Allegiant Air Baggage Fees (2026)
Quick summary
Allegiant Air is an ultra-low-cost U.S. leisure carrier built around bare-bones base fares. Only a personal item is free — both the carry-on bag and every checked bag cost extra, and prices rise the closer you get to departure (cheapest at booking, most expensive at the airport). All bag charges are per bag, per segment, and the exact price depends on your route. Buying bags online when you book is almost always the cheapest option.
The bottom line on Allegiant Air baggage
Allegiant Air is a bare-bones leisure carrier where only the personal item is free, and both the carry-on and every checked bag cost extra, with every charge billed per bag, per segment. The trap is the connecting itinerary: an overweight or oversize surcharge is charged again on each flight, and overweight and oversize can stack on the same bag.
The cheapest path is to buy every bag online when you book, since airport prices can more than triple. Better still, fit everything into the free 8 x 14 x 18 in personal item and fly with zero bag fees, and weigh checked bags at home to stay under 50 lbs.
FlyRulebook Score
Our own 1–5 rating of Allegiant Air's baggage policy, scored from the verified data on this page. See airline rankings → · How we score →
Hidden pitfalls most travelers miss
- Every bag fee is per bag, per segment — on a connecting itinerary an overweight or oversize surcharge is charged again for each flight.
- Overweight and oversize surcharges can stack on the same bag, and airport prices can more than triple the online rate.
- Even the carry-on bag costs extra, and a printed boarding pass at the airport adds about $5 per person.
Allegiant Airbaggage allowance & fees at a glance
| 🎒 Personal item | One free personal item that must fit completely under the seat in front of you. Maximum size 8 x 14 x 18 inches (45 x 35 x 20 cm). |
| 🧳 Carry-on allowance | Carry-on bags are NOT free — a fee applies and it must be purchased. The carry-on must fit the overhead bin and stay within 10 x 16 x 22 inches (25 x 40 x 55 cm). Carry-on fees start around $10 when booking and can reach about $75 at the airport. |
| 🧳 First checked bag | Up to 50 lbs and 80 linear inches |
| 🧳 Second checked bag | From ~$18 online, up to ~$75+ at airport (varies by route) |
Allegiant Air checked bag fees
| Standard checked bag limit (no surcharge) | Up to 50 lbs and 80 linear inches |
| Checked bag (per bag, per segment) | From ~$18 online, up to ~$75+ at airport (varies by route) |
| Carry-on bag (per segment) | From ~$10 online, up to ~$75 at airport |
| Overweight 51–70 lbs (per segment) | $50 extra |
| Overweight 71–99 lbs (per segment) | $75 extra |
| Oversize (over 80 linear in, per segment) | $75 extra |
| Max checked bags | Up to 4 online (5 pieces total per person); over 99 lbs not accepted |
Excess baggage cost calculator
Estimate what Allegiant Air will actually charge for your bags — one way, typical domestic/regional route.
- Checked bag #1$18
Allegiant Air is $32 cheaper than Frontier Airlines for these bags.
Estimates only. Fees vary by route, fare type, and date — always confirm before booking.
Allegiant Air vs Frontier Airlines vs Sun Country Airlines: baggage compared
Head-to-head on the fees that actually decide the cheaper airline for bags.
| Allegiant Air | Frontier Airlines | Sun Country Airlines | |
|---|---|---|---|
| Carry-on included | $10 | — | $40 |
| 1st checked bag | $18 | $50 | $35 |
| 2nd checked bag | — | — | $45 |
| Overweight surcharge | $50 | $75 | $20 |
| Weight limit | 23 kg | 18 kg | 23 kg |
Flying Allegiant Air abroad?
Allegiant Air is a ultra-low-cost carrier based in US — if this is an international trip, a travel eSIM means you land with data already working, with no roaming bill.
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🔁 Change & cancellation
Allegiant tickets are non-refundable by default. You can cancel for a full refund within 24 hours of booking when the flight is at least 168 hours (7 days) away. The optional Trip Flex add-on lets you make one change without the standard change fee. Without Trip Flex, changes incur a per-segment fee plus any fare difference.
Allegiant Air flight delayed or cancelled?
Compensation rules follow the route, not the airline — a US-departing Allegiant Air flight delayed 3+ hours can be worth up to €600. Checking costs nothing.
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Other common fees
| Seat selection | From ~$5 (varies by seat/route) |
| Trip Flex (change protection) | Varies by route |
| Printed boarding pass at airport | ~$5 per person |
What stops you paying these fees on Allegiant Air
- An overweight bag costs +$50 here over 23 kg, each way. A scale costs about $10 — the maths on that →
- A full-size cabin bag is not free on the cheapest Allegiant Air fare, so the bag that fits under the seat matters — what size actually fits →
How to avoid extra fees
- Add every bag online at the time of booking — it is almost always the cheapest price, and waiting until the airport can more than triple the cost.
- If you can fit everything into the free personal item (8 x 14 x 18 in), you fly with zero bag fees.
- Weigh checked bags at home; staying under 50 lbs avoids the $50–$75 overweight surcharge per segment.
- Allegiant World Mastercard holders can earn priority benefits, but always compare the bag-bundle price against buying bags individually.
- Remember every fee is per bag, per segment — on a connecting itinerary an overweight or oversize surcharge is charged again for each flight, and overweight plus oversize surcharges stack on the same bag.
Allegiant Air baggage — FAQ
＋ − Does Allegiant Air charge for carry-on bags?
Yes. Only the personal item is free. A standard carry-on bag for the overhead bin costs extra — roughly $10 when booking and up to about $75 if added at the airport.
＋ − How much are checked bags on Allegiant?
Checked bag prices vary by route and when you buy them, but expect roughly $18 and up online, rising sharply at the airport. All bag fees are per bag, per segment.
＋ − Can I get a refund on an Allegiant ticket?
Tickets are non-refundable by default, but you can cancel for a full refund within 24 hours of booking if the flight is at least 7 days away. The Trip Flex add-on allows one fee-free change.
＋ − What are Allegiant's bag size and weight limits?
The free personal item is 8 x 14 x 18 in and a paid carry-on is 10 x 16 x 22 in. Checked bags are free of surcharges up to 50 lbs and 80 linear inches; 51–70 lbs adds $50, 71–99 lbs adds $75, and over 80 linear inches adds $75 — all per bag, per segment. Bags over 99 lbs are not accepted.
Sources & official policy links
Independent guide — not affiliated with Allegiant Air. Figures here reflect Allegiant Air's published US fares as of 2026-07-12.