The average bus between Union Station and South Station takes 9h 48m and the fastest bus takes 9h. The bus service runs several times per day from Union Station to South Station. 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 2 hours between Union Station and South Station. The earliest departure is at 12:05 AM at night, and the last departure from Union Station is at 9:35 PM which arrives into South Station at 7:50 AM. All services require a transfer, and take on average 9h 48m. The schedules shown below are for the next available departures.

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Want to know about travelling from Union Station to South Station? 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 South Station. However, there are services departing from Union Station station and arriving at South Station station via New York Midtown. The journey, including transfers, takes approximately 9h 48m.
Union Station to South Station bus services, operated by Flixbus USA, depart from Washington Union Station.
Union Station to South Station bus services, operated by Flixbus USA, arrive at Boston station.
Book your Union Station to South Station bus tickets online with Flixbus USA.
The distance between Union Station and South Station is 632 km. The road distance is 790 km.
You can take a bus from Washington Union Station to Boston via New York Midtown in around 9h 31m.