About Frontier Airlines
Frontier Airlines is a low-cost United States airline headquartered in Denver, CO. The carrier operates under the IATA designator F9 and the ICAO designator FFT; air-traffic controllers address its flight crews on the radio with the callsign "FRONTIER FLIGHT". The airline was founded in 1994 and currently operates a fleet of approximately 152 aircraft.
Within the US air-travel ecosystem, Frontier Airlines sits in the "Low-cost" segment. Low-cost carriers focus on point-to-point flying, lean operations, and unbundled fares. They have re-shaped fare floors in many US markets and are often the price-setter on routes where they overlap with the majors.
Codes & identifiers
| Legal / brand name | Frontier Airlines |
|---|---|
| IATA code | F9 |
| ICAO code | FFT |
| Radio callsign | FRONTIER FLIGHT |
| Category | Low-cost |
| Headquarters | Denver, CO |
| Year founded | 1994 |
| Fleet size | 152 aircraft |
| Official website | www.flyfrontier.com |
Hub & focus airports
The airports below are listed as hubs or focus cities for Frontier Airlines. From these airports the carrier operates the densest schedule of nonstop departures, holds the most gate space, and typically supports the broadest range of international or long-haul service.
| Airport | City | State | IATA | Class |
|---|---|---|---|---|
| Denver International Airport | Denver | CO | DEN |
Large hub |
| Orlando International Airport | Orlando | FL | MCO |
Large hub |
| Harry Reid International Airport | Las Vegas | NV | LAS |
Large hub |
| Philadelphia International Airport | Philadelphia | PA | PHL |
Large hub |
| Hartsfield Jackson Atlanta International Airport | Atlanta | GA | ATL |
Large hub |
Booking & service notes
Schedules, fares, and aircraft assignments for Frontier Airlines change frequently, sometimes weekly. The data on this page is intended as a stable reference for codes, headquarters, fleet scale, and hub list; for live availability, fare class rules, baggage policies, and seat selection, always consult the carrier's own booking system at www.flyfrontier.com. When a flight is operated under Frontier Airlines's code but flown by a regional partner, the operating carrier is normally disclosed on the booking page; this distinction matters for elite-status benefits and, in rare cases, for irregular-operations rebooking.