Princeton Junction to Gaithersburg Trains

Princeton Junction to Gaithersburg trains

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Trip Overview

The average train between Princeton Junction and Gaithersburg takes 4h 32m and the fastest train takes 3h 23m. The train service runs several times per day from Princeton Junction to Gaithersburg. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.

4h 32m
Duration: 195 mi
Distance: $369
Average price: Every 4 hours
Frequency

Train, subway

best

Take the train from Princeton Junction Amtrak Station to 30th Street Stationtrain
Take the train from 30th Street Station to Washington Union Stationtrain
Take the subway from Union Station, Red Line Center Platform to Shady Grove, Red Line Center Platformsubway R

3h 35m

$55–689

Princeton Junction to Gaithersburg train times

Trains run every 4 hours between Princeton Junction and Gaithersburg. The earliest departure is at 5:43 AM in the morning, and the last departure from Princeton Junction is at 11:01 PM which arrives into Gaithersburg at 7:39 AM. All services require a transfer at 30th Street Station and take an average of 4h 32m. The schedules shown below are for the next available departures.

Departing Wednesday, October 21, 2026

8:13 AM → 11:47 AM
3h 34m • 2 changes
1:06 PM → 4:29 PM
3h 23m • 2 changes
5:19 PM → 8:48 PM
3h 29m • 2 changes
11:01 PM → 7:39 AM
Arrives next day
8h 38m • 2 changes

Departing Thursday, October 22, 2026

5:43 AM → 9:49 AM
4h 6m • 2 changes
6:40 AM → 10:24 AM
3h 44m • 2 changes
8:13 AM → 11:47 AM
3h 34m • 2 changes
1:06 PM → 4:29 PM
3h 23m • 2 changes
Show more

Departing Friday, October 23, 2026

5:43 AM → 9:49 AM
4h 6m • 2 changes
6:40 AM → 10:24 AM
3h 44m • 2 changes
8:13 AM → 11:47 AM
3h 34m • 2 changes
1:06 PM → 4:29 PM
3h 23m • 2 changes
Show more

Departing Saturday, October 24, 2026

8:07 AM → 11:50 AM
3h 43m • 2 changes
10:00 AM → 2:08 PM
4h 8m • 2 changes
10:53 AM → 3:08 PM
4h 15m • 2 changes
9:00 PM → 7:14 AM
Arrives next day
10h 14m • 2 changes

Departing Sunday, October 25, 2026

8:07 AM → 11:44 AM
3h 37m • 2 changes
10:00 AM → 1:50 PM
3h 50m • 2 changes
11:13 AM → 3:08 PM
3h 55m • 2 changes
9:00 PM → 6:02 AM
Arrives next day
9h 2m • 2 changes

Departing Monday, October 26, 2026

5:43 AM → 9:49 AM
4h 6m • 2 changes
6:40 AM → 10:24 AM
3h 44m • 2 changes
8:13 AM → 11:47 AM
3h 34m • 2 changes
1:06 PM → 4:29 PM
3h 23m • 2 changes
Show more

Departing Tuesday, October 27, 2026

5:43 AM → 9:49 AM
4h 6m • 2 changes
6:40 AM → 10:24 AM
3h 44m • 2 changes
8:13 AM → 11:47 AM
3h 34m • 2 changes
1:06 PM → 4:29 PM
3h 23m • 2 changes
Show more

Frequently asked questions

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