The average bus between Union Station and National Harbor takes 1h 22m and the fastest bus takes 1h 4m. The bus runs at least 2 times per hour from Union Station to National Harbor. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Buses run every 30 minutes between Union Station and National Harbor. The earliest departure is at 6:21 AM in the morning, and the last departure from Union Station is at 11:23 PM which arrives into National Harbor at 12:30 AM. All services require a transfer, and take on average 1h 22m. The schedules shown below are for the next available departures.

1h 18m • 1 change

1h 22m • 1 change

1h 22m • 1 change

1h 19m • 1 change
Want to know about travelling from Union Station to National Harbor? We have put together a list of the most frequently asked questions from our users such as: What is the cheapest mode of transport? What is the quickest option? How much do tickets usually cost? and many more.
No, there is no direct bus from Union Station to National Harbor. However, there are services departing from Union Station station and arriving at National Harbor station via Anacostia+Bay E. The journey, including transfers, takes approximately 1h 22m.
Union Station to National Harbor bus services, operated by Washington Metropolitan Area Transit Authority, depart from Massachusetts Av NE+1 St NE station.
Union Station to National Harbor bus services, operated by Washington Metropolitan Area Transit Authority, arrive at St George Bl+Waterfront St station.
The distance between Union Station and National Harbor is 12.7 km. The road distance is 18 km.
You can take a bus from Massachusetts Av NE+1 St NE to St George Bl+Waterfront St via Anacostia+Bay G in around 1h 18m.