Concourse C of Baltimore/Washington International (BWI) Airport is where Frontier Airlines is based. Food selections, retail stores, and lots of seating areas are just a few of the amenities this Frontier Airlines BWI Terminal has to offer to make your trip more comfortable. The terminal features a laid-back atmosphere and friendly personnel, regardless of whether you have some free time or are boarding a hurried flight. It guarantees a simple trip through BWI and is easy to use for passengers on Frontier.