The average bus between Princeton and Potomac takes 9h 47m and the fastest bus takes 6h 24m. The bus service runs several times per day from Princeton to Potomac. 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 3 times a day between Princeton and Potomac. The earliest departure is at 6:00 AM in the morning, and the last departure from Princeton is at 4:00 PM which arrives into Potomac at 5:50 AM. All services require a transfer at New Brunswick and take an average of 9h 47m. The schedules shown below are for the next available departures.




7h 49m • 4 changes




6h 59m • 4 changes
Arrives next day




13h 50m • 4 changes




7h 49m • 4 changes




6h 59m • 4 changes
Arrives next day




13h 50m • 4 changes




7h 54m • 4 changes




6h 59m • 4 changes




6h 53m • 4 changes
Arrives next day




15h 22m • 4 changes




7h 24m • 4 changes




6h 24m • 4 changes
Arrives next day




15h 20m • 4 changes
Want to know about travelling from Princeton to Potomac? 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 Princeton to Potomac. However, there are services departing from Princeton station and arriving at Potomac station via Washington Union Station station. The journey, including transfers, takes approximately 9h 47m.
Princeton to Potomac bus services, operated by Rockland Coaches, depart from New Brunswick station.
Princeton to Potomac bus services, operated by Rockland Coaches, arrive at Washington Union Station.
The distance between Princeton and Potomac is 263.6 km. The road distance is 368 km.
Flixbus USA operates a bus from New Brunswick to Washington Union Station 4 times a day. Tickets cost $26–45 and the journey takes 3h 40m.