BWI Airport Terminal Map - Gates & Navigation

Baltimore Airport, United States - Terminal Navigation Information
The airport has one terminal. It has five concourses:
Concourse A/B: Exclusively used by Southwest Airlines. It has 30 Gates.
Concourse C: Used by Southwest Airlines, American Airlines, and Contour. It has 14 Gates.
Concourse D: Used for domestic flights, and non-Southwest Airlines flights. It has 23 Gates, 3 of which are used for international flights.
Concourse E: Used for international flights. It has 11 Gates, all of which are used for international flights. International flights from Southwest Airlines and Spirit Airlines use this concourse.