Smithsonian Institution to Baltimore Airport (BWI) bus times
Buses run 3 times a day between Smithsonian Institution and Baltimore Airport (BWI). The earliest departure is at 1:09 PM in the afternoon, and the last departure from Smithsonian Institution is at 7:10 PM which arrives into Baltimore Airport (BWI) at 5:05 AM. All services require a transfer at CONSTITUTION AVE & 9TH ST NW wb and take an average of 3h 46m. The schedules shown below are for the next available departures.
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2h 12m • 1 change
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1h 51m • 1 change
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2h 21m • 1 change
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Arrives next day
9h 55m • 1 change
Departing Wednesday, August 19, 2026
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2h 12m • 1 change
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1h 51m • 1 change
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2h 21m • 1 change
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Arrives next day
9h 55m • 1 change
Departing Thursday, August 20, 2026
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2h 12m • 1 change
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1h 51m • 1 change
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2h 21m • 1 change
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Arrives next day
10h 4m • 1 change
