Frontier Airlines

Q: What are Frontier Airlines' codes?

Frontier's IATA code is F9 , its ICAO code is FFT , and its callsign is FRONTIER FLIGHT .

F9 FFT

Frontier Airlines is a US low-cost airline based in Denver that flies across the United States, Mexico, the Caribbean and Latin America. This guide covers its bases, fleet, seats and bundles, baggage, check-in, Frontier Miles and airport transportation.

165
Aircraft: 100
Destinations: DEN, ATL, MCO
Hubs

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Where you land

Frontier Airlines airports

Frontier does not run a traditional hub-and-spoke network: many routes fly point to point between leisure and large cities. Check the airport on your ticket before you book a transfer, especially in cities with more than one airport such as Chicago.

Denver International Airport Hub

DEN · Denver

Frontier's headquarters city and long-standing home base. Frontier flights use Concourse A.

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Hartsfield-Jackson Atlanta International Airport Hub

ATL · Atlanta

Frontier's largest airport by scheduled seats in 2026, with nearly 40 destinations including Mexico and the Caribbean.

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Orlando International Airport Hub

MCO · Orlando

A major base for leisure routes and the gateway for Frontier's new flights to Colombia.

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Hollywood Burbank Airport

BUR · Burbank

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Baltimore/Washington International Thurgood Marshall Airport

BWI · Baltimore

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Charleston International Airport

CHS · Charleston

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Charlotte Douglas International Airport

CLT · Charlotte

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Cancún International Airport

CUN · Cancún

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Ronald Reagan Washington National Airport

DCA · Washington

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Dallas Fort Worth International Airport

DFW · Dallas

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Detroit Metropolitan Wayne County Airport

DTW · Detroit

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La Aurora International Airport

GUA · Guatemala City

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George Bush Intercontinental Airport

IAH · Houston

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Indianapolis International Airport

IND · Indianapolis

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Jacksonville International Airport

JAX · Jacksonville

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Harry Reid International Airport

LAS · Las Vegas

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Los Angeles International Airport

LAX · Los Angeles

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LaGuardia Airport

LGA · New York

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Sangster International Airport

MBJ · Montego Bay

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Chicago Midway International Airport

MDW · Chicago

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Miami International Airport

MIA · Miami

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Minneapolis–Saint Paul International Airport

MSP · Minneapolis

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Lynden Pindling International Airport

NAS · Nassau

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Oakland San Francisco Bay Airport

OAK · Oakland

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Chicago O'Hare International Airport

ORD · Chicago

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Palm Beach International Airport

PBI · West Palm Beach

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Philadelphia International Airport

PHL · Philadelphia

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Phoenix Sky Harbor International Airport

PHX · Phoenix

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Punta Cana International Airport

PUJ · Punta Cana

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Puerto Vallarta International Airport

PVR · Puerto Vallarta

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Raleigh-Durham International Airport

RDU · Raleigh

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Reno-Tahoe International Airport

RNO · Reno

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Southwest Florida International Airport

RSW · Fort Myers

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El Salvador International Airport Saint Óscar Arnulfo Romero y Galdámez

SAL · San Salvador

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Ramón Villeda Morales International Airport

SAP · San Pedro Sula

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San Antonio International Airport

SAT · San Antonio

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Las Américas International Airport

SDQ · Santo Domingo

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San Francisco International Airport

SFO · San Francisco

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San José Mineta International Airport

SJC · San Jose

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Los Cabos International Airport

SJD · San José del Cabo

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Juan Santamaría International Airport

SJO · San José

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Luis Muñoz Marín International Airport

SJU · San Juan

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Salt Lake City International Airport

SLC · Salt Lake City

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Sacramento International Airport

SMF · Sacramento

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John Wayne Airport

SNA · Santa Ana

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St. Louis Lambert International Airport

STL · St. Louis

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Princess Juliana International Airport

SXM · Simpson Bay

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Tampa International Airport

TPA · Tampa

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Other bases

Chicago–Midway, Chicago–O'Hare, Dallas/Fort Worth, Las Vegas, Miami, Philadelphia, Phoenix, Tampa, San Juan, Cincinnati, Cleveland and Trenton.

The airline

About Frontier Airlines

Schedules, aircraft assignments, terminals and fare rules can change. Confirm operational details directly with Frontier Airlines before travel.

Official name: Frontier Airlines, Inc.
Callsign: FRONTIER FLIGHT
Country: United States
Founded: 1994
Parent company: Frontier Group Holdings, Inc.
Head office: Denver, Colorado, United States
Alliance: None
Frequent-flyer program: Frontier Miles
Official website: flyfrontier.com

Frontier Airlines is a US low-cost airline founded in 1994 and headquartered in Denver, Colorado. It is owned by Frontier Group Holdings, Inc., which is listed on Nasdaq, and is not a member of an airline alliance.

Denver International Airport is its home base, and Atlanta and Orlando are now among its largest operations. Frontier also has crew bases in Chicago, Dallas/Fort Worth, Las Vegas, Miami, Philadelphia, Phoenix, Tampa, San Juan, Cincinnati, Cleveland and Trenton. Many of its routes fly point to point rather than through a single hub. Together they serve around 100 destinations in the United States, Mexico, the Caribbean and Central America, and service to Colombia is planned from December 2026.

The fleet of about 165 aircraft is all Airbus, made up of A320neo, A320, A321 and A321neo jets.

Network

Where Frontier Airlines flies

Routes and frequencies change often, and many routes run only a few times a week or seasonally. Check the current schedule before you plan a trip.

United States

A broad domestic network linking large cities with leisure destinations such as Florida, Las Vegas and Phoenix.

Mexico

Flights to Cancún from many US cities, plus seasonal flights to Los Cabos and Puerto Vallarta.

Caribbean

San Juan, Punta Cana, Santo Domingo, Montego Bay and other islands.

Central and South America

Guatemala City, San Salvador, San Pedro Sula and San José (Costa Rica), with service from Orlando to Medellín, Bogotá and Cartagena planned from December 2026, subject to government approval.

Aircraft

Frontier Airlines fleet

Frontier flies an all-Airbus fleet of single-aisle jets. The aircraft shown at booking is not guaranteed until departure.

Airbus A321neo and A321

The largest aircraft in the fleet, used on busier routes.

Airbus A320neo and A320

Used across the domestic and international network.

Onboard upgrades

Frontier is adding First Class seats to its aircraft and plans to install Starlink Wi-Fi starting in 2027.

On board

Frontier Airlines cabin classes

Frontier sells a base fare plus optional bundles, and seats are chosen and paid for separately unless your bundle includes them. Seat layouts vary by aircraft while the fleet is being reconfigured.

First Class

Wider seats in a 2x2 layout at the front of the aircraft, on aircraft that have been reconfigured.

UpFront Plus

Seats near the front with extra legroom and an empty middle seat.

Premium and Preferred

Premium seats have extra legroom; Preferred seats are closer to the front of the aircraft.

Standard

All remaining seats. Basic fares include a personal item only.

Bundles

The Economy, Premium and Business bundles add a carry-on bag, priority boarding or checked bags, depending on the bundle.

Before you fly

Practical information

Baggage Cabin bags, checked bags, missing luggage

Frontier baggage allowances depend on the fare bundle and Frontier Miles elite status. Limits from Frontier's baggage page are below.

Personal item

Included with every fare. Maximum 18 x 14 x 8 inches, including handles and wheels, and it must fit under the seat.

Carry-on

Included in the Economy, Premium and Business bundles. Maximum 24 x 16 x 10 inches and 35 pounds.

Checked baggage

Maximum 62 linear inches and 40 pounds per bag. The Business bundle includes two checked bags of up to 50 pounds each.

Special items

Sports equipment, pets, oversized items and mobility aids follow separate rules. Check the official Frontier baggage page before you fly.

Check-in and boarding Steps before departure

Check-in on flyfrontier.com or the Frontier app opens 24 hours before departure and closes 60 minutes before departure on domestic and international flights. Boarding ends 20 minutes before departure.

1 Confirm
Confirm the airport and terminal for your flight.
2 Documents
Review ID, passport, visa and entry requirements for your destination.
3 Check in
Check in online or in the app as soon as it opens.
4 Boarding pass
Download the mobile boarding pass or print it.
5 Arrive early
Allow time for bag drop, security and, on international flights, immigration.

Lounges

Frontier does not operate airport lounges, and lounge access is not part of its fares or bundles. Some airports sell independent lounge access; check the location and opening hours before you travel.

Loyalty program

Frontier Miles is Frontier's loyalty program. Members earn miles on Frontier flights and with the Frontier credit card, and elite tiers add benefits that grow with each level, including upgrades to First Class seats for Elite Gold members and above. Program rules change, so check your account for the conditions that apply to your trip.

Flight status and customer service Official sources

For current operational information, use Frontier's official services:

Frontier website

flyfrontier.com for booking, check-in, trip management and flight status

Frontier app

Available for iOS and Android, with mobile boarding passes and flight notifications

Ground transport

Airport transportation for Frontier Airlines passengers

Public transport, authorized taxis, shared shuttles or a pre-booked private transfer. Arriving long-haul or with a lot of luggage is the case for booking ahead: fixed price, and a driver in arrivals with your name on a sign.

Airport Transportation is an independent platform and is not affiliated with or endorsed by Frontier Airlines.

Questions

Frontier Airlines FAQs

What are Frontier Airlines' codes?

Frontier's IATA code is F9, its ICAO code is FFT, and its callsign is FRONTIER FLIGHT.

What is Frontier Airlines' main hub?

Denver International Airport (DEN) is Frontier's home base. Atlanta and Orlando are among its largest operations.

Which concourse does Frontier use in Denver?

Frontier uses Concourse A at Denver International Airport. Confirm the gate on your boarding pass before travel.

Is Frontier Airlines part of an airline alliance?

No. Frontier is not a member of any airline alliance.

What is Frontier's frequent-flyer program?

Frontier Miles.

Does Frontier Airlines fly to Cancún?

Yes. Frontier flies to Cancún from many US cities, including Atlanta, Chicago, Denver, Philadelphia, Charlotte and Raleigh/Durham.

Does Frontier Airlines fly to Punta Cana?

Yes. Frontier flies to Punta Cana from US cities such as Atlanta, Philadelphia and Cleveland, and from San Juan.

Does Frontier Airlines fly to Montego Bay?

Yes. Frontier flies to Montego Bay, Jamaica, from Atlanta and Orlando, with more routes in some seasons.

How big can my personal item be on Frontier?

The personal item included with every fare can be up to 18 x 14 x 8 inches, including handles and wheels, and must fit under the seat in front of you.

When does Frontier check-in open and close?

Check-in opens 24 hours before departure and closes 60 minutes before departure. Boarding ends 20 minutes before departure.

Is Airport Transportation affiliated with Frontier Airlines?

No. Airport Transportation is an independent transportation-booking platform and is not affiliated with or endorsed by Frontier Airlines.

Information reviewed in October 2026. Airline schedules, fleet figures, baggage rules and passenger services are subject to change.

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