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Rockville to Princeton Junction trains

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Trip Overview

The average train between Rockville and Princeton Junction takes 3h 54m and the fastest train takes 3h 8m. There is a train service every few hours from Rockville to Princeton Junction. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.

3h 54m
Duration
191 mi
Distance
$118
Average price
Hourly
Frequency

Train (Amtrak)

best
  1. Take the train from Washington Union Station to Trentontrain train Carolinian / ...
3h 54m
$97–152

Rockville to Princeton Junction train times

Trains run hourly between Rockville and Princeton Junction. The earliest departure is at 1:35 AM at night, and the last departure from Rockville is at 11:35 PM which arrives into Princeton Junction at 7:47 AM. All services require a transfer at Union Station, Red Line Center Platform and take an average of 3h 54m. The schedules shown below are for the next available departures.

Departing Wednesday, October 21, 2026

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    Washington Metropolitan Area Transit AuthorityAmtrakNJ Transit3h 36m • 2 changes

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    Washington Metropolitan Area Transit AuthorityAmtrakNJ Transit4h 5m • 2 changes

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    Arrives next day

    Washington Metropolitan Area Transit AuthorityAmtrakNJ Transit3h 46m • 2 changes

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    Arrives next day

    Washington Metropolitan Area Transit AuthorityAmtrakNJ Transit8h 12m • 2 changes

Departing Thursday, October 22, 2026

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    Washington Metropolitan Area Transit AuthorityAmtrakNJ Transit3h 34m • 2 changes

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    Washington Metropolitan Area Transit AuthorityAmtrakNJ Transit3h 32m • 2 changes

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    Washington Metropolitan Area Transit AuthorityAmtrakNJ Transit3h 25m • 2 changes

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    Washington Metropolitan Area Transit AuthorityAmtrakAmtrak3h 19m • 2 changes
  • Show more

Departing Friday, October 23, 2026

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    Washington Metropolitan Area Transit AuthorityAmtrakNJ Transit3h 34m • 2 changes

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    Washington Metropolitan Area Transit AuthorityAmtrakNJ Transit3h 32m • 2 changes

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    Washington Metropolitan Area Transit AuthorityAmtrakNJ Transit3h 25m • 2 changes

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    Washington Metropolitan Area Transit AuthorityAmtrakAmtrak3h 19m • 2 changes
  • Show more

Departing Saturday, October 24, 2026

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    Washington Metropolitan Area Transit AuthorityAmtrakNJ Transit6h 55m • 2 changes

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    Washington Metropolitan Area Transit AuthorityAmtrakAmtrak3h 8m • 2 changes

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    Washington Metropolitan Area Transit AuthorityAmtrakNJ Transit3h 55m • 2 changes

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    Washington Metropolitan Area Transit AuthorityAmtrakNJ Transit3h 29m • 2 changes
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Departing Sunday, October 25, 2026

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    Washington Metropolitan Area Transit AuthorityAmtrakNJ Transit6h 55m • 2 changes

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    Washington Metropolitan Area Transit AuthorityAmtrakAmtrak3h 8m • 2 changes

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    Washington Metropolitan Area Transit AuthorityAmtrakNJ Transit3h 29m • 2 changes

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    Washington Metropolitan Area Transit AuthorityAmtrakNJ Transit3h 27m • 2 changes
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Departing Monday, October 26, 2026

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    Washington Metropolitan Area Transit AuthorityAmtrakNJ Transit3h 34m • 2 changes

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    Washington Metropolitan Area Transit AuthorityAmtrakNJ Transit3h 32m • 2 changes

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    Washington Metropolitan Area Transit AuthorityAmtrakNJ Transit3h 25m • 2 changes

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    Washington Metropolitan Area Transit AuthorityAmtrakAmtrak3h 19m • 2 changes
  • Show more

Departing Tuesday, October 27, 2026

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    Washington Metropolitan Area Transit AuthorityAmtrakNJ Transit3h 34m • 2 changes

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    Washington Metropolitan Area Transit AuthorityAmtrakNJ Transit3h 32m • 2 changes

  •  → 

    Washington Metropolitan Area Transit AuthorityAmtrakNJ Transit3h 25m • 2 changes

  •  → 

    Washington Metropolitan Area Transit AuthorityAmtrakAmtrak3h 19m • 2 changes
  • Show more

Frequently asked questions

Want to know about travelling from Rockville to Princeton Junction? 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.

Map of how to get from Rockville to Princeton Junction.ExpandLaunch map view
  • Distance: 191.1 mi
  • Duration: 3h 54m

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 $90–140 and the journey takes 2h 17m.

Operators