Airline spec · verified 2026-07-02
Allegiant Air carry-on & personal item size limits
Every number below was checked against Allegiant Air's official pages on 2026-07-02, with links to the source.
Carry-on bag paid verified
22 × 16 × 10 in
No published weight limit
Official order printed 10 x 16 x 22 in; paid
Source: official page · checked 2026-07-02
Personal item free verified
16 × 15 × 7 in
No published weight limit
Official order printed 7 x 15 x 16 in; must stow completely under seat
Source: official page · checked 2026-07-02
Checked bag paid verified
80 linear in (L+W+H)
Weight limit: 50 lb
Total length + width + height must also stay under 80 linear inches.
Unusually generous 80 linear inches; up to 50 lb per bag; checked bags are paid
Source: official page · checked 2026-07-02
Check if your bag fits Allegiant Air →
Sizer enforcement: strict editorial view, not airline data
Paid carry-on; personal-item sizer shape is unusual (deep) — measure carefully
Shopping for a bag? These clear Allegiant Air
Already have a bag — check it against Allegiant Air. Buying a new one? Each below is measured against Allegiant Air's published limit; only bags we can verify appear.
What is worth knowing about Allegiant Air
Allegiant prints its dimensions in the order most travellers do not expect — 10 x 16 x 22 in for the carry-on, 7 x 15 x 16 in for the personal item — and the personal item is the trap: it is deep rather than wide, and it has to stow completely under the seat rather than mostly. The carry-on is paid. The hold is the generous part, and unusually so: 80 linear inches against the 62 nearly everyone else allows, at up to 50 lb a bag.
Two limits Allegiant Air does not set
The sizes above are the ones Allegiant Air publishes. These are not, and they do not change when you switch carriers: liquids in the cabin — at a US checkpoint every liquid, aerosol, gel, cream and paste must be 3.4 oz (100 ml) or less and fit one quart-sized bag (TSA — Liquids, Aerosols and Gels Rule); and power banks and spare lithium batteries, which must be carried in the cabin only, never in a checked bag, with an ordinary rechargeable cell capped at 100 watt-hours (FAA PackSafe — Lithium Batteries). The FAA states that airlines may set stricter watt-hour and quantity limits than its own, so Allegiant Air can be tighter than this and never looser.
Item by item, the answers are on our can you bring it on a plane pages.
Size limits change. We watch them for you.
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Common questions
What size carry-on does Allegiant Air allow?
22 × 16 × 10 in . Checked against the official page on 2026-07-02.
Does Allegiant Air charge for a carry-on?
Yes. A full-size carry-on is a paid add-on on base fares, and it is usually cheaper at booking than at the gate. The free allowance is the personal item.
What size personal item does Allegiant Air allow?
16 × 15 × 7 in — it must fit under the seat in front of you.
Is there a carry-on weight limit on Allegiant Air?
No general weight limit is published for Allegiant Air carry-ons as of 2026-07-02. You must be able to lift the bag into the bin yourself.