Baltimore/Washington · BWI · Question
What Airlines Fly Out of BWI? Complete Airline List
Expert answer updated for 2026, with official sources and links to detailed guides.
Baltimore/Washington International Thurgood Marshall Airport (BWI) is served by 9+ airlines, offering flights to domestic and international destinations. BWI is a hub airport for Southwest Airlines, which means extensive route networks and frequent flights from these carriers.
All Airlines at BWI
- Southwest Airlines
- American Airlines
- Delta Air Lines
- United Airlines
- JetBlue
- Spirit Airlines
- Frontier Airlines
- British Airways
- Icelandair
Which Terminal Is Each Airline At?
Airlines at BWI are spread across 5 terminal areas. To find exactly which terminal, gates, and TSA checkpoint your airline uses, use our Terminal Finder tool — just select BWI and your airline for instant results.
You can also see the full terminal-by-terminal breakdown in our BWI airline directory, which includes gate ranges and hub badges.
Hub Airlines at BWI
Southwest Airlines uses BWI 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.