Frontier Airlines BRU Terminal – Brussels Airport

Frontier Airlines CPH Terminal – Copenhagen Airport

Frontier Airlines FCO Terminal – Leonardo da Vinci–Fiumicino Airport

Frontier Airlines BCN Terminal – Josep Tarradellas Barcelona-El Prat Airport

Frontier Airlines VIE Terminal – Vienna International Airport

Frontier Airlines MAD Terminal – Adolfo Suárez Madrid–Barajas Airport

Frontier Airlines ZRH Terminal – Zurich Airport

Frontier Airlines IST Terminal – Istanbul Airport

Frontier Airlines GRU Terminal – Aeroporto International de São Paulo-Guarulhos

Frontier Airlines KUL Terminal – Kuala Lumpur International Airport

Frontier Airlines MAN Terminal – Manchester Airport

Frontier Airlines MEL Terminal – Melbourne Airport

Frontier Airlines PER Terminal – Perth Airport

Frontier Airlines DUB Terminal – Dublin Airport

Frontier Airlines EDI Terminal – Edinburgh Airport

Frontier Airlines HEL Terminal – Helsinki Airport

Frontier Airlines LIS Terminal – Humberto Delgado Airport

Frontier Airlines OSL Terminal – Oslo Airport

Frontier Airlines SAV Terminal – Savannah/Hilton Head International Airport

Frontier Airlines CMH Terminal – John Glenn Columbus International Airport

Frontier Airlines BDL Terminal – Bradley International Airport

Frontier Airlines SNA Terminal – John Wayne Airport

Frontier Airlines ORF  Terminal – Norfolk International Airport

Frontier Airlines SAT Terminal – San Antonio International Airport

Frontier Airlines PIT Terminal – Pittsburgh International Airport

Frontier Airlines BQN Terminal – Rafael Hernández Airport

Frontier Airlines MKE Terminal – Milwaukee Mitchell International Airport

Frontier Airlines SLC Terminal – Salt Lake City International Airport

Frontier Airlines MCO Terminal – Orlando International Airport

Frontier Airlines ATL Terminal – Hartsfield-Jackson Atlanta Intl. Airport

Frontier Airlines MIA Terminal – Miami International Airport

Frontier Airlines PHL Terminal – Philadelphia International Airport

Frontier Airlines SEA Terminal – Seattle–Tacoma International Airport

Frontier Airlines LAS Terminal – Harry Reid International Airport

Frontier Airlines SFO Terminal – San Francisco International Airport

Frontier Airlines JFK Terminal – John F. Kennedy International Airport

Frontier Airlines DEN Terminal – Denver International Airport

Frontier Airlines DFW Terminal – Dallas Fort Worth International Airport

Frontier Airlines ORD Terminal – Chicago O’Hare International Airport

Frontier Airlines LAX Terminal – Los Angeles International Airport

Frontier Airlines LGW Terminal – London Gatwick Airport

Frontier Airlines YVR Terminal – Vancouver International Airport

Frontier Airlines LHR Terminal – Heathrow Airport

Frontier Airlines EWR Terminal – Newark Liberty International Airport

Frontier Airlines YYZ Terminal – Toronto Pearson International Airport

Frontier Airlines DTW Terminal – Detroit Metropolitan Wayne County Airport

Frontier Airlines MSP Terminal – Minneapolis–Saint Paul International Airport

Frontier Airlines CLT Terminal – Charlotte Douglas International Airport

Frontier Airlines IAH Terminal – George Bush Intercontinental Airport

Frontier Airlines PHX Terminal – Phoenix Sky Harbor International Airport

Frontier Airlines SYD Terminal – Sydney Airport

Frontier Airlines BKK Terminal – Suvarnabhumi Airport

Frontier Airlines DXB Terminal – Dubai International Airport

Frontier Airlines SIN Terminal – Singapore Changi Airport

Frontier Airlines HKG Terminal – Hong Kong International Airport

Frontier Airlines PEK Terminal – Beijing Capital International Airport

Frontier Airlines NRT Terminal – Narita International Airport

Frontier Airlines HND Terminal – Haneda Airport

Frontier Airlines AMS Terminal – Amsterdam Airport Schiphol

Frontier Airlines FRA Terminal – Frankfurt Airport