Airline vs airline · Checked October 29, 2026
Alaska vs Allegiant: baggage rules compared
Carry-on, personal item, checked bag and check-in deadlines for Alaska Airlines and Allegiant Air, from each airline's own website.
The short version
- Allegiant's carry-on limit is roomier (22 x 16 x 10 in) than Alaska's (22 x 14 x 9 in), about 19% more space.
- Alaska includes a carry-on, while Allegiant charges for a full-size carry-on on its cheapest fare.
| Alaska | Allegiant | |
|---|---|---|
| Carry-on size | 22 x 14 x 9 in / about 56 x 36 x 23 cm | 22 x 16 x 10 in / 55 x 40 x 25 cm |
| Carry-on weight | No published limit | No published limit |
| Carry-on on the cheapest fare | Included | Paid extra |
| Personal item | No size published, must fit under the seat | 18 x 14 x 8 in / 45 x 35 x 20 cm |
| Checked bag size | 62 in (157 cm) in total | 203 cm (80 in) in total |
| Checked bag weight | 23 kg (50 lb) per bag in economy | 22 kg (50 lb) per bag in economy, 45 kg (100 lb) max for any bag |
| Online check-in opens | 24 hours before | 24 hours before |
| Bag drop closes | 40 min before | 45 min before |
| At the gate by | Not published | 30 min before |
| Power banks | Standard 100 Wh / 160 Wh rules | Standard 100 Wh / 160 Wh rules |
Carry-on that fits both
21.7 x 14.2 x 9.1 in (55 x 36 x 23 cm)
The smallest limit on each side
Personal item that fits both
Under the seat
One airline doesn't publish a size
Flying both on one trip? The trip checker shows which airline sets each limit, and the gate card keeps the rules on your phone.
Will your bag fit?
Measure with wheels, handles and pockets included. The order of the sides doesn't matter.
Questions people ask
Is the Alaska carry-on bigger than Allegiant?
Allegiant's carry-on limit is roomier (22 x 16 x 10 in) than Alaska's (22 x 14 x 9 in), about 19% more space.
What carry-on size fits both Alaska and Allegiant?
A bag no bigger than 21.7 x 14.2 x 9.1 in (55 x 36 x 23 cm) fits both carry-on limits. Check weight limits too.