Note: This not airlines official number. It may connect you with travel agency.
Safair
Safarilink Aviation
Safi Airways
SalamAir
Sansa Airlines
Santa Barbara Airlines
SATA Air Acores
Saudi Arabian Airlines
SaudiGulf Airlines
Scandinavian Airlines
SCAT Airlines
Scoot
Seaborne Airlines
SeaPort Airlines
Servicios Aéreos de los Andes
Severstal Air
Shaheen Air
Shandong Airlines
Shanghai Airlines
Sharp Airlines
Shenzhen Airlines
ShunFeng Airlines
Shuttle America
Siam Air
Siam Ga Co. Ltd.
SiAvia
Sichuan Airlines
Silk Way West Airlines
Silkair airlines
Silver Airways
Singapore Airlines
SITA - Airlines WorldwideTelecommunications and Information Svcs
Skippers Aviation
SKY Airlines
Sky Express
Sky Lease I, Inc.
Sky Regional Airlines
Sky Wings Airlines
Sky-Taxi
SkyBahamas Airlines
SkyJet
Skymark Airlines
Skypower Express Airways
Skytrans Airlines
SkyUp Airlines
Skyview Airways Company Limiteddba Skyview
Skyward Express
Skyway Costa Rica
SkyWest Airlines
Skywings Asia Airlines Co., Ltd.
SkyWork Airlines
Small Planet Airlines
Smartavia
SmartLynx Airlines
SmartWings
Smokey Bay Air, Inc.
SNCF
Sol Lineas Aereas
Solar Cargo, C.A.
Solaseed Air
Solomon Airlines
SOMON AIR
Sounds Air Travel & Tourism Ltd.
SOUTH AFRICAN AIRWAYS
South African Express
South Airlines
South East Asian Airlines (SEAIR)International, Inc.
Southern Air
Southern Air Charter
Southern Air Inc.
Southern Sky
Southwest Airlines
Special Ground Handling Service -XH
SpiceJet
Spirit Airlines
Spring Airlines
Spring Airlines Japan
Sqiva Sistem
Sri Lankan Airlines
Sriwijaya Air
St Barth Commuter
Stabo Air Limited
Star Peru
Starbow
StarFlyer
Starlink Aviation
Stobart Air
STP Airways
Sudan Airways
Sun Air Express
Sun Country Airlines
Sun d'Or International Airlines
Sun Express
SUN-AIR
Sun-Air of Scandinavia
Sunday Express
SunExpress Deutschland
Sunrise Airways
Sunsplash Aviation, LLC.