All but low-cost carriers
Only low-cost carriers
Star Alliance
SkyTeam
Oneworld
Aegean Airlines
Aer Lingus
Aeroflot
Air Albania
Air Algerie
Air Astana
Air Austral
Air Baltic
Air Canada
Air China
Air Dolomiti
Air Europa
Air France
Air India
Air Malta
Air Moldova
Air Namibia
Air Serbia
Alitalia
American Airlines
ANA
Asiana Airlines
Austrian
Azores Airlines
Belavia
British Airways
Bulgaria Air
Cathay Pacific
China Airlines
China Eastern Airlines
China Southern Airlines
Condor
Croatia Airlines
CSA
Delta Air Lines
EgyptAir
El Al
Emirates
Ethiopian Airlines
Etihad Airways
Eurowings
Finnair
FlexFlight
Gulf Air
Iberia
Icelandair
Iran Air
JAL
KLM
Korean Air
Kuwait Airways
LATAM Airlines
LOT - Polish Airlines
Lufthansa
Miat - Mongolian Airlines
Middle East Airlines
Montenegro Airlines
Nouvelair Tunisie
Oman Air
Pegasus
Qatar Airways
Royal Air Maroc
Royal Jordanian
Ryanair
SAS
Saudia
Singapore Airlines
South African Airways
SriLankan Airlines
SunExpress
SWISS
TAP Portugal
TAROM
Thai Airways
TUIfly
Tunisair
Turkish Airlines
UIA
United Airlines
Uzbekistan Airways
Vietnam Airlines