Boarding Sizer · 2026 ● Rejected

SWISSGEAR Softside Expandable Carry-On on Allegiant Air

Bag 22×14.25×10.25" 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 ALL · SWI

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The verdict, explained

At 22x14.25x10.25", the SWISSGEAR Softside Expandable Carry-On exceeds Allegiant Air's 22x14x9" carry-on sizer — it is 0.2" too big on its second-longest side, 1.2" too big on its shortest side. Even with the straps pulled tight, the overage is too large to count on squeezing it in. Expect it to be turned away at the gate and gate-checked. On Allegiant Air: Personal item free; carry-on is a paid add-on. It is too large for Allegiant Air'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	22"	22"	+0"
Width	14.25"	14"	-0.2"
Height	10.25"	9"	-1.2"

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Frequently asked

Does the SWISSGEAR Softside Expandable Carry-On fit Allegiant Air's carry-on size limit?

No. The SWISSGEAR Softside Expandable Carry-On is larger than Allegiant Air's 22x14x9" carry-on limit and will likely be gate-checked.

What is Allegiant Air's carry-on size limit?

Allegiant Air allows carry-on bags up to 22x14x9" (length x width x height), including wheels and handles. Personal item free; carry-on is a paid add-on.

Can the SWISSGEAR Softside Expandable Carry-On be a personal item on Allegiant Air?

No. At 22x14.25x10.25" it is too big for Allegiant Air's under-seat personal-item space (16x15x7"); it travels as a carry-on instead.

Bags that clear Allegiant Air's sizer

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

The SWISSGEAR Softside Expandable Carry-On on other airlines

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

The bag

SWISSGEAR Softside Expandable Carry-On

Softside Spinner · 22×14.25×10.25"

The SWISSGEAR Softside Expandable Carry-On is a soft-sided softside spinner measuring 22x14.25x10.25 inches. As a soft-sided bag it can compress slightly to squeeze into a tight gate sizer.

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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.