Pegasus Airlines (Turkey)
PC; Airports: Istanbul - Sabiha Gökcen, Izmir Adnan Menderes, Antalya, Ankara Esenboga, Ercan, Cyprus, Adana, Rome-Fiumicino, Rome, all Airports - (FCO, CIA)
Turkish Airlines (Turkey)
TK; Airports: Istanbul-Ataturk, Ankara Esenboga, Istanbul - Sabiha Gökcen, Oslo-Gardermoen, Stockholm-Arlanda, Stockholm Metropolitan Area, Izmir Adnan Menderes, Antalya
Eurowings (Germany)
EW; Airports: Dusseldorf, Stuttgart-Echterdingen, Cologne (Koeln)-Bonn, Hamburg, Berlin (TXL, SXF), Berlin-Tegel, Palma de Mallorca, Vienna International
Lufthansa (Germany)
LH; Airports: Munich, Frankfurt-Main, Oslo-Gardermoen, Vienna International, Dusseldorf, Chicago-IL all Airports (ORD, MDW, RFD), Chicago O'Hare International Airport, IL, Stockholm-Arlanda
Condor (Germany)
DE; Airports: Frankfurt-Main, Dusseldorf, Manchester, Munich, Palma de Mallorca, Hannover, Cancun, Hamburg
Qatar Airways (Qatar)
QR; Airports: Doha International Airport, London, all Airports (LCY, LGW, LHR, LTN, STN, SEN), London Heathrow, Sao Paulo Guarulhos International Airport, Sao Paulo - Metropolitan Area ( CGH, GRU, VCP), Muscat-Seeb, Kuwait-Kuwait International, Edinburgh
easyJet (United Kingdom)
U2; Airports: London, all Airports (LCY, LGW, LHR, LTN, STN, SEN), London Gatwick, Berlin (TXL, SXF), Milan, all Airports (MXP, LIN, BGY), Milan-Malpensa, Berlin-Tegel, Geneva, London Luton
Sun Express (Turkey)
XQ; Airports: Antalya, Izmir Adnan Menderes, Dusseldorf, Cologne (Koeln)-Bonn, Hannover, Frankfurt-Main, Stuttgart-Echterdingen, Vienna International
Iberia (Spain)
IB; Airports: Madrid-Barajas, London, all Airports (LCY, LGW, LHR, LTN, STN, SEN), London Heathrow, Barcelona, Chicago-IL all Airports (ORD, MDW, RFD), Chicago O'Hare International Airport, IL, Miami International Airport, FL, Mexico City-Juarez International
Swiss International Air Lines (Switzerland)
LX; Airports: Zurich (Zürich)-Kloten, Geneva, Vienna International, Chicago-IL all Airports (ORD, MDW, RFD), Chicago O'Hare International Airport, IL, London, all Airports (LCY, LGW, LHR, LTN, STN, SEN), Frankfurt-Main, Lulea
Ethiopian Airlines (Ethiopia)
ET; Airports: Addis Ababa, Oslo-Gardermoen, Stockholm-Arlanda, Stockholm Metropolitan Area, Frankfurt-Main, Sao Paulo Guarulhos International Airport, Sao Paulo - Metropolitan Area ( CGH, GRU, VCP), Vienna International
American Airlines (United States)
AA; Airports: Chicago-IL all Airports (ORD, MDW, RFD), Chicago O'Hare International Airport, IL, Dallas-Fort Worth International Airport, T, Charlotte Douglas International Airport, NC, London, all Airports (LCY, LGW, LHR, LTN, STN, SEN), New York (JFK, EWR, LGA), London Heathrow, Miami International Airport, FL
Royal Jordanian (Jordan)
RJ; Airports: Amman - Queen Alia International Airport, Chicago-IL all Airports (ORD, MDW, RFD), Chicago O'Hare International Airport, IL, Doha International Airport, New York (JFK, EWR, LGA), New York - John F. Kennedy International Airport, NY, Cairo International, Jeddah-King Abdulaziz International Airport
Air Canada (Canada)
AC; Airports: Toronto, Toronto - Lester B. Pearson International Airport, Chicago-IL all Airports (ORD, MDW, RFD), Chicago O'Hare International Airport, IL, Montreal, Metropolitan Area - (YUL, YMX, YHU), Montréal-Pierre Elliott Trudeau International Airport, Denver International Airport, CO, Frankfurt-Main
Middle East Airlines (Lebanon)
ME; Airports: Beirut, Paris - Charles de Gaulle, Paris - Metropolitan Area (CDG, ORY, BVA, XCR), Montreal, Metropolitan Area - (YUL, YMX, YHU), Montréal-Pierre Elliott Trudeau International Airport, Amman - Queen Alia International Airport, Jeddah-King Abdulaziz International Airport, London Heathrow
Polskie Linie Lotnicze LOT (Poland)
LO; Airports: Warsaw, Chicago-IL all Airports (ORD, MDW, RFD), Chicago O'Hare International Airport, IL, Frankfurt-Main, Krakow, Munich, Vienna International, Wroclaw - Strachowice
Frontier Airlines (United States)
F9; Airports: Denver International Airport, CO, Orlando International Airport, FL, Las Vegas - McCarran International Airport, NV, Guadalajara, Cancun, Philadelphia International Airport, PA, Chicago-IL all Airports (ORD, MDW, RFD), Chicago O'Hare International Airport, IL
United Airlines (United States)
UA; Airports: Chicago-IL all Airports (ORD, MDW, RFD), Chicago O'Hare International Airport, IL, New York (JFK, EWR, LGA), New York - Newark Liberty International Airport, NJ, San Francisco International Airport, CA, Houston - George Bush Intercontinental Airport, TX, Houston - Metropolitan Area (IAH, HOU), Washington-DC
Spirit Airlines (United States)
NK; Airports: Fort Lauderdale-Hollywood International Airport, FL, Orlando International Airport, FL, Las Vegas - McCarran International Airport, NV, Detroit Metropolitan Area, Detroit Metropolitan Wayne County Airport, MI, Baltimore-Washington International-Thurgood Marshall Airport, MD, Los Angeles International Airport, CA, Chicago-IL all Airports (ORD, MDW, RFD)
Aegean Airlines (Greece)
A3; Airports: Athens, Munich, Stockholm-Arlanda, Stockholm Metropolitan Area, Frankfurt-Main, Copenhagen, Paris - Charles de Gaulle, Paris - Metropolitan Area (CDG, ORY, BVA, XCR)