devices.
American Airlines
American Airlines allows passengers one personal item (18 x 14 x 8 inches) and one larger carry-on (22 x 14 x 9 inches) free of charge. The personal item must fit under the seat, while the larger carry-on goes in the overhead bin.
As for checked bags, unless you qualify for one of their mileage or credit card perks, the first checked bag is $40 ($35 if you pay online), the second $45, $150 for the third and $200 for the fourth.
- Personal item: 18 x 14 x 8 inches.
- Carry-on: 22 x 14 x 9 inches, must fit in the sizer at the airport (including handles and wheels), no weight limit.
- Items that don’t count toward carry-on allowance: Diaper bags (1 per child), breast pump, soft-sided cooler of breast milk, child safety seats, strollers and medical or mobility devices.
The standard Away Carry-On may be our pick for best hard-shell carry-on, but for a few extra bucks, we love the Bigger Carry-On Flex because you can expand it for over two inches of extra packing space. Plus, it has four spinner wheels for smooth rolling.
Delta Air Lines
Delta permits one personal item and one larger carry-on item free of charge. The combined dimensions of carry-on baggage should be less than 45 inches, with individual items measuring no more than 22 x 14 x 9 inches.
Delta Connection passengers, including on flights with 50 seats or fewer, are only permitted personal items due to limited overhead space. Personal items must fit securely under the seat or in overhead bins.
Your first checked bag is free for Delta SkyMiles Medallion Members, select Delta SkyMiles American Express card members and active duty military members. Otherwise, your first checked bag is $35 and the second is $45.
- Personal item: A purse, briefcase, small backpack, camera bag or diaper bag, laptop bag or one item of similar or smaller size, with no stated weight limit.
- Carry-on: Combined sum of the length, width and height of baggage must not exceed 45 linear inches. Individual length, width and height measurements may not exceed 22 x 14 x 9 inches, with no stated weight limit.
- Items that don’t count toward carry-on allowance: Jackets and/or umbrellas, food or drink purchased after the security checkpoint, duty-free merchandise, special items like strollers, wheelchairs, child safety seats or assistive devices like crutches.
One of our two favorite picks for best soft-shell carry-on suitcase, Samsonite’s handsome NuRoad comes with a TSA-approved lock, an adjustable handle and super maneuverable wheels for all your airport shenanigans.
Southwest Airlines
Southwest permits passengers one personal item (16.25 x 13.5 x 8 inches) and one larger carry-on (24 x 16 x 10 inches). The personal item must fit under the seat, and the larger carry-on goes in the overhead bin.
Southwest does not charge additional fees for carry-on bags, but anything larger than these must be checked. The first two checked bags are free on Southwest and $75 per item, one way, beyond that.
- Personal item: 16.25 x 13.5 x 8 inches.
- Carry-on: Small items like a purse, briefcase, laptop computer case, backpack, pillow, blanket or a small camera that fits under the seat.
- Items that don’t count toward carry-on allowance: Child restraint systems, assistive/mobility devices for individuals with a disability (there is no limit to the number of assistive/mobility devices you can bring), outer garments or other clothing, food in disposable packaging and walking canes or umbrellas.
Roam is the first color-customizable, direct-to-consumer luggage brand that lets you create your dream carry-on. We loved being able to choose everything from the colors of the front and back panels, to the wheels to the trim. And best of all? The Large Carry-on is the perfect fit, and you’ll never confuse it with someone else’s boring black bag.
United Airlines
United Airlines allows passengers one personal item (17 x 10 x 9 inches) and one larger carry-on (22 x 14 x 9 inches) free of charge. The personal item must fit under the seat, while the larger carry-on goes in the overhead bin.
Basic economy passengers, however, are limited to one personal item and will be charged for a personal item on domestic flights. For example, a carry-on bag on a May 1 flight from Washington-Dulles (IAD) to Los Angeles (LAX) costs $55 in basic economy. You get a $5 discount if you prepay.
- Personal item: 17 x 10 x 9 inches.
- Carry-on: 22 x 14 x 9 inches, free if you’re not flying basic economy.
- Items that don’t count toward carry-on allowance: Jacket or coat, umbrella, things to read, food or other items bought at the airport, mobility devices, car seats, diaper bag, breast pump and a camera.
Want to get noticed on your next airport jaunt? Why not opt for this happy, shiny rose gold carry-on that can be found all over your favorite Instagram feeds. Weighing in at just 6 pounds, it’s the perfect, monochromatic luggage to stow away and can even expand by 2 inches if you need an extra pair of sandals.
Budget US domestic airlines carry-on policies
Allegiant Air
Allegiant Air allows one personal item (18 x 14 x 8 inches) free of charge, which must fit under the seat. A larger carry-on (22 x 16 x 10 inches) is permitted, but fees apply, starting at $28 when you book. The carry-on bag should not weigh more than 25 pounds.
Allegiant is not great for bag fees. In a hypothetical flight from Washington-Dulles (IAD) to Austin, Texas (AUS) each carry-on costs $28 at booking, $45 after booking but before departure and $50 if you check it at the airport. Fees can go as high as $70 per bag, though, depending on where and when you’re traveling.
- Personal item: 18 x 14 x 8 inches.
- Carry-on: 22 x 16 x 10 inches, starting at $28 and weighing no more than 25 pounds.
- Items that don’t count toward carry-on allowance: Food items for immediate consumption, mobility aids like wheelchairs and canes, one box or bag of duty free merchandise, a coat or jacket, an umbrella, one item of reading material and diaper bags.
Measuring 13.58 x 9.45 x 19.09 inches, this Amazon-branded hard-side carry-on has an extra-tough ABS shell, four double-spinner wheels and a telescoping handle.
Avelo Airlines
Avelo permits one complimentary personal item (17 x 13 x 9 inches) and one larger carry-on item (22 x 14 x 9 inches) for a fee. The personal item must fit under the seat, while the larger carry-on is stored in the overhead bin.
Avelo doesn’t specify a weight limit for carry-on bags, but you need to be able to lift it unassisted into the overhead bin. Additional fees for the larger carry-on depend on the time you book the baggage. It may range from $40 to $65.
- Personal item: 17 x 13 x 9 inches.
- Carry-on: 22 x 14 x 9 inches, starting at $43.
- Items that don’t count toward carry-on allowance: Manual wheelchairs, mobility aids and other assistive devices, outerwear, instruments and special equipment.
Breeze Airways
Breeze Airways allows passengers one personal item (17 x 14 x 8 inches) for free but charges for larger carry-ons (22 x 14 x 9 inches), unless you purchase one of its ticket bundles. If you don’t purchase a ticket bundle, the fee for a carry-on starts at $35. The personal item must fit under the seat, while the larger carry-on is stored in the overhead bin.
- Personal item: 17 x 14 x 8 inches.
- Carry-on: 22 x 14 x 9 inches, starting at $35 and weighing no more than 35 pounds.
- Items that don’t count toward carry-on allowance: Not listed.
With over 9,500 5-star ratings on Amazon, this sturdy workhorse of a carry-on is an easy-peasy purchase to help you smoothly get past checking your bag. Plus, we like its telescoping handle and quality spinning wheels, all for a budget price.
JetBlue Airlines
JetBlue allows passengers one personal item (17 x 13 x 8 inches) and one larger carry-on (22 x 14 x 9 inches). The personal item must fit under the seat, while the larger carry-on should be placed in the overhead bin.
That said, Blue Basic fare passengers are only permitted to have one personal item on board and are charged $65 to gate check a carry-on. Customers flying on Blue, Blue Plus, Blue Extra and Mint fares are allowed one carry-on, however.
Checked bags are extra, of course, starting at $35 for Blue Basic, Blue and Blue Extra travelers. Blue Plus and Mint fares — and those with Mosaic status or a qualifying credit card — get their first checked bag free. After that everyone except Mint and Mosaic travelers pay $45 for a second checked bag.
- Personal item: 17 x 13 x 8 inches.
- Carry-on: 22 x 14 x 9 inches, costs $65 if you’re a Blue Basic customer.
- Items that don’t count toward carry-on allowance: Wheelchairs, strollers, crutches and other assistive devices.
Frontier Airlines
Frontier Airlines permits one personal item (18 x 14 x 8 inches) free of charge, which must fit under the seat. A larger carry-on item (24 x 16 x 10 inches) is allowed, but fees apply, starting at $15 per bag at the time of booking and reaching $75 per bag the nearer you are to your travel date.
- Personal item: 18 x 14 x 8 inches.
- Carry-on: 22 x 14 x 10 inches, starting at $15 and weighing no more than 35 pounds.
- Items that don’t count toward carry-on allowance: Strollers, car seats, wheelchairs, scooters and other mobility devices.
Spirit Airlines
Spirit Airlines allows passengers one personal item (18 x 14 x 8 inches) for free but charges for larger carry-ons (22 x 18 x 10 inches), with fees starting at $59. The personal item must fit under the seat, while the larger carry-on is stored in the overhead bin.
Spirit’s fees, like most of the other budget airlines, increase as you get closer to the day of travel, topping out at $99 (!) if you pay for your carry-on at the gate.
- Personal item: 18 x 14 x 8 inches.
- Carry-on: 22 x 18 x 10 inches, starting at $59 and weighing no more than 35 pounds.
- Items that don’t count toward carry-on allowance: Umbrella, camera, infant diaper bag, assistive devices, outer garments, reading material and food for the flight. Neck and head pillows can be carried onboard if they fit completely in your personal item.
Sun Country Airlines
Sun Country permits passengers one personal item (17 x 13 x 9 inches) and one larger carry-on (24 x 16 x 11 inches). The personal item must fit under the seat, while the larger carry-on is stored in the overhead bin.
Carry-on bags should not weigh more than 35 pounds. Additional fees for the larger carry-on start at $30 at the time of booking and go up to $50 per bag if you have to pay at the gate.
- Personal item: 17 x 13 x 9 inches.
- Carry-on: 24 x 16 x 11 inches, starting at $30 and weighing no more than 35 pounds.
- Items that don’t count toward carry-on allowance: Wheelchairs, mobility devices, medical devices, diaper bags (one per infant) and breast pumps.
Major international airlines carry-on luggage policies
Aeromexico
Aeromexico allows passengers one personal item and one larger carry-on free of charge. The standard carry-on and personal item must not exceed 21.5 x 15.7 x 10 inches individually.
The personal item must fit under the seat, while the larger carry-on is stored in the overhead bin. If you choose to purchase the “Classic Fare,” there is a 25% discount on checked baggage, while if you choose to purchase “AM Fare,” one piece of checked baggage is included along with an exclusive overhead bin.
- Personal item: Must not exceed 21.5 x 15.7 x 10 inches.
- Carry-on: 21.5 x 15.7 x 10 inches, weighing no more than 22 pounds.
- Items that don’t count toward carry-on allowance: Medical devices, jackets, bags containing items purchased in the duty free area, travel pillows and blankets, books and electronics like cameras, computers, headphones and e-readers.
Air Canada
Regardless of your destination, Air Canada permits one personal item (17 x 13 x 6 inches) and one larger carry-on item (21.5 x 15.5 x 9 inches) free of charge. Although no weight limit applies to carry-on baggage, your bag must be light enough that you can store it in the overhead bin without help. The personal item must fit under the seat in front of you.
Your checked baggage allowance is determined by your fare, destination, date of ticket purchase and loyalty program status.
- Personal item: 17 x 13 x 6 inches.
- Carry-on: 21.5 x 15.5 x 9 inches.
- Items that don’t count toward carry-on allowance: Jackets and/or umbrellas, food or drink purchased after the security checkpoint, duty-free merchandise, special items like strollers, wheelchairs, child safety seats or assistive devices like crutches.
British Airways
All passengers are permitted one personal item (16 x 12 x 6 inches) and one larger carry-on (22 x 18 x 10 inches). Both items must not weigh more than 51 pounds each.
As for checked bags, the first checked bag is $25 to $50 and each additional bag is $45 to $75. These fees depend on your route and are per one-way journey.
- Personal item: 16 x 12 x 6 inches weighing no more than 51 pounds.
- Carry-on: 22 x 18 x 10 inches weighing no more than 51 pounds.
- Items that don’t count toward carry-on allowance: Wheelchairs, mobility aids and assistive devices.
Emirates
All passengers are permitted one carry-on (21.6 x 14.9 x 8.6 inches). Unless you are flying Business or First Class, extra baggage may not be admitted. Those flying with an infant will be permitted to check an extra piece of luggage free of charge as long as it weighs no more than 22 pounds.
- Personal item: 18 x 14 x 8 inches, only if you’ve purchased first or business class.
- Carry-on: 21.6 x 14.9 x 8.6 inches and weighing no more than 15.43 pounds in economy.
- Items that don’t count toward carry-on allowance: Medications, baby milk or foods and duty-free purchases.
Lufthansa
Lufthansa allows one personal item (15 x 11 x 3.9 inches) and one larger carry-on (22 x 16 x 9 inches). All carry-on luggage must fit in the overhead bin or under the seat in front of you. If you are flying business or first class you are permitted two items of carry-on baggage.
Free baggage allowance and the cost of optional baggage depend on the route and booked travel class. You can use their calculator here to check how much baggage you can take with you and how to book additional baggage.
- Personal item: 15 x 11 x 3.9 inches.
- Carry-on: 21.65 x 15.75 x 9 inches, free and weighing no more than 17.64 pounds in economy.
- Items that don’t count toward carry-on allowance: A baby carry cot or child seat, wheelchairs and orthopedic aids.
Singapore Airlines
Singapore Airlines allows one personal item (15.75 x 11.81 x 3.94 inches) and one larger carry-on in economy class or two in Suites, first and business class. The sum of length, width and height of the larger carry-on should not exceed 45.28 inches for all classes. Baggage should also not exceed 15.43 pounds.
Checked baggage allowance is based on the weight or piece concept, depending on your final destination.
- Personal item: 15.75 x 11.81 x 3.94 inches inches.
- Carry-on: Sum of length, width and height should not exceed 45.28 inches and weigh no more than 15.43 pounds.
- Items that don’t count toward carry-on allowance: Overcoat, umbrella, infant’s amenities and food, walking stick and a small amount of duty-free goods.
WestJet
All passengers are permitted one personal item (16 x 13 x 6 inches) and one item of carry-on baggage (21 x 15 x 9 inches) for free. Items that do not fit into the sizing device at the airport or exceed the carry-on allowance will be placed in checked baggage for a fee. Your carry-on must fit in the overhead bin and personal items need to fit under the seat in front of you.
- Personal item: 16 x 13 x 6 inches.
- Carry-on: 21 x 15 x 9 inches.
- Items that don’t count toward carry-on allowance: Diaper bags, duty-free merchandise, medical devices, medication, personal clothing items, canes and crutches.
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