Boarding Sizer · 2026 ● Rejected

Amazon Basics Expandable Hardside Carry-On on United Airlines

Bag 21.7×14.8×10" vs sizer 22×14×9"

✕ Denied

Overhead Carry-On Verdict

No — it's oversized.

Personal Item · Under-Seat ✕ Too big

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Route UNI · AMA

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The verdict, explained

At 21.7x14.8x10", the Amazon Basics Expandable Hardside Carry-On exceeds United Airlines's 22x14x9" carry-on sizer — it is 0.8" too big on its second-longest side, 1" too big on its shortest side. Expect it to be turned away at the gate and gate-checked. On United Airlines: Basic Economy: NO overhead carry-on on most routes (personal item only). It is too large for United Airlines's under-seat personal-item space, so it has to go overhead or be checked.

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Dimension Breakdown inches

Axis	Bag	Sizer	Margin
Length	21.7"	22"	+0.3"
Width	14.8"	14"	-0.8"
Height	10"	9"	-1"

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Frequently asked

Does the Amazon Basics Expandable Hardside Carry-On fit United Airlines's carry-on size limit?

No. The Amazon Basics Expandable Hardside Carry-On is larger than United Airlines's 22x14x9" carry-on limit and will likely be gate-checked.

What is United Airlines's carry-on size limit?

United Airlines allows carry-on bags up to 22x14x9" (length x width x height), including wheels and handles. Basic Economy: NO overhead carry-on on most routes (personal item only).

Can the Amazon Basics Expandable Hardside Carry-On be a personal item on United Airlines?

No. At 21.7x14.8x10" it is too big for United Airlines's under-seat personal-item space (17x10x9"); it travels as a carry-on instead.

Bags that clear United Airlines's sizer

Alternatives that fit the 22×14×9" limit outright.

The Amazon Basics Expandable Hardside Carry-On on other airlines

Same bag, different sizers — check before a connecting or return flight.

The bag

Amazon Basics Expandable Hardside Carry-On

Hardside Spinner · 21.7×14.8×10"

The Amazon Basics Expandable Hardside Carry-On is a hard-shell hardside spinner measuring 21.7x14.8x10 inches. Its rigid shell keeps a fixed shape, so its measured size is exactly what the gate sizer sees.

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💡 At the gate

Airlines measure at the widest external point — wheels, handles, and bulging pockets all count. Pull soft-bag compression straps fully tight before you size it.