Frontier Airlines operates from Concourse at Baltimore/Washington International Thurgood Marshall Airport (BWI). The airline’s check-in counters are located on the terminal’s upper level, with security screening leading directly to the D/E concourse area. Concourse offers convenient dining, shopping, and comfortable seating for passengers waiting to board. Frontier travelers benefit from BWI’s simple, single-terminal layout, making navigation easy and efficient. Whether departing or arriving, passengers can enjoy smooth airport access, quick ground transportation options, and a budget-friendly travel experience with Frontier at BWI.