Allegiant Air Baggage Allowance 2026, Carry-on & Checked Bag Rules
Allegiant Air bare fare passengers only get one free personal item measuring up to 45 x 35 x 20 centimetres or 18 x 14 x 8 inches that must fit completely under the seat in front, and a standard carry on bag for the overhead locker costs extra on every fare type with prices being lowest when you add the bag online during booking and most expensive if you wait until the boarding gate. Checked baggage also costs extra on Allegiant with a maximum weight of 22 kilograms per bag and a size limit of 203 centimetres or 80 linear inches total, and the premium bundle includes both a carry on bag and one checked suitcase plus priority boarding.
Published on July 8, 2026 · Last verified on July 10, 2026 by Luggage Validator
9/10
Allegiant Air Baggage Policy Strictness
Very Strict
Overview
Standard baggage allowance for your selected route and fare class. All dimensions include wheels and handles.
Carry-on Bag
55 × 40 × 25 cm (22 × 16 × 10 in)
Overhead bin · Not specified
Personal Item
45 × 35 × 20 cm (18 × 14 × 8 in)
Under seat ·Not specified
Checked Baggage
No free bags
Available for a fee
Included in higher fares
Free Special Items
Items you can bring for free that do not count toward your standard baggage allowance on Allegiant Air.
Jacket / coat
Umbrella / reading material
Walking stick / crutches
Folding stroller / infant car seat
For infant passengers, checked free
Wheelchair / mobility aids
Checked free of charge
Duty-free purchases
Purchased at airport after security
Standard Economy Allowance
Quick reference for your selected route type. See below for full cabin class comparison.
| Baggage Type | Free | Max Size | Weight Limit |
|---|---|---|---|
| Carry-on Bag Overhead bin · per piece | 1 pc | 55×40×25cm 22×16×10in | Not specified |
| Personal Item Under seat · per piece | 1 pc | 45×35×20cm 18×14×8in | Not specified |
| Checked Baggage Cargo hold · piece system | No free | - | - |
Full Cabin Class Comparison
Compare allowances across all fare types and cabin classes for your selected route.
| Item | Bare Fare | Extra | Premium |
|---|---|---|---|
| Personal Item Under seat | 1 pc | 1 pc | 1 pc |
| Personal Item Size L × W × H | 45×35×20cm 18×14×8in | 45×35×20cm 18×14×8in | 45×35×20cm 18×14×8in |
| Carry-on Pieces Overhead bin access | No | 1 pc | 1 pc |
| Carry-on Size L × W × H | - | 55×40×25cm 22×16×10in | 55×40×25cm 22×16×10in |
| Carry-on Weight Per piece | - | Not specified | Not specified |
| Free Checked Bags Piece system | No | No | 1 pc |
| Checked Bag Size Max per piece | - | - | ≤ 203 cm 79.9 in |
| Checked Bag Weight Per piece max | - | - | 22 kg 49 lbs |
Recent Traveller Feedback
Booked the cheapest bare fare on Allegiant from Las Vegas to Phoenix and was glad I read the fine print beforehand because the base ticket only includes one small personal item that fits under the seat and you have to pay extra if you want to bring a regular carry on bag for the overhead bin.
Tried to bring a carry on suitcase without paying for it in advance on my Allegiant flight from Orlando and got stopped at the boarding gate where they charged me seventy five dollars to check it in which was way more expensive than if I had just added the bag during the original booking process.
75 USD
Paid a little extra for the Allegiant premium bundle on my flight to Fort Lauderdale and it was totally worth it because not only did I get a free carry on bag for the overhead bin but I also got one free checked suitcase weighing up to forty pounds plus priority boarding which saved me so much time at the airport.
Went through security at Harry Reid International Airport in Las Vegas before my Allegiant flight to Austin and the standard TSA three one one liquid rule applied just like every other US airline so I kept all my toiletries in a clear quart sized bag and everything passed through the security checkpoint completely smoothly.
Common Luggage Compatibility
Based on Allegiant Air · Economy class. Compare luggage compatibility across all fare types and cabin classes using the filters above.
| Luggage | Personal Item | Carry-on | Checked |
|---|---|---|---|
Regular Backpack | OK | OK | OK |
16" Under-seat Briefcase | OK | OK | OK |
18" Cabin Suitcase | OK | OK | OK |
Standard 20" Carry-on | Over Limit | OK | OK |
22" North American Carry-on | Over Limit | Over Limit | OK |
24" Medium Checked Suitcase | Over Limit | Over Limit | OK |
26" Mid-size Checked Suitcase | Over Limit | Over Limit | OK |
28" Large Checked Suitcase (IATA Standard) | Over Limit | Over Limit | OK |
Frequently Asked Questions
What is the free personal item size on Allegiant Air?
Every Allegiant passenger gets one personal item completely free of charge no matter which fare type they book, and this is the only bag that is actually included with the cheapest bare fare tickets.
The personal item must measure no more than 45 x 35 x 20 centimetres or 18 x 14 x 8 inches including handles, straps and pockets, and it has to fit completely under the seat in front of you during the whole flight.
Common examples of suitable personal items include a small backpack, handbag, laptop bag or briefcase, and anything larger than this official size limit will be treated as a carry on bag instead which means you will have to pay an extra fee.
How much does a carry on bag cost on Allegiant Air?
A standard carry on bag for the overhead bin is not free on Allegiant Air and you always have to pay extra for it unless it is already included in one of the higher bundle fares like the Extra or Premium package.
The official maximum size for a carry on bag is 55 x 40 x 25 centimetres or 22 x 16 x 10 inches including wheels and handles, and Allegiant does not publish a strict weight limit as long as you can safely lift the bag into the overhead locker by yourself.
Prices change a lot depending on when you add the bag because it is cheapest when you book online, more expensive at online check in and most expensive if you get to the boarding gate with an undeclared carry on where the fee can be as high as seventy five dollars.
What are the checked baggage size and weight limits on Allegiant?
Every checked bag on Allegiant Air must weigh no more than 22 kilograms or roughly 40 to 50 pounds and must not exceed 203 centimetres or 80 inches in total linear measurement when you add together the length, width and height of the suitcase.
You can check up to four bags per passenger on most Allegiant flights and each one costs extra unless you have booked a bundle fare that already includes checked baggage, and heavier or larger bags will incur additional overweight or oversized fees at the airport.
Allegiant checked bag fees follow the same pricing pattern as carry on fees where you always pay the lowest price by adding bags during your initial booking and the highest price if you wait until you arrive at the airport on your travel day.
What is the difference between Bare Fare and Premium bundle baggage on Allegiant?
The basic Bare Fare only includes one small personal item under the seat so you have to pay separately for absolutely everything else including carry on bags, checked bags and even seat selection on most flights.
The Extra bundle adds a carry on bag for the overhead bin to your booking while the Premium bundle includes both a carry on bag and one free checked suitcase plus priority boarding and other travel perks which can work out cheaper than adding each item individually.
If you are only going away for a weekend with just a small backpack then the Bare Fare can be extremely good value, but if you need to bring a proper suitcase it almost always makes sense to compare bundle prices because they often work out cheaper than paying for bags one by one.
What happens if my bag is too big at the Allegiant boarding gate?
Allegiant is well known for being quite strict about bag sizes at the boarding gate especially on busy flights, and gate agents regularly use the metal sizing frame to check whether carry on bags really fit within the official dimensions.
If your bag is too big or you try to bring a carry on without having paid for it in advance then Allegiant will take the bag from you at the gate and check it into the hold for a gate fee which is normally much higher than what you would have paid if you had just added the bag online beforehand.
The easiest way to avoid this problem is to measure your bag carefully at home before you travel and always add any bags you need during the original booking process because that is always the cheapest way to do it on ultra low cost airlines like Allegiant.
All baggage rules on this page are from the official Allegiant Air website. Last updated July 10, 2026. Before you fly, please check the official site again to make sure nothing has changed.
Help keep this data accurate. If you spot outdated baggage rules or have recent experience flying with Allegiant Air contribute your update