United Carry-On Rules: Size, Personal Item & Basic Economy
Quick answer: On most United flights, travelers can bring one carry-on and one personal item. United’s overhead carry-on maximum is 9 x 14 x 22 inches, including handles and wheels. A personal item must fit under the seat and be no larger than 9 x 10 x 17 inches.
Last reviewed: July 22, 2026. Confirm United’s official carry-on policy.
United carry-on sizes
| Bag | Published maximum |
|---|---|
| Carry-on | 9 x 14 x 22 in; must fit in the overhead bin. |
| Personal item | 9 x 10 x 17 in; must fit under the seat in front of you. |
The carry-on size is compatible with a 22 x 14 x 9 suitcase, but the personal-item limit is meaningfully smaller than many travel backpacks. Measure a packed bag before relying on it as your under-seat item.
United Basic Economy: the important carry-on exception
United Basic Economy is not a one-size-fits-all baggage rule. On many Basic Economy tickets, travelers can bring only one personal item; United notes that an overhead carry-on can lead to a fee at the gate on applicable fares. There are route and eligibility exceptions, so read the current conditions for your reservation. United’s Basic Economy page is the final check before you pack.
How to pack for United
- Use a 22 x 14 x 9 bag or smaller for overhead space.
- Keep medication, passports, batteries, and valuables in the personal item.
- For Basic Economy, verify whether your ticket includes overhead-bin access before heading to the airport.
United FAQ
Can I take a backpack and carry-on on United?
Usually, yes—when the backpack fits within the 9 x 10 x 17 personal-item allowance and your fare permits an overhead carry-on. Basic Economy restrictions can change that answer.
Do United carry-on dimensions include wheels?
Yes. United says to include the handle and wheels when measuring the 9 x 14 x 22 carry-on maximum.
Next step: compare compact personal item bags and 22 x 14 x 9 carry-ons.