There are 9 ways to get from Rockville to Princeton Junction by train (Amtrak), bus (Flixbus), car, plane, train, 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.
Train (Amtrak)
best- Take the train from Washington Union Station to Trentontrain Carolinian / ...
3h 54m$49–130Drive 182.2 mi
cheapest- Drive from Rockville to Princeton Junctioncar 182.2 mi
3h 19m$34–48Bus (Flixbus)
- Take the bus from Washington Union Station to New Brunswickbus FlixBus 2609 / ...
6h 2m$37–63Fly Ronald Reagan Washington National Airport to Newark Liberty International Airport, train
- Fly from Ronald Reagan Washington National Airport (DCA) to Newark Liberty International Airport (EWR)plane DCA - EWR
- Take the train from Newark Airport Railroad Station to Princeton Jct.train
4h 21m$930–1,741Fly Ronald Reagan Washington National Airport to Laguardia Airport, train
- Fly from Ronald Reagan Washington National Airport (DCA) to Laguardia Airport (LGA)plane DCA - LGA
- Take the train from New York Penn Station to Princeton Jct.train
5h 11m$104–734Subway to Washington Dulles International Airport, fly to Newark Liberty International Airport, train
- Take the subway from Metro Center, Blue/Orange/Silver Line Center Platform to Washington Dulles International Airport, Silver Line Center Platformsubway
- Fly from Washington Dulles International Airport (IAD) to Newark Liberty International Airport (EWR)plane IAD - EWR
- Take the train from Newark Airport Railroad Station to Princeton Jct.train
4h 58m$470–1,740Subway to Washington Dulles International Airport, fly to Laguardia Airport, train
- Take the subway from Metro Center, Blue/Orange/Silver Line Center Platform to Washington Dulles International Airport, Silver Line Center Platformsubway
- Fly from Washington Dulles International Airport (IAD) to Laguardia Airport (LGA)plane IAD - LGA
- Take the train from New York Penn Station to Princeton Jct.train
6h 5m$74–483Subway to Ronald Reagan Washington National Airport, fly to Philadelphia International Airport, train
- Take the subway from Rockville, Red Line Center Platform to Gallery Place, Red Line Track 1 Platformsubway
- Fly from Ronald Reagan Washington National Airport (DCA) to Philadelphia International Airport (PHL)plane DCA - PHL
- Take the train from 30th Street Station to Princeton Junction Amtrak Stationtrain
5h 12m$967–1,341Subway to Washington Dulles International Airport, fly to Philadelphia International Airport, train
- Take the subway from Metro Center, Blue/Orange/Silver Line Center Platform to Washington Dulles International Airport, Silver Line Center Platformsubway
- Fly from Washington Dulles International Airport (IAD) to Philadelphia International Airport (PHL)plane IAD - PHL
- Take the train from 30th Street Station to Princeton Junction Amtrak Stationtrain
5h 45m$967–1,240
Rockville to Princeton Junction by subway and train (Amtrak)
Comparing Your Travel Options
The cheapest way to get from Rockville to Princeton Junction is to drive which costs $30 - $50 and takes 3h 19m.
The fastest way to get from Rockville to Princeton Junction is to drive which takes 3h 19m and costs $30 - $50.
No, there is no direct bus from Rockville station to Princeton Junction. However, there are services departing from Rockville Station & Bay D and arriving at New Brunswick via Washington Union Station. The journey, including transfers, takes approximately 6h 2m.
No, there is no direct train from Rockville to Princeton Junction. However, there are services departing from Rockville, Red Line Center Platform and arriving at Princeton Jct. via Washington Union Station and Trenton Transit Center. The journey, including transfers, takes approximately 3h 54m.
The distance between Rockville and Princeton Junction is 192 miles. The road distance is 183.2 miles.
The best way to get from Rockville to Princeton Junction without a car is to train which takes 3h 54m and costs $45 - $130.
It takes approximately 3h 54m to get from Rockville to Princeton Junction, including transfers.
Rockville to Princeton Junction bus services, operated by Flixbus USA, depart from Washington Union Station.
Rockville to Princeton Junction train services, operated by Amtrak, depart from Washington Union Station.
The best way to get from Rockville to Princeton Junction is to train which takes 3h 54m and costs $45 - $130. Alternatively, you can bus, which costs $35 - $65 and takes 6h 2m.
What companies run services between Rockville, MD, USA and Princeton Junction, NJ, USA?
Amtrak operates a train from Washington Union Station to Trenton hourly. Tickets cost $45–120 and the journey takes 2h 17m. Alternatively, Flixbus USA operates a bus from Washington Union Station to New Brunswick twice daily. Tickets cost $29–45 and the journey takes 3h 40m.
- Website
- united.com
Flights from Ronald Reagan Washington National Airport to Newark Liberty International Airport
- Ave. Duration
- 1h 26m
- When
- Every day
- Estimated price
- $55–400
Flights from Washington Dulles International Airport to Newark Liberty International Airport
- Ave. Duration
- 1h 23m
- When
- Every day
- Estimated price
- $35–270
Flights from Washington Dulles International Airport to Laguardia Airport
- Ave. Duration
- 1h 24m
- When
- Every day
- Estimated price
- $65–450
Flights from Washington Dulles International Airport to Philadelphia International Airport
- Ave. Duration
- 1h 12m
- When
- Every day
- Estimated price
- $45–350
- Website
- aa.com
Flights from Ronald Reagan Washington National Airport to Laguardia Airport
- Ave. Duration
- 1h 30m
- When
- Every day
- Estimated price
- $95–700
Flights from Ronald Reagan Washington National Airport to Philadelphia International Airport
- Ave. Duration
- 1h 9m
- When
- Every day
- Estimated price
- $70–550
- Website
- delta.com
Flights from Ronald Reagan Washington National Airport to Laguardia Airport
- Ave. Duration
- 1h 17m
- When
- Every day
- Estimated price
- $95–700
Rome2Rio's guide to Amtrak
Contact DetailsContact Details
- Phone
- +1 800-872-7245
- Website
- Amtrak
Train from Washington Union Station to Trenton
- Ave. Duration
- 2h 17m
- Frequency
- Hourly
- Estimated price
- $45–120
- Website
- Amtrak
Train from 30th Street Station to Princeton Junction Amtrak Station
- Ave. Duration
- 33 min
- Frequency
- Every 4 hours
- Estimated price
- $11–30
- Website
- Amtrak
Train from 30th Street Station to Princeton Junction Amtrak Station
- Ave. Duration
- 33 min
- Frequency
- Every 4 hours
- Estimated price
- $11–30
- Website
- Amtrak
- Phone
- +1 973-275-5555
- Website
- New Jersey Transit
Train from Newark Airport Railroad Station to Princeton Jct.
- Ave. Duration
- 49 min
- Frequency
- Every 30 minutes
- Estimated price
- $20–25
- Website
- New Jersey Transit
- Website
- NJ Transit: World Cup 2026
- Adult Airport
- $20–25
Train from New York Penn Station to Princeton Jct.
- Ave. Duration
- 1h 13m
- Frequency
- Every 30 minutes
- Estimated price
- $2–21
- Website
- New Jersey Transit
- Website
- NJ Transit: World Cup 2026
- Adult
- $2–21
Train from Newark Airport Railroad Station to Princeton Jct.
- Ave. Duration
- 49 min
- Frequency
- Every 30 minutes
- Estimated price
- $20–25
- Website
- New Jersey Transit
- Website
- NJ Transit: World Cup 2026
- Adult Airport
- $20–25
Train from New York Penn Station to Princeton Jct.
- Ave. Duration
- 1h 13m
- Frequency
- Every 30 minutes
- Estimated price
- $2–21
- Website
- New Jersey Transit
- Website
- NJ Transit: World Cup 2026
- Adult
- $2–21
Subway from Metro Center, Blue/Orange/Silver Line Center Platform to Washington Dulles International Airport, Silver Line Center Platform
- Ave. Duration
- 51 min
- Frequency
- Every 15 minutes
- Estimated price
- $2–3
- Website
- Washington Metropolitan Area Transit Authority
- standard fare after 9:30 p.m
- $2–3
Subway from Metro Center, Blue/Orange/Silver Line Center Platform to Washington Dulles International Airport, Silver Line Center Platform
- Ave. Duration
- 51 min
- Frequency
- Every 15 minutes
- Estimated price
- $2–3
- Website
- Washington Metropolitan Area Transit Authority
- standard fare after 9:30 p.m
- $2–3
Subway from Rockville, Red Line Center Platform to Gallery Place, Red Line Track 1 Platform
- Ave. Duration
- 31 min
- Frequency
- Every 10 minutes
- Estimated price
- $2–3
- Website
- Washington Metropolitan Area Transit Authority
- standard fare after 9:30 p.m
- $2–3
Subway from Metro Center, Blue/Orange/Silver Line Center Platform to Washington Dulles International Airport, Silver Line Center Platform
- Ave. Duration
- 51 min
- Frequency
- Every 15 minutes
- Estimated price
- $2–3
- Website
- Washington Metropolitan Area Transit Authority
- standard fare after 9:30 p.m
- $2–3
- Phone
- +1 (855) 626-8585
- Website
- Flixbus USA
Bus from Washington Union Station to New Brunswick
- Ave. Duration
- 3h 40m
- Frequency
- Twice daily
- Estimated price
- $29–45
- Schedules at
- Flixbus USA
Want to know more about travelling around United States
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Booking & Getting There
Rockville to Princeton Junction bus services, operated by Flixbus USA, arrive at New Brunswick station.
Rockville to Princeton Junction train services, operated by Amtrak, arrive at Trenton station.
Yes, the driving distance between Rockville to Princeton Junction is 183 miles. It takes approximately 3h 19m to drive from Rockville to Princeton Junction.
Book your Rockville to Princeton Junction train tickets online with Omio.
There are 137+ hotels available in Princeton Junction.












