United Airlines Carry-on & Personal Item & Checked Baggage Rules 2026
United Airlines allows one cabin bag up to 22 x 14 x 9 inches or 56 x 35 x 23 cm plus one personal item up to 17 x 10 x 9 inches or 43 x 25 x 22 cm for all passengers, and standard economy fares do not include free checked baggage on domestic US routes while long haul international economy tickets include one free checked bag weighing up to 50 pounds or 23 kilograms with a maximum linear size of 62 inches or 158 centimetres.
Published on July 9, 2026 · Last verified on August 8, 2026 by Luggage Validator
7/10
United Airlines Baggage Policy Strictness
Strict
Overview
Standard baggage allowance for your selected route and fare class. All dimensions include wheels and handles.
Carry-on Bag
56 × 35 × 23 cm (22 × 14 × 9 in)
Overhead bin · Not specified
Personal Item
43 × 25 × 22 cm (17 × 10 × 9 in)
Under seat ·Not specified
Checked Baggage
No free bags
Available for a fee
Included in higher fares
Free Special Items
Items you can bring for free that do not count toward your standard baggage allowance on United Airlines.
Jacket or umbrella
Food or drink purchased at the airport
Assistive devices (e.g., cane, wheelchair)
Diaper bag and breast pump
Compact FAA-approved stroller
Standard Economy Allowance
Quick reference for your selected route type. See below for full cabin class comparison.
| Baggage Type | Free | Max Size | Weight Limit |
|---|---|---|---|
| Carry-on Bag Overhead bin · per piece | 1 pc | 56×35×23cm 22×14×9in | Not specified |
| Personal Item Under seat · per piece | 1 pc | 43×25×22cm 17×10×9in | Not specified |
| Checked Baggage Cargo hold · piece system | No free | - | - |
Full Cabin Class Comparison
Compare allowances across all fare types and cabin classes for your selected route.
| Item | Basic Economy | Economy | Premium Plus | Polaris | First |
|---|---|---|---|---|---|
| Personal Item Under seat | 1 pc | 1 pc | 1 pc | 1 pc | 1 pc |
| Personal Item Size L × W × H | 43×25×22cm 17×10×9in | 43×25×22cm 17×10×9in | 43×25×22cm 17×10×9in | 43×25×22cm 17×10×9in | 43×25×22cm 17×10×9in |
| Carry-on Pieces Overhead bin access | No | 1 pc | 1 pc | 1 pc | 1 pc |
| Carry-on Size L × W × H | - | 56×35×23cm 22×14×9in | 56×35×23cm 22×14×9in | 56×35×23cm 22×14×9in | 56×35×23cm 22×14×9in |
| Carry-on Weight Per piece | - | Not specified | Not specified | Not specified | Not specified |
| Free Checked Bags Piece system | No | No | 2 pc | 2 pc | 2 pc |
| Checked Bag Size Max per piece | - | - | ≤ 158 cm 62 in | ≤ 158 cm 62 in | ≤ 158 cm 62 in |
| Checked Bag Weight Per piece max | - | - | 23 kg 50 lbs | 32 kg 70 lbs | 32 kg 70 lbs |
Recent Traveller Feedback
Booked a Basic Economy ticket from Denver to Chicago and got stopped right at the boarding gate because I brought a full size rolling carry on bag, which is not allowed on Basic Economy fares for domestic routes, so I had to pay about 75 dollars to check it at the gate which was way more than if I had just picked regular economy in the first place.
75 USD
Flew United from Houston to Miami for work and my checked suitcase came in at 54 pounds which was only 4 pounds over the 50 pound limit, and they charged me a 100 dollar overweight fee at the counter which felt really expensive for such a small amount over the standard limit.
100 USD
Flew Polaris Business class from San Francisco to Tokyo and was glad to confirm that business and first class passengers get the higher 70 pound or 32 kilogram checked bag weight limit per piece instead of the standard 50 pounds that applies to regular economy tickets.
Got stopped at the boarding gate on a busy flight from Newark to Boston and they made me put my carry on into the official sizing frame, and the measurement definitely includes both wheels and the top handle so a standard 20 inch suitcase usually fits fine but overstuffed or expanded bags can be a tight squeeze.
Your actual baggage allowance on United Airlines can change quite a bit depending on your fare type, which route you are flying, and your MileagePlus frequent flyer status, so it is always worth double checking your specific booking details before you pack for your trip.
Common Luggage Compatibility
Based on United Airlines · Economy class · Domestic routes. Compare luggage compatibility across all fare types and cabin classes using the filters above.
| Luggage | Personal Item | Carry-on | Checked |
|---|---|---|---|
Regular Backpack | Over Limit | OK | OK |
16" Under-seat Briefcase | Over Limit | OK | OK |
18" Cabin Suitcase | Over Limit | OK | OK |
Standard 20" Carry-on | Over Limit | Over Limit | OK |
22" North American Carry-on | Over Limit | OK | OK |
24" Medium Checked Suitcase | Over Limit | Over Limit | OK |
26" Mid-size Checked Suitcase | Over Limit | Over Limit | OK |
28" Large Checked Suitcase (IATA Standard) | Over Limit | Over Limit | OK |
Frequently Asked Questions
What is the United Airlines baggage allowance for Basic Economy?
United Airlines Basic Economy has a different baggage allowance compared to standard Economy tickets, and on most domestic and North American routes Basic Economy passengers may only bring one personal item that fits under the seat with maximum dimensions of 17 x 10 x 9 inches or 43 x 25 x 22 cm.
A full size carry on bag is generally not included in Basic Economy on shorter routes unless your itinerary qualifies for an exception, such as certain long haul international flights or if you have eligible MileagePlus status or a United co brand credit card.
Always check the baggage allowance shown on your booking confirmation because the exact rules depend on your specific route, fare type and frequent flyer status.
Can I bring both a carry-on bag and a personal item on United Airlines?
Yes, if you are traveling on a standard Economy, Premium Plus, Polaris Business or First Class ticket you can bring one carry on bag and one personal item with you into the cabin on all United Airlines routes.
The carry on bag must fit in the overhead bin and can be up to 22 x 14 x 9 inches or 56 x 35 x 23 cm, while the smaller personal item should fit completely underneath the seat in front of you with maximum dimensions of 17 x 10 x 9 inches.
Travelers often confuse regular Economy with Basic Economy, so it is very important to verify your fare class before your trip to avoid unexpected gate check fees for your carry on bag.
How strict is United Airlines with carry-on baggage size?
United Airlines generally expects all passengers to follow its published carry on baggage size limits of 22 x 14 x 9 inches including wheels and handles, and enforcement tends to be stricter on full flights or at busy airports during peak travel periods.
While some travelers report that slightly oversized bags are accepted on quieter flights, other passengers have been asked to gate check luggage that clearly does not fit in the official sizing frame at the boarding gate.
To avoid delays or extra charges it is safest to use a carry on bag that actually meets the official United Airlines size requirements rather than hoping that nobody will check your bag at the gate.
What happens if the overhead bins are full on a United Airlines flight?
If the overhead compartments fill up before you get a chance to board, United Airlines may gate check your carry on baggage at no additional charge as long as your bag fits within the normal size limits.
This is quite common on completely full flights, even when your carry on is well within the official allowed dimensions and would normally fit without any problems.
Gate checked bags are normally returned to you right after landing, either at the jet bridge or at the regular baggage claim depending on the specific airport and aircraft type for your flight.
Bringing a properly sized carry on improves your chances of keeping it with you in the cabin, but overhead bin space is never guaranteed on any United Airlines flight.
How can I check my United Airlines baggage allowance before flying?
The easiest and most reliable way to confirm your United Airlines baggage allowance is to review the baggage details in your reservation or on your boarding pass rather than relying on general baggage rules from other websites.
Your exact allowance can vary based on your fare type, destination region, MileagePlus frequent flyer status, and whether your itinerary includes any partner airline flights operated by Star Alliance carriers.
Checking your booking details before departure helps avoid confusion about United checked baggage limits, carry on rules, and any applicable baggage fees for extra or overweight bags.
All baggage rules on this page are from the official United Airlines website. Last updated August 8, 2026. Before you fly, please check the official site again to make sure nothing has changed.
Help keep this data accurate. If you spot outdated baggage rules or have recent experience flying with United Airlines contribute your update