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
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
Turkish Airlines (Turkey)
TK; Airports: Istanbul-Ataturk, Ankara Esenboga, Istanbul - Sabiha Gökcen, Oslo-Gardermoen, Stockholm-Arlanda, Stockholm Metropolitan Area, Izmir Adnan Menderes, Antalya
Sun Express (Turkey)
XQ; Airports: Antalya, Izmir Adnan Menderes, Dusseldorf, Cologne (Koeln)-Bonn, Hannover, Frankfurt-Main, Stuttgart-Echterdingen, 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
Etihad Airways (United Arab Emirates)
EY; Airports: Sydney-Kingsford Smith International Airport, NSW, Melbourne-Tullamarine International Airport, Oslo-Gardermoen, Stockholm Metropolitan Area, Stockholm-Arlanda, Brisbane, Rome-Fiumicino, Rome, all Airports - (FCO, CIA)
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
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
Condor (Germany)
DE; Airports: Frankfurt-Main, Dusseldorf, Manchester, Munich, Palma de Mallorca, Hannover, Cancun, Hamburg
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
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
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)
IndiGo Airlines (India)
6E; Airports: Bangalore, Delhi-Indira Gandhi, Hyderabad, Calcutta (Kolkata), Chennai (Madras), Mumbai (Bombay), Cochin, Ahmedabad
Egyptair (Egypt)
MS; Airports: Cairo International, Copenhagen, Jeddah-King Abdulaziz International Airport, Lisbon, Istanbul-Ataturk, Johannesburg-Johannesburg Inernational, Aswan-Daraw Airport, Luxor
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
Cathay Pacific Airways (Hong Kong)
CX; Airports: Hong Kong International Airport, Vancouver International Airport, BC, London, all Airports (LCY, LGW, LHR, LTN, STN, SEN), London Heathrow, Toronto, Toronto - Lester B. Pearson International Airport, San Francisco International Airport, CA, Los Angeles International Airport, CA
Wizz Air (Hungary)
W6; Airports: Budapest-Ferihegy, Warsaw, Bucharest-Otopeni, London, all Airports (LCY, LGW, LHR, LTN, STN, SEN), Gdansk, London Luton, Katowice, Vienna International
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