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Aeroméxico vs United Airlines

Cabin and carry-on baggage limits for Aeroméxico and United Airlines, side by side.

⚠ These figures are awaiting manual verification against the airline's official page. Treat them as preliminary.

United Airlines allows the larger carry-on — its longest side is 56 cm, versus 55 cm for Aeroméxico.

Aeroméxico is more generous for personal items — up to 45 cm, versus 43 cm on United Airlines.

Check your bag

Enter your bag's dimensions to see how it fares against both airlines' carry-on limits.

optional — leave blank to skip the weight check Leave blank and we report the piece count as not checked — never as passed. Enter it only if you want it compared.

PreliminaryRules marked Preliminary have not yet been manually verified against the airline's official page. They may differ from the airline's actual policy — always confirm with the airline before you fly.

Carry-on compliance check results
Airline Verdict Fits as Margin Checked on Source

Enter your bag's size above to see which airlines accept it.

Max dimensions
55 × 40 × 25 cm
Total linear
Not published
Weight limit
15 kg combined
Pieces
1
United Airlines UA More room
Max dimensions
56 × 35 × 23 cm
Total linear
Not published
Weight limit
Not published
Pieces
1

Cabin & carry-on allowances

Baggage allowances by fare tier
Allowance Aeroméxico United Airlines
Carry-on 55 × 40 × 25 cm · Not published · 15 kg combined · 1 pc Combined carry-on + personal item weight is 15 kg on Classic, Flex, AM Plus and Premier; 10 kg on Basic and on all US-route fares. 56 × 35 × 23 cm · Not published · Not published · 1 pc including handle and wheels
Personal item 45 × 35 × 20 cm · Not published · 3 kg per piece · 1 pc Personal item up to 45x35x20 cm and 3 kg; counts within the combined cabin weight. 43 × 25 × 22 cm · Not published · Not published · 1 pc including handle and wheels Must fit under the seat in front of you

Sources

Aeroméxico

Carry-On Baggage - Aeroméxico (opens in a new window)
Official · unverified Last checked: 2026-10-11

United Airlines

Carry-on Bags (opens in a new window)
Official · unverified Last checked: 2026-10-11

The rules behind these figures

Both sides of this comparison come from these rule pages; open one to see its source excerpt.