United States · Major AirlineUpdated 2026 Guidelines

United Airlines Baggage Size & Fee Limits

Planning to fly with United Airlines? Standard carry-on dimensions are strictly set at 22x14x9 inches. Before you head to the gate, enter your luggage measurements below to see if your bag is safe from extra sizer charges.

Calculator included Official United Airlines limits Verified Q3 2026

United Airlines Sizer Limits Overview

Major Carrier

Personal Item

17 x 10 x 9 in

Must fit under the seat in front. Limit 17 x 10 x 9 inches. This is the ONLY bag allowed on Basic Economy tickets.

Carry-On Bag

22 x 14 x 9 in

Must fit overhead. BASIC ECONOMY tickets do NOT include a carry-on bag (unless trans-Atlantic/Pacific).

Checked Bag

50 lbs (23 kg)

Standard checked bag limits apply: 62 linear inches, 50 lbs. Business/First class allows 70 lbs (32 kg).

Can I Bring It? Sizer Calculator

Length18 in
Width14 in
Height (Thickness)8 in
Bag Weight15 lbs
Compliance Results for United Airlines
Fail
Under-seat Personal Item

Too Large (Airline max is 17x10x9 in)

Pass
Overhead Cabin Carry-On

Fits overhead bin free

Pass
Checked Hold Bag

Complies with standard checked limits

Estimated Baggage Fee:$0

Detailed Luggage Guidelines

Here is the full breakdown of size sizer dimensions, weight caps, and carry-on/checked bag policies.

Luggage TypeMaximum Size (Inches)Maximum Size (Metric)Weight CapStandard Cost
Personal Item17 x 10 x 9 in43 x 25 x 22 cmNo strict limitFREE (Fits under seat)
Carry-On Bag22 x 14 x 9 in56 x 35 x 23 cmNo limit (must lift)Free for standard economy and higher
1st Checked BagMax 62 linear inchesMax 157 linear cmMax 50 lbs$30 USD
Pro-Tip for United Airlines Travelers

If flying United Basic Economy, you cannot bring a carry-on. Buy your ticket with a United Explorer credit card to bypass this rule and get a free carry-on + free checked bag for your group.

Best bag selection: United has a slightly narrower personal item sizer (17x10x9"). Use a dedicated commuter tote or brief bag rather than a bulging backpack.

Baggage Penalty & Excess Fees

Exceeding either sizer dimensions or weight caps will result in extra charges at check-in or boarding gates.

Fee CategoryDomestic US RateDetails
1st Checked Bag Fee$30$35 for 1st bag ($30 if prepaid online), $45 for 2nd bag ($40 online).
2nd Checked Bag Fee$40Standard rate for economy passengers.
Overweight Charge$100Applies if the bag exceeds standard weight caps (e.g. 50 lbs / 23 kg).
Oversized Charge$200Applies if the bag linear dimensions exceed 62 inches.

For more details or to pre-book excess luggage allowances online, visit the official United Airlines Baggage Page.

Frequently Asked Questions

What is the maximum baggage size sizer for United Airlines in 2026?+
Your carry-on bag must measure within 22x14x9 in (including wheels and handles) to fit into United Airlines's overhead bin sizers. Your personal item must fit within 17x10x9 in to go under the seat in front of you.
What happens if my cabin bag exceeds the United Airlines sizer?+
If your luggage exceeds sizer limits at the boarding gate, you will be charged a gate check fee. For United Airlines, this can range up to $65 and the bag will be checked into the hold.
How much does a checked bag cost on United Airlines?+
A standard 50 lbs (23 kg) checked bag on United Airlines costs $30 if checked in. Low-cost tickets may charge extra. Booking your bags online 24 hours prior to departure is always cheaper than purchasing at the airport counter.