Allegiant Air Baggage Fees

Allegiant Air is an ultra-low-cost carrier that keeps base fares low by charging separately for nearly everything — including the overhead bin. Understanding the fee structure before you book can save you $50 to $150 per round trip. The golden rule with Allegiant: pay for bags at booking, not at the airport. Airport bag fees are $75 per bag, per segment — nearly double what you’d pay by booking in advance. Fees are also charged per segment (each takeoff and landing), not per trip, so a round-trip flight counts as two segments.

• 1
  What is free on Allegiant Air? One personal item per passenger is always free. It must fit completely under the seat in front of you and cannot exceed 8 in. x 14 in. x 18 in. (20 cm x 35 cm x 45 cm). Wheelchairs, walkers, CPAP machines, strollers, car seats, a jacket/coat, a small umbrella, and a diaper bag are also free and do not count against your allowance.

  Allegiant’s official policy is clear: one personal item (purse, briefcase, small laptop bag, small backpack) is included in every ticket at no charge. The 8×14×18-inch limit is firm and includes any pockets, handles, or straps. Medical and assistive devices — including CPAP machines, walkers, canes, crutches, wheelchairs, and prosthetics — are explicitly exempt from baggage fees per Allegiant’s official disability policy and are not counted toward your carry-on or personal item limit. Service animals fly free in the cabin. These exemptions are especially important for seniors who travel with medical equipment.
• 2
  How much does a carry-on bag cost on Allegiant? Carry-on fees range from $10 to $75 per segment depending on the route and when you pay. At booking: typically $10–$50. Pre-departure via Manage Travel: $15–$70. At the airport: $75 flat per bag, per segment — the most expensive option.

  Allegiant charges for overhead bin access — unlike major carriers where a carry-on is typically included. The cost varies by route (Allegiant’s pricing tool shows exact fees for your specific airports and dates). The critical lesson: the airport price is always the most expensive. A carry-on on a round trip at $75 each way at the airport costs $150 — which may exceed the base airfare on many Allegiant routes. Carry-on size limit: 10 in. x 16 in. x 22 in. (25 cm x 40 cm x 55 cm) including wheels, handles, and pockets. If it does not fit in the overhead bin, it will be reclassified as a checked bag for an additional fee.
• 3
  How much does a checked bag cost on Allegiant? First checked bag: approximately $20–$50 when paid at booking; $15–$70 pre-departure; $75 at the airport. Second bag: $30–$50 at booking; higher at airport. Fees are per bag, per segment (each takeoff and landing). Maximum 5 checked bags per passenger. Max weight: 50 lbs; max size: 80 linear inches.

  Allegiant uses route-based dynamic pricing for checked bags, so the exact fee varies by origin and destination airport. The official baggage fee calculator at allegiantair.com lets you look up the specific fees for your route. Fees are per segment, meaning a round-trip flight with one checked bag = two segment fees. The $75 airport rate applies whether you bring a carry-on or checked bag — Allegiant’s official policy page confirms this flat rate for bags added at the airport counter.
• 4
  What are Allegiant’s overweight and oversize baggage fees? Overweight (51–70 lbs): $50 additional per segment. Overweight (71–99 lbs): $75 additional per segment. Oversize (over 80 linear inches): $75 additional per segment. These charges stack ON TOP of the base checked bag fee. If your bag is both overweight and oversize, you pay both surcharges plus the base fee.

  The stacking nature of Allegiant’s surcharges is a significant cost trap. A checked bag that weighs 65 lbs and measures 85 linear inches would incur: the base checked bag fee ($20–$75 depending on when purchased) + the overweight surcharge ($50) + the oversize surcharge ($75) = potentially $200 or more for one bag. Allegiant’s official policy confirms the 50-lb standard weight limit (not 40 lbs as some sources suggest — 40 lbs has been cited for specific routes only; verify your route at allegiantair.com). Maximum allowable weight: 99 lbs. Always weigh your checked bag on a home scale before heading to the airport.
• 5
  Are wheelchairs, walkers, and mobility aids free on Allegiant? Yes — completely free. Wheelchairs, scooters, walkers, canes, crutches, and other mobility aids are transported at no charge. They do not count against your carry-on or personal item allowance. You can gate-check mobility devices and pick them up at the jetway on arrival.

  Allegiant’s official disability policy and Contract of Carriage both confirm that mobility aids are exempt from all baggage fees under 14 C.F.R. Part 382 (DOT accessibility regulations). Mobility devices can be checked at the gate before departure or at the ticket counter. If picked up at the jetway on arrival, you have your device immediately off the plane. Allegiant’s Disabilities Team can be reached at [email protected] for specific device questions. For motorized wheelchairs and scooters, the battery may need to be removed and packaged separately per FAA safety regulations — contact Allegiant at least 48 hours in advance if you use a power wheelchair or scooter.
• 6
  Is a CPAP machine free to bring on Allegiant? Yes. CPAP machines, ventilators, respirators, and portable oxygen concentrators (POCs) are allowed as carry-on items and do not count toward your carry-on or personal item limit. They are free of charge. Notify Allegiant at least 48 hours before your flight for POCs and respiratory devices.

  Allegiant’s official Special Needs page explicitly states: “Other assistive devices, such as canes, crutches, CPAP machines, etc. that can be stowed in the aircraft cabin compliant with FAA safety regulations, will not be counted toward your one carry-on plus one personal item limit.” This means CPAP users can bring their machine in addition to a free personal item AND a paid carry-on — the CPAP is a fourth item category. CPAP machines should be placed in the overhead bin or under the seat; if unable to be stowed in the cabin safely, Allegiant will gate-check the device. Keep all CPAP water and supplies accessible and note that medications should always be in your carry-on, not checked baggage (Allegiant does not accept liability for lost or delayed medicines in checked bags).
• 7
  What is the cheapest way to add bags on Allegiant? Always add bags during your initial booking at allegiantair.com. This gives the lowest possible price. Adding bags later via Manage Travel (pre-departure) costs moderately more. Adding bags at the airport is always the most expensive option at $75/bag/segment — potentially $150/bag round trip.

  Allegiant’s own website prominently advises booking bags with tickets for the best price. Bags cannot be added retroactively during the booking process at the original price — if you decide later you need a bag, you pay the higher pre-departure rate or the $75 airport rate. Bundles (which package bags, seat selection, and other extras) can only be purchased at the time of the original booking and cannot be changed or upgraded after purchase. Also note: bags are priced per segment, per bag — not per trip. A round trip with one checked bag = two bag fees. Always use Allegiant’s bag price calculator at booking to see the exact cost for your specific route.
• 8
  Does Allegiant have any baggage fee waivers or discounts? Active-duty military, veterans, and their eligible dependents/spouses may qualify for baggage fee waivers through Allegiant Honors. Assistive device users and disabled passengers are exempt from fees on qualifying items. No general senior discount on baggage applies.

  Allegiant Honors is Allegiant’s military appreciation program providing discounts and waivers to active and reserve duty military, National Guard, veterans, spouses, and dependents with valid identification. Visit allegiantair.com/allegiant-honors for current eligibility and details. Allegiant does not currently offer a dedicated senior discount on baggage fees. However, seniors who use qualifying medical or assistive devices (CPAP, wheelchair, walker, cane) travel with those items free of charge — which can meaningfully offset total bag costs. The Allways Rewards Visa card provides complimentary priority boarding and one free beverage when you fly, but does not typically waive baggage fees the way some co-branded cards at other airlines do.
• 9
  Does Allegiant charge for bags per segment or per trip? Per segment. A segment is one takeoff and one landing. A round trip = two segments = two bag fees per bag. If you have a connecting flight, each leg is a separate segment with its own bag fee. Always multiply the per-segment fee by the number of legs in your trip to calculate total bag cost.

  This is one of the most financially important details for Allegiant travelers. Unlike some fee structures that charge per trip (one fee each way), Allegiant’s fees are explicitly per segment. For a direct round trip: 2 segments × $25 per bag = $50 total for one checked bag. For a connecting round trip: 4 segments × $25 per bag = $100 total for one checked bag. The per-segment pricing makes nonstop Allegiant flights more cost-efficient for baggage than connecting itineraries. Allegiant typically operates direct, point-to-point routes, which is one of its structural advantages over connecting itinerary airlines. Always review the total bag cost across all segments before booking, not just one-way.
• 10
  Are there other surprise fees to know about on Allegiant beyond bags? Yes: $5 per boarding pass printed at the airport (free if you print at home or use the app). Seat selection fees: $10–$24+ per seat per segment. Pets (domestic cats/dogs only in cabin): fees apply per carrier. Trip Flex cancellation protection: per person, per segment. Bundles may save money if you use all included services.

  Allegiant’s $5 boarding pass fee catches many travelers off-guard — especially seniors unfamiliar with mobile apps. The solution is free: print your boarding pass at home before you leave, or download the free Allegiant app to get a digital boarding pass. Check in opens online 24 hours before departure; check in closes 45 minutes before departure. Seat fees: if you do not pay for a seat, Allegiant assigns one randomly at no charge. Families should note that seating together cannot be guaranteed without purchasing seats. Pets: domestic cats and dogs only, in-cabin in an approved carrier, with a per-flight fee. No cargo service is offered at all — all baggage must accompany a passenger on the same flight.

Sources: allegiantair.com/baggage-1 (official: personal item free 8x14x18 in; carry-on 10x16x22 in; $15-$70 pre-departure; $75 airport flat rate; checked 50 lbs/80 linear inches; overweight $50/$75; oversize $75; strollers/carseats free; mobility aids free; per segment); allegiantair.com/faqs (official: max 5 checked bags; 99 lb absolute max; no cargo; strollers/carseats free; bundles non-refundable; CPAP not counted toward allowance); allegiantair.com/passengers-special-needs (official: CPAP/POC/ventilator free + not counted; wheelchair free; 48-hr advance notice for POC; free seat for disability 24-hr notice; [email protected]); allegiantair.com/contract-carriage (official: 14 CFR Part 382; 48-hr advance disability; 5 bag max; wheelchairs/mobility aids excepted from size limits; sports 126 in/70 lbs); allegiantair.com/popup/optional-services-fees (official: $5 boarding pass; per segment defined; pets domestic cats/dogs only); NerdWallet Dec 2025 (fee system; $75 airport confirmed; bundle analysis); LugLess Feb 16, 2026 (medical devices free; updated 2026); FinanceBuzz March 2026 (Allegiant Honors military waivers; overweight confirmed; free items list); TravelTinker Feb 9, 2026 ($10-$75 carry-on range; per-segment importance); SkySonar March 2026 (industry avg bag fee $38; ULCC context)

Sources: allegiantair.com/baggage-1 (official); allegiantair.com/popup/changed-bag-fees-policy ($75 airport flat rate); allegiantair.com/passengers-special-needs (CPAP/wheelchair free); TravelTinker Feb 2026; LugLess Feb 2026

All fees from official sources: allegiantair.com/baggage-1; allegiantair.com/popup/changed-bag-fees-policy; allegiantair.com/passengers-special-needs; allegiantair.com/popup/optional-services-fees; allegiantair.com/faqs; allegiantair.com/contract-carriage. Carry-on and checked bag ranges are route-dependent. Use Allegiant’s bag price calculator at allegiantair.com for your specific route. All fees per bag, per segment.

Use this quick reference to estimate your total baggage cost on a direct round trip (2 segments). Multiply these estimates by the number of legs in your trip if you have connections.

Round-trip estimates based on: allegiantair.com/popup/changed-bag-fees-policy ($75 airport); official booking ranges ($10-$50 carry-on; $20-$50 first checked); SkySonar March 2026 (avg $38 first bag; ULCC context)

Sources: allegiantair.com/passengers-special-needs (official: CPAP/POC/ventilator free + not counted; wheelchair free; battery removal for power devices; 48-hr advance notice; free seat 24-hr notice; [email protected]; approved POC models list; no compressed/liquid oxygen); allegiantair.com/contract-carriage (official: 14 CFR Part 382; assistive device definition includes dialysis/respirators; wheelchair excepted from size limits); allegiantair.com/baggage-1 (official: CPAP not counted; mobility aids free; canes/walkers free); LugLess Feb 2026 (CPAP/walkers/wheelchairs/prosthetics free confirmed); FinanceBuzz March 2026 (free seat for disability; 702-505-8888)

Sources: allegiantair.com/baggage-1 (official: medications in carry-on; no liability for checked medicine; Manage Travel bag addition; $15-$70 pre-departure range); allegiantair.com/faqs (official: mishandled baggage 12-hr report; lost/found form; Global Repair Group for damaged mobility devices; loaner device available; 72-hr damage claim window); allegiantair.com/how-allegiant (outdoor stairs; weather advisory; check in 2 hours before; 45-min check-in close); allegiantair.com/passengers-special-needs ([email protected]; 702-505-8888; 48-hr advance for mobility devices; gate-check regardless of stairs); TSA.gov (medications exempt from 3-1-1 liquid rule; declare at security); TravelTinker Feb 2026 (gate check drama; sizing at gate; personal item under seat enforcement)

Allow location access when prompted. Allegiant Air serves more than 100 airports across the United States, primarily smaller regional airports. Always arrive at least 2 hours before departure. Check-in closes 45 minutes before departure.