G4 · United States · Ultra low-cost

Allegiant Air Carry-On Rules 2026 22 x 16 x 10"

By Caden Sorenson Updated April 22, 2026 Sourced from the official Allegiant Air policy

Exact Allegiant Air carry-on dimensions, weight limits, and fees for 2026.

Quick answer

Allegiant Air carry-on bags can be up to 22 x 16 x 10" (56 x 41 x 25 cm), with no published weight limit, and a carry-on fee starting at $35.

Carry-on size: up to 22 x 16 x 10" (56 x 41 x 25 cm)
Weight limit: no published weight limit
Carry-on fee: from $35
Personal item: up to 16 x 15 x 7", free on every fare
Gate-check risk: High
Last verified: April 22, 2026

Allegiant Air maximum carry-on dimensions, including wheels and handles.

Carry-On Bag

Max dimensions (in): 22 x 16 x 10"
Max dimensions (cm): 56 x 41 x 25 cm
Weight limit: No published limit
Fee: From $35
Gate-check risk: High

Carry-on bags are not free. Fees vary by when you purchase, cheapest at booking and most expensive at the gate. Only the personal item is included.

Personal Item

Max dimensions (in): 16 x 15 x 7"
Max dimensions (cm): 41 x 38 x 18 cm
Included: Yes, free

Included free. Must fit under the seat in front of you.

See checked bag fees & more

Allegiant Air carry-on dimensions and bag size

The maximum Allegiant Air carry-on size is 22 x 16 x 10 inches, which works out to 56 x 41 x 25 cm. These measurements include wheels, handles, and any external pockets. Gate sizers on Allegiant Air match the published limits closely, so a bag marketed as "22 inch" can fail if its wheels push the total past 22 inches. Always measure your bag packed, not empty.

Allegiant Air carry-on weight limit

Allegiant Air does not publish a specific carry-on weight limit for domestic travel. The operational rule is that you must be able to lift the bag into the overhead bin without help. Very heavy bags can still be refused at the gate, and on some regional aircraft the crew may ask you to check an overweight bag as a courtesy.

Does Allegiant Air charge for carry-on bags?

Yes. Allegiant Air charges for carry-on bags on most fares, starting at around $35 when added at booking. Fees climb at every stage: online, airport kiosk, ticket counter, gate. The personal item stays free on every fare. Basic Economy fares on Allegiant Air are the ones where carry-on fees apply most aggressively, since the fare excludes the overhead-bin bag by default.

What bags fit as a Allegiant Air personal item

Common bag types compared against the Allegiant Air personal item limit. Sizes are typical retail dimensions and vary by brand.

Bag type	Typical size	On Allegiant Air
Standard backpack Everyday daypack, laptop backpack	18 x 13 x 8"	Too big
Tote bag Canvas or leather tote	15 x 14 x 5"	Fits
Laptop bag Messenger or slim briefcase	16 x 12 x 4"	Fits
Small duffel Gym or weekender	18 x 11 x 11"	Too big
Purse Handbag or crossbody	12 x 10 x 5"	Fits
Under-seat roller Mini wheeled bag	16 x 14 x 8"	Too big

Allegiant Air carry-on by fare class

Fare	Carry-on	Personal item	Notes
Base fare	Not included	Included	Only the personal item is included. Carry-on is a paid add-on.
Bundles (Bare, Deluxe, Total)	Included	Included	Bundled fares can include carry-on, checked bag, and seat selection. Contents vary by route.

Allegiant Air overhead bin size by aircraft

All-Airbus A320 family fleet. Carry-on max is 22 x 16 x 10 inches including wheels, handles, and decorations. Personal item max is 18 x 14 x 8 inches and must fit under the seat. Both sizes are enforced at the gate.

Avoiding gate-check on Allegiant Air

Add your carry-on at booking for the lowest price. Fees rise as you move from booking to online check-in to the airport counter to the gate. Priority boarding can be purchased separately and helps lock in overhead space.

What counts as a personal item on Allegiant Air

Allowed

Small backpack
Purse
Laptop bag
Diaper bag

Counts as a second carry-on

A second roller bag
Any item larger than 18 x 14 x 8

Common Allegiant Air carry-on mistakes

Thinking the personal item is unrestricted. Allegiant checks the 18 x 14 x 8 sizer and charges if it does not fit.
Waiting to buy a carry-on at the gate, which is the most expensive tier.
Assuming bundles always include a carry-on. Read the bundle contents before assuming.

What happens if your bag does not fit on Allegiant Air

If the flight is full, agents may valet roller bags at the jet bridge. If your bag was not pre-paid, Allegiant collects the carry-on fee before tagging.

Allegiant Air vs Frontier Airlines carry-on

Allegiant and Frontier are both ULCCs that charge for carry-ons, but Allegiant flies point to point from small leisure markets on a smaller network, while Frontier runs a national hub-light model. Frontier's 24 x 16 x 10 carry-on box is taller than Allegiant's 22 x 16 x 10, and Frontier enforces a 35 lb weight limit that Allegiant does not publish.

See Frontier Airlines carry-on size

Allegiant Air checked baggage fees

Domestic economy

1st bagNot published

2nd bagNot published

Long-haul / international

1st bagNot published

Weight limit50 lb

Linear dim80 in

Overweight & oversize

51–70 lb$50

71–100 lb$75

63–80 in$75

Allegiant uses fully dynamic pricing. Checked bag fees range from $18 to $50 each way depending on route, season, and when you pay. At the airport, fees jump to $50-$70 per bag. Allegiant prices carry-on and checked bags separately per route; use the bag price calculator at allegiantair.com for your specific flight. Max bag 50 lb / 80 linear inches.

Ways to skip the Allegiant Air checked bag fee

Pack carry-on only. Confirm your bag fits the Allegiant Air carry-on size.
Use a Allegiant Air co-branded credit card. These typically waive the first checked bag fee for the cardholder and companions.
Earn elite status. Mid-tier and above usually waive one or two bags per direction.
Book a higher fare. Premium Economy, Business, and First usually include 1 to 2 checked bags.

Allegiant Air special items & sports equipment

Ski / snowboard: Not published
Golf clubs: Not published
Bicycle: $75
Pet in cabin: $50
Pet as cargo: Not published

Musical instruments: Small instruments fit as a personal item (free). Larger instruments must be checked at standard bag rates or purchased an extra seat.

Ski, golf, and bike bags are treated as standard checked bags on Allegiant. Oversize/overweight charges apply if they exceed 50 lb or 80 linear inches. Pet-in-cabin is $50 each way.

Allegiant Air basic economy restrictions

Base Fare Allegiant Air's lowest fare tier

Carry-on allowed: No
Personal item allowed: Yes
Checked bag surcharge: Not published

Personal item only (carry-on and checked bag cost extra)
Seat selection costs extra
No changes without fee
All extras priced à la carte

Frequently asked questions

What is the Allegiant Air carry-on size limit?

Allegiant Air allows carry-on bags up to 22 x 16 x 10" (56 x 41 x 25 cm), including wheels, handles, and any external pockets. There is no published weight limit, but you must be able to lift the bag into the overhead bin unassisted.

What are the Allegiant Air carry-on dimensions in cm?

The Allegiant Air carry-on size limit in centimeters is 56 x 41 x 25 cm. In inches that converts to 22 x 16 x 10". Both measurements include wheels, handles, and external pockets.

What is the Allegiant Air carry-on weight limit?

Allegiant Air does not publish a carry-on weight limit for domestic travel. The operational rule is that you must be able to lift the bag into the overhead bin without help. Very heavy bags can still be refused at the gate.

Does Allegiant Air charge for carry-on bags?

Yes. Allegiant Air charges for carry-on bags on most fares, starting around $35 when added at booking. Fees climb at each stage, from online to kiosk to gate. The personal item stays free on every fare. Basic Economy is the fare where the carry-on fee applies most aggressively.

What is the Allegiant Air personal item size?

The personal item on Allegiant Air must fit within 16 x 15 x 7" (41 x 38 x 18 cm) and slide fully under the seat in front of you. Included free. Must fit under the seat in front of you.

Will my bag be gate-checked on Allegiant Air?

Allegiant Air currently has a high gate-check risk based on our review of boarding policies and traveler reports. Plan on your carry-on being sized at the gate and be prepared to pay if it does not fit the sizer.

Can I bring a carry-on on Allegiant Air Base Fare?

No. Allegiant Air Base Fare passengers are limited to one personal item that fits under the seat. A full-size carry-on either is not allowed or costs an extra fee.

Does a 22-inch suitcase fit as a Allegiant Air carry-on?

Usually yes. A standard 22 x 14 x 9 inch carry-on suitcase fits within the Allegiant Air carry-on limit of 22 x 16 x 10". Confirm your specific bag measures under the limit with wheels and handles included.

Does a backpack count as a personal item on Allegiant Air?

A standard daypack (roughly 18 x 13 x 8 inches) usually fits within the Allegiant Air personal item limit of 16 x 15 x 7". The bag must slide fully under the seat in front of you. Oversized hiking or travel backpacks will not fit and count as a carry-on.

Does Allegiant Air weigh personal items?

Allegiant Air does not weigh personal items. The only requirement is that the bag fits fully under the seat in front of you. If it does not fit, gate agents may ask you to move it to the overhead bin, which counts as a carry-on.

How much does a checked bag cost on Allegiant Air?

Allegiant Air checked bag fees vary by route and fare class. Check the airline's website for current pricing.

What are the Allegiant Air overweight and oversize bag fees?

Allegiant Air charges $50 for bags weighing 51 to 70 lb, $75 for 71 to 100 lb, and $75 for bags measuring 63 to 80 linear inches. Bags over 100 lb or 80 inches are generally refused.

Flying Allegiant Air out of these airports?

Check terminal layouts, connection times, and layover tips for major Allegiant Air hubs and focus cities.

Allegiant Air head-to-head comparisons

In-depth comparisons between Allegiant Air and another carrier, covering bags, seats, on-time performance, routes, and loyalty.

Helpful guides

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Sources & verification

Last verified 2026-04-22 against the official Allegiant Air policy at https://www.allegiantair.com/optional-services . Airlines change their rules without notice, so always confirm with Allegiant Air before flying. See our research methodology.