Baltimore/Washington International Thurgood Marshall Airport is served by 31 airlines, flying from/to 89 destinationsLongest flight from Baltimore/Washington International Thurgood Marshall Airport is Baltimore to 🇬🇧 London (LHR), which takes around 7 hours and 10 minutes. On an airline like British Airways. More info on this flight route (BWI-LHR).Shortest flight from Baltimore/Washington International Thurgood Marshall Airport is Baltimore to 🇺🇸 Washington (DCA), which takes around 15 minutes. On an airline like Southwest Airlines. More info on this flight route (BWI-DCA).