Frontier Airlines (F9) airline code, fares and API for travel agents
- IATA F9
- ICAO FFT
- Low-cost
Search Frontier Airlines (F9) fares
Frontier Airlines airline codes
- IATA code
- F9
- ICAO code
- FFT
- Main hub
- Denver (DEN)
- Alliance
- Not in a global alliance
- Airline type
- Low-cost
- Country
- United States
About Frontier Airlines
Frontier Airlines is an ultra-low-cost carrier from Denver, Colorado. The model is simple: a basic fare that covers the seat, with bags, seat selection and other extras sold separately or packaged into bundles. Denver is the main base, and the airline also has a sizeable presence in cities such as Orlando, Las Vegas, Atlanta, Philadelphia and Miami. Most routes are domestic US leisure and visiting-friends markets, with some flying to Mexico, the Caribbean and Central America. Frontier is not part of any global alliance, and many routes run only on certain days of the week, which matters when you build itineraries.
In the IATA.co booking portal, or through the flights API if you are integrating search into your own product, you can check live availability and pay from your prepaid balance. Frontier fares appear in your search results whenever our flight suppliers offer them for your route and dates. What is included varies a lot by bundle, so always open the fare rules shown with the result before you confirm on behalf of a customer.
Frontier Airlines airline codes explained
Frontier Airlines uses the two-letter IATA airline code F9 and the three-letter ICAO code FFT. The IATA code F9 is the one shown on tickets, fare displays and booking screens, while the ICAO code FFT is used in air traffic control and flight planning.
Frontier Airlines is a low-cost carrier, based in United States, operating mainly from Denver (DEN). It is not part of a global airline alliance.
Booking Frontier Airlines fares as a travel agent
Travel agents book Frontier Airlines fares on IATA.co without their own IATA accreditation. Activate an agency account, top up a prepaid balance, then search live F9 fares in the booking portal: the price, baggage and fare rules are shown with each offer before you confirm, and the amount is deducted from your balance. Frontier Airlines results appear whenever our flight suppliers return them for your route and dates, so what you can book follows live supplier content rather than a direct airline deal.
Search Frontier Airlines (F9) through the flights API
Developers and agencies can run the same Frontier Airlines search from their own site, app or back office through the IATA.co flights API. Filter a search by the carrier code F9 and read the fares back as JSON, then book from the same prepaid balance. See the flights API and the API docs for the full reference.
GET /api/v1/flights/search?origin=DEN&destination=DXB&date=2026-12-14&carrier=F9
Host: iata.co
Authorization: Bearer YOUR_API_KEY
HTTP/1.1 200 OK
{
"carrier": "F9",
"flights": [
{ "airline": "F9", "from": "DEN", "to": "DXB", "price": 148.20 }
]
}Example request and response. Carrier codes filter the search; the full reference is unlocked with your API key.
Frontier Airlines at a glance
- Ultra-low-cost carrier with its main base in Denver
- Unbundled fares with bags and seats sold as extras or bundles
- Mostly US domestic, plus Mexico, the Caribbean and Central America
- Not a member of any global alliance
Frontier Airlines (F9) questions
Frontier Airlines' two-letter IATA airline code is F9, and its three-letter ICAO code is FFT. The IATA code is the one you see on tickets, timetables and booking screens.
Frontier Airlines' ICAO code is FFT. ICAO codes are three letters and are used in air traffic control and flight planning, while the two-letter IATA code F9 is used in ticketing and reservations.
Yes. On IATA.co you book Frontier Airlines fares through the platform from a prepaid balance, so you do not need your own IATA accreditation. Frontier Airlines fares appear in your results whenever our flight suppliers offer them for your route and dates.
It depends on what our flight suppliers return. Whenever Frontier Airlines content — including NDC fares — is offered by a connected supplier for your route and dates, it appears in your F9 search results and can be booked from your balance or through the flights API.
Yes. Frontier is an ultra-low-cost carrier, which means the basic fare covers the seat and most other items are optional extras.
It depends on the fare or bundle you book. The baggage conditions are shown with the fare rules before you confirm.
Frontier fares appear in your search results whenever our flight suppliers offer them for your route and dates. You can search in the portal or through the flights API.
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