San Francisco · SFO · Question
What Airlines Fly Out of SFO? Complete Airline List
Expert answer updated for 2026, with official sources and links to detailed guides.
San Francisco International Airport (SFO) is served by 14+ airlines, offering flights to domestic and international destinations. SFO is a hub airport for United Airlines, which means extensive route networks and frequent flights from these carriers.
All Airlines at SFO
- United Airlines
- Alaska Airlines
- American Airlines
- Southwest Airlines
- Delta Air Lines
- JetBlue
- Frontier Airlines
- Air France
- British Airways
- Cathay Pacific
- Emirates
- Korean Air
- Lufthansa
- Singapore Airlines
Which Terminal Is Each Airline At?
Airlines at SFO are spread across 4 terminal areas. To find exactly which terminal, gates, and TSA checkpoint your airline uses, use our Terminal Finder tool — just select SFO and your airline for instant results.
You can also see the full terminal-by-terminal breakdown in our SFO airline directory, which includes gate ranges and hub badges.
Hub Airlines at SFO
United Airlines uses SFO as a hub, operating the most flights and typically occupying dedicated terminal space. Hub passengers benefit from more flight options, better lounge access, and stronger frequent flyer earning at their hub airport.
For detailed guides on individual airlines including baggage fees, loyalty programs, and check-in tips, visit our airline directory.