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Airline baggage comparison · United States

Delta Air Lines vs United Airlines baggage rules

A source-backed comparison of Delta Air Lines and United Airlines personal item and carry-on limits, fare conditions and weight rules.

Quick verdict

Neither airline is universally more generous; the answer changes by item or by edge.

Personal item and carry-on side by side

Bag typeDelta Air LinesUnited AirlinesDimensional result
Personal Item

Check fare conditions

Varies by fare

Check fare conditions · All cabins

43 x 25 x 22 cm

Weight not listed

Included · Standard

The available published dimensions are not complete enough for a reliable dimensional winner.
Carry-on

55 x 35 x 22 cm

Weight not listed

Included · Standard carry-on allowance

56 x 35 x 22 cm

Weight not listed

Included · Standard

United Airlines is dimensionally more generous; Delta Air Lines is stricter for this bag type. United Airlines's published frame contains Delta Air Lines's listed size.

Source match date

Recently source-checked

Published dimensions were matched to the official source within 45 days; fare and weight coverage may be separate.

Source match date Aug 7, 2026

Relative published size frames

Personal Item

Delta Air LinesCheck fare conditions
United Airlines43 x 25 x 22 cm

Carry-on

Delta Air Lines55 x 35 x 22 cm
United Airlines56 x 35 x 22 cm

Bar area is a simple volume comparison for orientation only. Airline sizers enforce each edge separately; volume alone cannot prove that a bag fits.

Official policy sources

Explore the published size limits

Common questions before you pack

Neither airline is universally more generous; the answer changes by item or by edge. Compare both rows because personal-item and overhead-bag results can differ. Fare and weight rules remain separate from dimensions.

Possibly, but only if every packed edge fits both airlines' current limit and your fares include that item. Use the prefilled comparison, then verify both official sources.

Not necessarily. Inclusion can depend on the fare, route, cabin or add-on even when the dimensions fit. The table shows the published inclusion status; your ticket controls the final allowance.