Allegiant Air Baggage Fees 2026 — Complete Guide
Allegiant Air runs on an ultra-low-cost model: the base fare is cheap, but virtually every bag costs extra. Unlike most US airlines, Allegiant charges for both carry-on and checked bags — the only free bag is your personal item. Here is the complete 2026 breakdown of what Allegiant charges for baggage and exactly how to keep your trip budget-friendly.
Allegiant Air Baggage Fees at a Glance
| Item | Fee | Notes |
|---|---|---|
| Personal Item | Free | Only free bag |
| Carry-On | $50 | Booked online |
| 1st Checked Bag | $50 | Booked online |
| 2nd Checked Bag | $55 | Per bag |
| 3rd Checked Bag | $150 | Per bag |
| Overweight (51–70 lbs) | $75 | Additional |
| Oversize (62+ in) | $75 | Additional |
* Fees apply per bag, each way, for bags purchased online. Standard bag limits: 50 lbs (23 kg) and 62 linear inches (length + width + height). Source: Allegiant Air baggage information — last verified June 1, 2026.
Checked Bag Fees on Allegiant Air
Allegiant charges for checked bags on every fare, and unlike most carriers the fees do not come with any free allowance. The rates below apply when you add your bags online during booking, which is always the cheapest way to pay:
- First checked bag: $50 (waived for Allegiant World Mastercard cardholders)
- Second checked bag: $55
- Third+ checked bag: $150 per bag
- Maximum weight: 50 lbs (23 kg) per bag
- Maximum size: 62 linear inches (length + width + height)
Allegiant's pricing model is built around upsells, so the fees are intentionally higher at the airport. Adding a bag at check-in or the ticket counter costs significantly more than paying online, and there is no refund if you change your mind later. Decide on your bags before you hit "book" and you will always get the lowest rate.
Because even one checked bag nearly doubles the out-of-pocket cost of a typical Allegiant ticket, it is worth comparing the fare plus bag fees against a competitor before you commit. See Allegiant's current fees on our comparison page →
Carry-On Bag Fee — $50
Here is the fee that surprises most travelers: Allegiant charges $50 for a carry-on bag. Allegiant is one of the very few US airlines — along with fellow ultra-low-cost carriers Spirit and Frontier — that charges for anything you put in the overhead bin. On American, Delta, United, and Southwest, a carry-on is included with standard fares. On Allegiant, it is a paid add-on like everything else.
⚠️ The Carry-On Trap
The $50 carry-on fee is charged per flight segment and must be paid when you book or online before your flight. Bring a full-size bag to the gate without paying, and you will be charged on the spot — and the airport rate is higher than the online rate. Allegiant gate agents use sizers on every flight, and if your bag does not fit the 22″ × 14″ × 9″ carry-on limits (including wheels and handles), it gets checked, where the checked bag fee applies on top.
The math matters here: on a round trip, a carry-on costs $100 on Allegiant — the same as checking a bag. If you need more than a personal item, pick whichever bag type fits your packing style and pay for it once, online.
Because this fee is so unusual, it is the biggest reason Allegiant's advertised fares understate the real cost of flying. Run the total through our Baggage Fee Calculator before you book to see the true price with a carry-on included.
Personal Item — Always Free
The personal item is the only bag Allegiant includes with every fare. A purse, backpack, or laptop bag that fits under the seat in front of you costs nothing — no matter which fare you book. Allegiant's personal item limit is roughly 16″ × 15″ × 7″, and it is enforced with a sizer at the gate, so measure before you travel.
✅ The Key Money-Saving Tip: Fly Personal-Item-Only
- Save $100+ per round trip: Skipping the $50 carry-on and $50+ checked bag fees each way is the single biggest discount on an Allegiant ticket.
- Pack a 3–5 day wardrobe: Roll clothes, wear your bulkiest items on the plane, and use packing cubes to fit more in a backpack.
- Use travel-size toiletries: A week's worth fits easily in a personal item with a little planning.
- Check dimensions at home: If it fits the sizer at home, it fits at the gate — no last-minute fees.
If your personal item is oversized at the gate, you will be charged the carry-on fee — so do not push the limit. A bag that fits under the seat with room to spare is the difference between a truly cheap Allegiant fare and one that costs as much as a legacy carrier.
Oversized & Overweight Bag Fees
Allegiant charges flat premiums for bags outside the standard 50 lb / 62-inch limits. These fees are in addition to the regular checked bag fee:
- Overweight (51–70 lbs): $75 additional
- Oversized (62+ linear inches): $75 additional
- Bags over 80 inches or 100 lbs: Not accepted as checked baggage
A bag that is both overweight and oversized pays both fees. For example, a 55-lb bag measuring 63 linear inches would cost $50 (first bag) + $75 (overweight) + $75 (oversize) = $200 each way on top of your fare. Weigh and measure your bag at home before heading to the airport — a luggage scale costs about $10 and easily avoids a $75 fee.
How to Save on Allegiant Air Baggage Fees
Best Ways to Get Free Bags on Allegiant
- Get the Allegiant World Mastercard: The cardholder gets 1 free checked bag on every Allegiant flight — a $50-per-flight benefit that pays for itself on your first round trip. The card also earns miles on Allegiant purchases and waives some fees.
- Fly personal-item-only: The personal item is the one bag Allegiant never charges for. A well-packed backpack turns a round trip with zero baggage fees — a saving of $100–$200 versus traveling with bags.
- Prepay online at booking: Allegiant's online baggage rates are the lowest available. Adding a bag at check-in or the airport costs more, and the gap is larger on Allegiant than on most airlines. Decide on bags when you book.
- Weigh and measure at home: The $75 overweight and $75 oversize fees stack with the standard bag fee. A $10 luggage scale and a tape measure keep you inside the limits.
- Compare before you book: On routes where Allegiant competes with legacy carriers, the base fare may be lower but the bag fees higher. A checked bag on Allegiant costs $50 — the same as American or Delta — but Allegiant adds the $50 carry-on fee that others include for free.
Compare Allegiant With Other Airlines
Allegiant's $50 checked bag fee is competitive with the legacy carriers, but the $50 carry-on fee is what separates it from the pack. Before you book, check how Allegiant stacks up against the competition — and calculate exactly what your trip will cost in baggage fees.
Frequently Asked Questions
Does Allegiant Air charge for carry-on bags?
Yes. Allegiant charges $50 for a carry-on bag, paid online before your flight. It is one of the few US airlines that charges for carry-ons — only the personal item is free on Allegiant.
How much is a checked bag on Allegiant in 2026?
The first checked bag costs $50 when booked online, the second costs $55, and each additional bag costs $150. Allegiant World Mastercard cardholders get 1 free checked bag per flight. Airport rates are higher than online rates.
Is the personal item really free on Allegiant?
Yes. The personal item — roughly 16″ × 15″ × 7″ — is included free with every Allegiant fare and is the only bag that never costs extra. Just make sure it fits under the seat in front of you.
Is the Allegiant World Mastercard worth it?
If you check a bag on Allegiant more than once a year, yes. The card gives you 1 free checked bag per flight — a $50 value each way — plus miles on Allegiant purchases. One round trip with a checked bag covers the card's annual fee.
What is Allegiant's bag size limit?
Checked bags must not exceed 62 linear inches (length + width + height) and 50 lbs (23 kg). Carry-ons must fit within 22″ × 14″ × 9″. Bags over 80 linear inches or 100 lbs are not accepted as checked baggage.
How much is an overweight bag on Allegiant?
Bags weighing 51–70 lbs incur a $75 overweight fee on top of the regular checked bag fee. An oversized bag (62+ linear inches) incurs a separate $75 fee. A bag that is both overweight and oversized pays both.
The Bottom Line
Allegiant's baggage fees are simple but aggressive: $50 for a carry-on, $50 for the first checked bag, $55 for the second, and $150 for each additional bag — with the personal item as the only free bag. The best ways to save are the Allegiant World Mastercard (1 free checked bag per flight), prepaying online at booking, and flying personal-item-only, which eliminates baggage fees entirely. Weigh and measure your bags at home to avoid the $75 overweight and oversize fees. Check Allegiant's current rates →