Baggage information and fees
Most travelers can bring one full-size carry-on bag and one personal item on their flight for free. However, there are exceptions, including for customers traveling on Basic Economy tickets. Learn more about carry-on bags.
Carry-on bag sizes

The maximum size a carry-on bag can be for it to fit in the overhead bin in 9 in. x 14 in. x 22 in. (22 cm. x 35 cm. x 56 cm.), including any handles or wheels.
Personal item sizes

Personal items, such as shoulder bags, backpacks or laptop bags need to fit under the seat in front of you, so they must be 9 in. x 10 in. x 17 in. (22 cm. x 25 cm. x 43 cm.) or smaller.

Baggage fee calculator
Depending on where and how you travel, you may have to pay to check your bag. Use our baggage fee calculator to see how much it’ll cost.
Size and weight limits for checked bags
The most a standard checked bag can measure (length + width + height) on the outside is 62 inches. This includes the handles and wheels. The most a checked bag can weigh depends on your cabin and Premier® status at check-in. If the maximum size or weight differ based on your cabin and MileagePlus status, we’ll apply the larger limit.
Weight limits by class of service
Class of service | Maximum weight per bag |
---|---|
United Economy®
Premium Economy® | 50 pounds (23 kilograms) |
United Business®
United First® United Polaris® business class | 70 pounds (32 kilograms) |
Weight limits by MileagePlus status
MileagePlus status | Maximum weight per bag |
---|---|
Premier Silver
Premier Gold Premier Platinum Premier 1K® | 70 pounds (32 kilograms) |
Star Alliance™ Gold | 70 pounds (32 kilograms) in Business
50 pounds (23 kilograms) in Economy |
Other service charges apply to additional checked bags or any bags that exceed these sizes and weights. Visit the oversized, overweight and extra bags section below for more information.
What to keep in mind when checking your bags
Make sure to check your bag on time
Know the latest time you can check your bag at your departure airport. We won’t be able to check your bags if you don’t meet these times.
Keep your claim check
You’ll receive a claim check for each checked bag. Treat them as receipts and keep them until you collect all your checked bags at your final destination.
Review our process for connecting flights
We check bags between the origin and destination listed on your ticket. Visit the connecting flights section below for more information.
More information about traveling with bags
MileagePlus rules:
The accrual of miles and Premier® qualifying credits, redemption of awards and provision of benefits through the United MileagePlus program, including the Premier Program, are subject to change and are subject to the rules of the MileagePlus program. See the complete rules and details of the MileagePlus program
1If you make a voluntary change to your trip and fly with a different airline for the first leg, the policies of the new airline will apply. If this airline isn’t United or United Express, you may have to pay a different amount as well.
2Travel companions of Premier members have the same exemptions as the Premier member whose status provides the benefit. This only applies if they’re traveling on the same reservation. Exemptions don’t apply to group reservations of 10 or more customers.
3Baggage allowances are subject to change. Certain markets are subject to limits on checked bags.
4United First, United Business and United Polaris® business class.
5For all United Economy tickets, Premier Gold members can check two complimentary bags at 70 pounds (32 kg) each for travel between the U.S., Canada, Puerto Rico and the U.S. Virgin Islands. For travel to and from select international markets, Premier Gold members can check three complimentary bags at 70 pounds each.
6For tickets issued on or after June 17, 2019, for travel mentioned in the Premier Baggage Exceptions table, Premier members will be allowed two bags weighing up to 70 lbs. (32 kg) when flying to or from SDQ, MGA, GUA, SAP, TGU and HAV.