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| Carry-on (free: no — paid add-on) | 22" x 16" x 10" |
| Personal item (always free) | 16" x 15" x 7" |
| Carry-on weight limit | No published limit |
On Allegiant, only the personal item is free — a full-size carry-on is a paid add-on, and it's cheaper to add it during booking than at the gate or on board.
Allegiant's carry-on limit is 22" x 16" x 10". There's no published weight limit for the carry-on bag.
Yes — only the personal item is free. A full-size carry-on is a paid add-on, and it's cheaper to add it during booking than at the gate or on board.
Allegiant's personal item limit is 16" x 15" x 7" — it must fit under the seat in front of you, and it's always free.
Allegiant does not publish a weight limit for the carry-on bag — size is the main constraint here.