The average train between Gaithersburg and Princeton takes 4h 6m and the fastest train takes 3h 29m. The train service runs several times per day from Gaithersburg to Princeton. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Trains run every 4 hours between Gaithersburg and Princeton. The earliest departure is at 6:19 AM in the morning, and the last departure from Gaithersburg is at 9:17 PM which arrives into Princeton at 9:15 AM. All services require a transfer at Union Station, Red Line Center Platform and take an average of 4h 6m. The schedules shown below are for the next available departures.



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3h 29m • 3 changes



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3h 37m • 3 changes



3h 36m • 3 changes
Want to know about travelling from Gaithersburg to Princeton? 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 train from Gaithersburg to Princeton. However, there are services departing from Gaithersburg station and arriving at Princeton station via 30th Street Station station. The journey, including transfers, takes approximately 4h 6m.
Gaithersburg to Princeton train services, operated by Washington Metropolitan Area Transit Authority, depart from Washington Union Station.
Gaithersburg to Princeton train services, operated by Washington Metropolitan Area Transit Authority, arrive at Princeton Junction Amtrak Station.
The distance between Gaithersburg and Princeton is 255.3 km. The road distance is 319 km.
You can take a subway from Shady Grove, Red Line Center Platform to Princeton via Union Station, Red Line Center Platform, Washington Union Station, 30th Street Station, Princeton Junction Amtrak Station, and Princeton Jct. in around 4h 51m.