Does the Travelpro Maxlite 5 21" Expandable Spinner fit United Airlines' carry-on?

No. Too long by 2.5 cm. It's 58.4 cm top to bottom and United Airlines allows 55.9 cm. It's too big for United Airlines' personal item (15.2 cm too long). On United Airlines' cheapest fare the carry-on costs extra.

Won't fit

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Side the bag fails onPart that sticks outSizer frame

Won't fit

Too long by 2.5 cm. It's 58.4 cm top to bottom and United Airlines allows 55.9 cm.

BagTravelpro Maxlite 5 21" Expandable Spinner

Cabin bagUnited Airlines

Length: 58.4of 55.9 cm2.5 cm over
Width: 36.8of 35.6 cm1.2 cm over
Depth: 22.9of 22.9 cmExact fit

WeightNo published limit on United Airlines

Packed weightkg

Gate staff can still refuse a bag you can't lift into the bin yourself.

What you can do

Take a bag 55.9 cm tall or less. 3 bags we list fit.
Or check it in when you book. It's usually cheaper than paying at the gate.
Fits 2 other airlines, including Frontier Airlines and Southwest Airlines. See all

See bags that fit United Airlines

United Airlines rules checked 2 Nov 2026. Source. Sizes include wheels and handles.

Side by side

Travelpro Maxlite 5 21" Expandable Spinner against United Airlines' limits. Bags can be turned, so the longest side is compared with the longest limit.

Carry-on: 55.9 × 35.6 × 22.9 cm
Side	Bag	Limit	Result
Length	58.4 cm	55.9 cm	2.5 cm over
Width	36.8 cm	35.6 cm	1.2 cm over
Depth	22.9 cm	22.9 cm	Exact

Personal item: 43.2 × 25.4 × 22.9 cm
Side	Bag	Limit	Result
Length	58.4 cm	43.2 cm	15.2 cm over
Width	36.8 cm	25.4 cm	11.4 cm over
Depth	22.9 cm	22.9 cm	Exact

United Airlines rules worth knowing

Carry-on: 22 × 14 × 9 in. Not included on domestic Basic Economy unless you hold MileagePlus status or a co-brand card.
Personal item: 17 × 10 × 9 in, smaller than Delta's or American's.
No published carry-on weight limit.

Airlines where the Travelpro Maxlite 5 21" Expandable Spinner fits

Frontier Airlines Southwest Airlines All airlines

Bags that fit United Airlines' carry-on

Biggest first.

CabinZero Classic 36L45 × 31 × 20 cmFits2.9 cm to spareBag page
WANDF Personal Item Duffel45 × 32 × 16 cmFits3.6 cm to spareBag page
Horizn Studios Gion Shoulder Bag27 × 18 × 5.5 cmFits17.4 cm to spareBag page

Good to know

What can I do if the Travelpro Maxlite 5 21" Expandable Spinner is too big for United Airlines?

Add a checked bag when you book, which is usually cheaper than paying at the gate, or bring a smaller carry-on. The Travelpro Maxlite 5 21" Expandable Spinner does fit Frontier Airlines and Southwest Airlines.

What is United Airlines' carry-on size limit?

United Airlines' carry-on limit is 55.9 × 35.6 × 22.9 cm, with no published weight limit.

Which other bags fit United Airlines?

CabinZero Classic 36L, WANDF Personal Item Duffel and Horizn Studios Gion Shoulder Bag fit with room to spare.