Rome2Rio

How to get fromPrinceton to Potomacby train (Amtrak), bus (Flixbus), car, train, plane, bus or subway

Find Transport to Potomac

See all options

There are 9 ways to get from Princeton to Potomac by train (Amtrak), bus (Flixbus), car, train, plane, bus, or subway

Select an option below to see step-by-step directions and to compare ticket prices and travel times in Rome2Rio's travel planner.

  1. Train (Amtrak)

    best
    1. Take the train from Trenton to Washington Union StationtrainNortheast Regional
    5h 6m
    $30–286

  2. Bus (Flixbus)

    1. Take the bus from New Brunswick to Washington Union StationbusFlixBus 2609 / ...
    7h 22m
    $45–82

  3. Drive 183.7 mi

    1. Drive from Princeton to Potomaccar183.7 mi
    3h 35m
    $34–49

  4. Train to Newark Liberty International Airport, fly to Ronald Reagan Washington National Airport

    1. Take the train from Princeton Jct. to Newark Airport Railroad Stationtrain
    2. Fly from Newark Liberty International Airport (EWR) to Ronald Reagan Washington National Airport (DCA)planeEWR - DCA
    5h 21m
    $105–526

  5. Train, bus

    1. Take the train from Trenton to Gray 30th St StationtrainTre
    2. Take the bus from Philadelphia to Silver SpringbusNew York
    7h 49m

  6. Train to Newark Liberty International Airport, fly to Washington Dulles International Airport, subway

    1. Take the train from Princeton Jct. to Newark Airport Railroad Stationtrain
    2. Fly from Newark Liberty International Airport (EWR) to Washington Dulles International Airport (IAD)planeEWR - IAD
    3. Take the subway from Washington Dulles International Airport, Silver Line Center Platform to Farragut West, Blue/Orange/Silver Line Track 1 Platformsubway
    5h 54m
    $225–470

  7. Line 606 bus, train to Philadelphia International Airport, fly to Ronald Reagan Washington National Airport, subway, bus

    1. Take the bus from Nassau St At Palmer Square to S Clinton Ave At Barlow Stbus
    2. Take the train from Trenton to 30th Street Stationtrain
    3. Fly from Philadelphia International Airport (PHL) to Ronald Reagan Washington National Airport (DCA)planePHL - DCA
    4. Take the subway from Farragut North, Red Line Center Platform to Rockville, Red Line Center Platformsubway
    5. Take the bus from Rockville+Bay A to Falls Rd+River Rdbus
    5h 52m
    $88–770

  8. Line 606 bus, train to Philadelphia International Airport, fly to Washington Dulles International Airport, subway, bus

    1. Take the bus from Nassau St At Palmer Square to S Clinton Ave At Barlow Stbus
    2. Take the train from Trenton to 30th Street Stationtrain
    3. Fly from Philadelphia International Airport (PHL) to Washington Dulles International Airport (IAD)planePHL - IAD
    4. Take the subway from Washington Dulles International Airport, Silver Line Center Platform to Farragut West, Blue/Orange/Silver Line Track 1 Platformsubway
    5. Take the subway from Farragut North, Red Line Center Platform to Rockville, Red Line Center Platformsubway
    6. Take the bus from Rockville+Bay A to Falls Rd+River Rdbus
    6h 28m
    $243–824

  9. Train, train to Laguardia Airport, fly to Ronald Reagan Washington National Airport, subway, bus

    1. Take the train from Princeton Jct. to New York Penn Stationtrain
    2. Take the train from New York Penn Station to Flushing Main Streettrain
    3. Fly from Laguardia Airport (LGA) to Ronald Reagan Washington National Airport (DCA)planeLGA - DCA
    4. Take the subway from Farragut North, Red Line Center Platform to Rockville, Red Line Center Platformsubway
    5. Take the bus from Rockville+Bay A to Falls Rd+River Rdbus
    7h 2m
    $98–609

Princeton to Potomac by bus, train, and subway (Amtrak)

Calendar146Weekly Services
Duration5h 6mAverage Duration
Ticket$30Cheapest Price
See schedules

Questions & Answers

What companies run services between Princeton, NJ, USA and Potomac, Montgomery County, MD, USA?

Amtrak Northeast Regional operates a train from Trenton to Washington Union Station hourly. Tickets cost $23–270 and the journey takes 2h 30m. Amtrak also services this route 5 times a day. Alternatively, Flixbus USA operates a bus from New Brunswick to Washington Union Station 3 times a day. Tickets cost $30–65 and the journey takes 3h 40m.

Transport is disrupted due to the Russia-Ukraine war. Read more

Airlines
Train operators
Bus operators

Want to know more about travelling around United States

Rome2Rio's Travel Guide series provide vital information for the global traveller. Filled with useful and timely travel information, the guides answer all the hard questions - such as 'How do I buy a ticket?', 'Should I book online before I travel? ', 'How much should I expect to pay?', 'Do the trains and buses have Wifi?' - to help you get the most out of your next trip.

Related travel guides

More Questions & Answers

Trips from Princeton

Trips to Potomac

Popular routes