Your fit result

Does Aer Carry-On fit United Airlines?

This page compares the bag dimensions we have against one published airline rule, renders the fit to scale, and keeps the caveats visible.

Personal item

Aer Carry-On

Does not fit

Aer Carry-On is larger than the published personal-item dimensions. Pick a smaller alternative for this airline rule.

Visual sizer

Bag vs airline rule

Does not fit

Does not fit. Largest overage: 4.7 in.

Height

Over by 4.7 in

Bag 21.7 in / Rule 17 in

Width

Over by 4 in

Bag 14 in / Rule 10 in

Depth

Exact limit

Bag 9 in / Rule 9 in

warning: This result uses medium-confidence source data.
info: Basic Economy generally limited to personal item on many domestic routes

Bag: 21.7 x 14 x 9 in
Rule: 17 x 10 x 9 in
Risk: 92/100
Confidence: medium

Margins: length -4.7 in, width -4 in, depth 0 in.

Main issue: length by 4.7 in, width by 4.0 in.

Bag data

Audited dimensions

Last reviewed: 2026-05-28
Dimension confidence: high
Primary source: manufacturer

Airline rule data

Source-linked rule

Last reviewed: 2026-05-28
Rule confidence: medium
Airline rule: Airline baggage page

View bag details View airline rules Suggest correction

Better-fitting alternatives

Personal item

Alpaka Metro Backpack

Fits

Alpaka Metro Backpack fits the published personal-item dimensions for this rule. Still measure the packed bag, including handles and wheels.

Bag: 16.5 x 9.8 x 6.1 in
Rule: 17 x 10 x 9 in
Risk: 8/100
Confidence: medium

Margins: length 0.5 in, width 0.2 in, depth 2.9 in.

Bag details

Personal item

Matador ReFraction Packable Backpack

Fits

Matador ReFraction Packable Backpack fits the published personal-item dimensions for this rule. Still measure the packed bag, including handles and wheels.

Bag: 17 x 10 x 7.5 in
Rule: 17 x 10 x 9 in
Risk: 8/100
Confidence: medium

Margins: length 0 in, width 0 in, depth 1.5 in.

Bag details

Personal item

Dagne Dover Landon Carryall Medium

Fits

Dagne Dover Landon Carryall Medium fits the published personal-item dimensions for this rule. Still measure the packed bag, including handles and wheels.

Bag: 14.5 x 7.5 x 9 in
Rule: 17 x 10 x 9 in
Risk: 8/100
Confidence: medium

Margins: length 2.5 in, width 2.5 in, depth 0 in.

Bag details