Allegiant Air allows a carry-on up to 22 x 16 x 10 in, measured including wheels and handles. Put your own bag's measurements in below — it opens with Allegiant Air's own limit filled in.
| Carry-on maximum | 22 x 16 x 10 in (including wheels and handles) |
| Personal item | 18 x 14 x 8 in |
| Cabin weight limit | None published |
| Is the carry-on free? | No — Allegiant Air charges for it |
| If it does not fit | Airport bag fees apply to oversized personal items and to oversized or excess carry-ons. |
Allegiant CHARGES for the full-size carry-on. Only the personal item is free, and buying bags in advance is cheaper than at the airport.
Measurements include all exterior dimensions — wheels, handles, pockets and decorations.
Allegiant Air's 22 x 16 x 10 in works out to about 3520 cubic inches (57.7 litres) of cabin allowance, which ranks 5 of 22 among the airlines we have verified, about 19% more than the median carrier.
No other airline in our set publishes exactly 22 x 16 x 10 in, so a bag bought specifically for Allegiant Air is not automatically safe elsewhere — check before you fly a different carrier.
4 of the airlines we track allow a larger bag and 17 allow less, so a bag sized to Allegiant Air clears roughly 82% of the carriers here.
Common bag sizes measured against Allegiant Air's published limit. Every figure includes wheels and handles, which is where most bags lose.
| Bag | Size | On Allegiant Air | Why it matters |
|---|---|---|---|
| Cabin-max spinner | 22 × 14 × 9 in | Only just — 0 in spare | The standard US carry-on, sold as “22-inch” |
| Compact 21-inch | 21 × 14 × 9 in | Fits, 1 in spare | A common step down |
| European cabin bag | 21.7 × 15.7 × 7.9 in | Only just — 0.3 in spare | Sized to 55 x 40 x 20 cm |
| Underseat tote | 17 × 13 × 8 in | Fits, 2 in spare | Typical personal-item size |
| Oversized “carry-on” | 24 × 16 × 10 in | Too big by 2 in | Sold as carry-on, larger than most limits |
If it does not fit, the bag gets checked — and on Allegiant Air a first checked bag costs $20–$75 each way. On a return trip that is roughly $40–$150 for a bag you meant to carry on.
Allegiant CHARGES for the full-size carry-on. Only the personal item is free, and buying bags in advance is cheaper than at the airport.
Allegiant Air allows a personal item up to 18 x 14 x 8 in alongside the 22 x 16 x 10 in carry-on. Only the personal item is free — the overhead bag is charged, so travelling on the under-seat allowance alone is how you fly Allegiant Air without paying for baggage.
Allegiant Air allows a carry-on up to 22 x 16 x 10 in, measured including wheels and handles. Measurements include all exterior dimensions — wheels, handles, pockets and decorations.
Allegiant CHARGES for the full-size carry-on. Only the personal item is free, and buying bags in advance is cheaper than at the airport.
Airport bag fees apply to oversized personal items and to oversized or excess carry-ons.
Allegiant Air publishes no cabin weight limit for the main carry-on on most fares, though staff can still refuse a bag you cannot lift into the locker yourself.
Up to 18 x 14 x 8 in. Every Allegiant passenger gets one personal item free; it must fit completely under the seat in front of you.
Yes. Allegiant Air measures the bag including wheels, handles and any external pockets, which is why a bag sold as “22 inch” can still measure over.