Ultra-low-cost carrier

Frontier Airlines: Hubs, Fleet & What Makes It Different

Frontier's ultra-low-cost model unbundles nearly every part of the fare, running one of the youngest, most fuel-efficient all-Airbus fleets in the US, easily spotted by the animal on every tail.

At a glance

Frontier Airlines Snapshot

Main HubDenver International (DEN)
AllianceNo alliance (ultra-low-cost carrier)
Founded1994
Signature FleetAirbus A320neo family

Where Frontier Airlines Flies

Frontier operates a point-to-point network centred on Denver International Airport (DEN), with a mix of domestic US leisure routes and an expanding set of connections to Mexico, Central America and the Caribbean. As an ultra-low-cost carrier, its route map tends to shift more frequently than legacy airlines, chasing seasonal leisure demand.

Fleet & Onboard Experience

Frontier flies an all-Airbus A320neo-family fleet (A320neo and A321neo), among the youngest and most fuel-efficient in the US domestic market. Every aircraft carries a different animal on its tail, a long-running branding signature for the airline. Seating is Economy-only, with optional extra-legroom rows sold separately.

Frontier Airlines aircraft in flight
Why fly Frontier Airlines

What Sets Frontier Airlines Apart

Baggage & Check-In

Because Frontier is an ultra-low-cost carrier, carry-on bags and checked bags are priced separately from the base fare and should be added during booking for the lowest cost; adding them at the airport typically costs more. Online check-in via flyfrontier.com or the app opens 24 hours before departure.

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Good to know

Frequently Asked Questions

Is Frontier Airlines part of an airline alliance?

No, Frontier is an independent ultra-low-cost carrier and is not part of a global airline alliance.

What is Frontier Airlines' main hub?

Frontier's largest base of operations is Denver International Airport (DEN).

Does Frontier Airlines charge for carry-on bags?

Yes, on most fares carry-on and checked bags are priced separately from the base ticket; check the fare rules when booking.

What aircraft does Frontier Airlines fly?

Frontier operates an all-Airbus A320neo-family fleet, including the A320neo and A321neo.

Why do Frontier planes have animals on the tail?

It's a long-standing branding tradition — each Frontier aircraft features a different animal illustration on its tail fin.

When does Frontier Airlines online check-in open?

Online check-in typically opens 24 hours before scheduled departure.

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