Lufthansa (Germany)
LH; Airports: Munich, Frankfurt-Main, Oslo-Gardermoen, Vienna, Dusseldorf, Chicago IL all Airports (ORD, MDW, RFD), Chicago O'Hare, Stockholm-Arlanda
Pegasus Airlines (Turkey)
PC; Airports: Istanbul - Sabiha Gökcen, Izmir Adnan Menderes, Antalya, Ankara Esenboga, Ercan, Cyprus, Adana, Rome Fiumicino Leonardo da Vinci, Rome, all Airports - (FCO, CIA)
Eurowings (Germany)
EW; Airports: Dusseldorf, Stuttgart, Cologne (Koeln)-Bonn, Hamburg, Berlin (TXL, SXF), Berlin-Tegel, Palma de Mallorca, Vienna
Turkish Airlines (Turkey)
TK; Airports: Istanbul Atatürk, 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, Vienna
Hayways (Armenia)
VF
Condor (Germany)
DE; Airports: Frankfurt-Main, Dusseldorf, Manchester, Munich, Palma de Mallorca, Hannover, Cancun, Hamburg
easyJet (United Kingdom)
U2; Airports: London (LCY, LGW, LHR, LTN, STN, SEN), London Gatwick, Berlin (TXL, SXF), Milan, all Airports (MXP, LIN, BGY), Milan-Malpensa, Berlin-Tegel, Geneva, London Luton
Corendon Airlines (Turkey)
XC; Airports: Antalya, Brussels, Gazipasa, Amsterdam Schiphol, Tel Aviv Ben Gurion, Dusseldorf, Bodrum-Milas Airport, Berlin (TXL, SXF)
KLM (Netherlands)
KL; Airports: 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, Salt Lake City International Airport, UT
Austrian Airlines (Austria)
OS; Airports: Vienna, Toronto, Toronto Pearson, Frankfurt-Main, Copenhagen, Munich, Stockholm-Arlanda, Stockholm Metropolitan Area
British Airways (United Kingdom)
BA; Airports: London (LCY, LGW, LHR, LTN, STN, SEN), London Heathrow, London Gatwick, Dallas-Fort Worth International Airport, TX, Chicago IL all Airports (ORD, MDW, RFD), Chicago O'Hare, 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)
Air France (France)
AF; Airports: 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
Swiss International Air Lines (Switzerland)
LX; Airports: Zurich (Zürich)-Kloten, Geneva, Vienna, Chicago IL all Airports (ORD, MDW, RFD), Chicago O'Hare, London (LCY, LGW, LHR, LTN, STN, SEN), Frankfurt-Main, Lulea
Vueling Airlines (Spain)
VY; Airports: Barcelona El Prat, Rome Fiumicino Leonardo da Vinci, Rome, all Airports - (FCO, CIA), Paris - Metropolitan Area - (CDG, ORY, BVA, XCR), Bilbao, Palma de Mallorca, Paris Orly, Alicante
TUI fly (Germany)
X3; Airports: Hannover, Dusseldorf, Frankfurt-Main, Palma de Mallorca, Stuttgart, Las Palmas - Gran Canaria, Munich, Fuerteventura
Wizz Air (Hungary)
W6; Airports: Budapest Ferihegy, Warsaw, Bucharest-Otopeni, London (LCY, LGW, LHR, LTN, STN, SEN), Gdansk, London Luton, Katowice, Vienna
Eurowings Discover (Germany)
4Y
Wizz Air Malta (Malta)
W4