Allegiant Air vs Frontier Airlines: fleets and facts compared
Allegiant Air (United States) and Frontier Airlines (United States) side by side: fleet size, main aircraft type, founding year, hubs and status, each from our database with its source and date. Both list Harry Reid International Airport as a hub or base.
- 124Allegiant Air fleet, as of 30 June 2026
- 165Frontier fleet, as of 30 June 2026
- 1shared hub
- United States · Hubs LAS · AZA · SFB +3 · founded 1998Active
- United States · Hubs DEN · MCO · LAS +3 · founded 1994Active
At a glance
Each fact from our database. A grey tint marks the larger value in a row; it is not a verdict.
Shared hub, outlined above: LAS.
Data last updated: Allegiant Air · Frontier Airlines
Fleet breakdown
Aircraft types as each source reports them, largest first.
Allegiant Air fleet3 types
Frontier Airlines fleet4 types
Baggage & fees compared
Human-reviewed summaries. Rules change, so check the airline's own site before you book.
Allegiant Air
Allegiant's Optional Services & Fees page sets out the following limits. Sizes and weights only; carry-on and checked bags are charged for, and charges vary by route.
- Personal item: one, free of charge, up to 8 x 14 x 18 in (20 x 35 x 45 cm).
- Carry-on bag (paid): one, up to 10 x 16 x 22 in (25 x 40 x 55 cm). No weight limit is stated.
- Checked bags (paid): up to four per passenger, each up to 80 in (203 cm) in combined length, width and height and 50 lb (22 kg). Bags of 51 to 100 lb (23.1 to 45.4 kg) are treated as overweight.
- Measurements include wheels, handles, pockets and decorations.
- Car seats, strollers, mobility aids and assistive devices are not charged as baggage; a car seat or stroller may need to be checked at the gate.
Source: Allegiant Air, "Optional Services & Fees" (baggage section), read on 24 October 2026.
Source: airline baggage page, read 2026-10-24.
Frontier Airlines
Frontier's Bag Options page lists these limits. Sizes and weights only; only the personal item is included in the base fare.
- Personal item: included on every fare. Maximum 8 in deep x 18 in wide x 14 in high. Its size is checked at boarding.
- Carry-on bag: paid extra unless included in a bundle or status benefit. Maximum 10 in deep x 16 in wide x 24 in high and under 35 lb.
- Checked bag: paid extra unless included. Maximum 62 linear inches and under 40 lb, as shown on the page on the date read.
- Frontier Elite members may bring a carry-on free. Passengers on an Elite 100k member's booking may also bring a carry-on and/or check one bag free.
- Verified active-duty military passengers may bring one carry-on and check up to two bags free, including oversized or overweight bags. This does not extend to companions.
The weight limit for checked bags shown here (under 40 lb) is lower than the 50 lb used by many US carriers, so check it against your booking. Source: Frontier Airlines, "Bag Options", read on 24 October 2026.
Source: airline baggage page, read 2026-10-24.
Search flights
Both searches open our booking partner. Fares vary by route and date, so compare the same trip on each.
We may earn a commission when you book through links on this site — this never affects the price you pay.How we earn money
Frequently asked
Which has the bigger fleet, Allegiant Air or Frontier Airlines?
Frontier Airlines has the larger published fleet. Allegiant Air 124 aircraft (Airline report, as of 30 June 2026); Frontier Airlines 165 aircraft (Airline report, as of 30 June 2026).
Is Allegiant Air cheaper than Frontier Airlines?
Fares change by route, date and demand, so neither airline is always cheaper. This page compares fleets and published facts, not fares. To check prices for a trip, search both airlines for the same dates.
Which airline is older?
Frontier Airlines was founded in 1994, Allegiant Air in 1998.
Do Allegiant Air and Frontier Airlines share a hub airport?
Yes: Harry Reid International Airport (LAS).
Are both airlines currently flying?
Yes. Both are active in our directory.