Turkish Airlines (Turkey)
TK; Airports: Istanbul-Ataturk, Ankara Esenboga, Istanbul - Sabiha Gökcen, Oslo-Gardermoen, Stockholm-Arlanda, Stockholm Metropolitan Area, Izmir Adnan Menderes, Antalya
Pegasus Airlines (Turkey)
PC; Airports: Istanbul - Sabiha Gökcen, Izmir Adnan Menderes, Antalya, Ankara Esenboga, Ercan, Cyprus, Adana, Rome-Fiumicino, Rome, all Airports - (FCO, CIA)
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
Eurowings (Germany)
EW; Airports: Dusseldorf, Stuttgart-Echterdingen, Cologne (Koeln)-Bonn, Hamburg, Berlin (TXL, SXF), Berlin-Tegel, Palma de Mallorca, Vienna International
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
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
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
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)
Austrian Airlines (Austria)
OS; Airports: Vienna International, Toronto, Toronto - Lester B. Pearson International Airport, Frankfurt-Main, Copenhagen, Munich, Stockholm-Arlanda, Stockholm Metropolitan Area
Emirates Airline (United Arab Emirates)
EK; Airports: Dubai, Sydney-Kingsford Smith International Airport, NSW, Melbourne-Tullamarine International Airport, New York (JFK, EWR, LGA), Seattle-Tacoma International Airport, WA, Brisbane, Boston Logan International Airport, MA, New York - John F. Kennedy International Airport, NY
Sun Express (Turkey)
XQ; Airports: Antalya, Izmir Adnan Menderes, Dusseldorf, Cologne (Koeln)-Bonn, Hannover, Frankfurt-Main, Stuttgart-Echterdingen, Vienna International
Egyptair (Egypt)
MS; Airports: Cairo International, Copenhagen, Jeddah-King Abdulaziz International Airport, Lisbon, Istanbul-Ataturk, Johannesburg-Johannesburg Inernational, Aswan-Daraw Airport, Luxor
British Airways (United Kingdom)
BA; Airports: London, all Airports (LCY, LGW, LHR, LTN, STN, SEN), London Heathrow, London Gatwick, Dallas-Fort Worth International Airport, T, Chicago-IL all Airports (ORD, MDW, RFD), Chicago O'Hare International Airport, IL, Madrid-Barajas, Dublin
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)
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
Air France (France)
AF; Airports: Hartsfield-Jackson Atlanta International Airport, GA, Paris - Metropolitan Area (CDG, ORY, BVA, XCR), Detroit Metropolitan Area, Detroit Metropolitan Wayne County Airport, MI, Paris - Charles de Gaulle, Paris-Orly, New York (JFK, EWR, LGA), New York - John F. Kennedy International Airport, NY
KLM (Netherlands)
KL; Airports: Hartsfield-Jackson Atlanta International Airport, GA, Amsterdam-Schiphol, Detroit Metropolitan Area, Detroit Metropolitan Wayne County Airport, MI, Minneapolis - St. Paul International Airport, MN, New York (JFK, EWR, LGA), New York - John F. Kennedy International Airport, NY, Salt Lake City International Airport, UT
Brussels Airlines (Belgium)
SN; Airports: Brussels, Frankfurt-Main, Washington DC - Dulles International Airport, DC, Washington-DC, Chicago-IL all Airports (ORD, MDW, RFD), Chicago O'Hare International Airport, IL, New York (JFK, EWR, LGA), Toronto
Vueling Airlines (Spain)
VY; Airports: Barcelona, Rome-Fiumicino, Rome, all Airports - (FCO, CIA), Paris - Metropolitan Area (CDG, ORY, BVA, XCR), Bilbao, Palma de Mallorca, Paris-Orly, Alicante