• Sabena Airlines - Belgio
• Sabena-USA
• SAS Scandinavia (Danimarca, Norvegia, Svezia)
• Saudi Arabian Airlines - Arabia Suadita
• Scenic Airlines - Usa
• Shandong Airlines - Cina
• Silk Air - Singapore
• Singapore Airlines
• Skyways - Svezia
• Skywest Airlines - Australia
• SkyWest - USA
• Solomon Airlines Isole Solomon (Australia)
• South African Airways
• South African Express
• South Central Air - Penisola di Kenai (Inghilterra)
• Southwest Airlines - Usa
• Spanair - Spagna
• Sun Air - Sud Africa
• Sun Country Airlines, Inc. - Usa
• Sunflower Airlines - Fiji
• SunJet - Usa
• Surinam Airways
• Swissair