The average bus between Union and Princeton takes 2h 41m and the fastest bus takes 2h 9m. There is a bus service every few hours from Union 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.
Buses run hourly between Union and Princeton. The earliest departure is at 5:20 AM in the morning, and the last departure from Union is at 9:07 PM which arrives into Princeton at 11:30 PM. All services require a transfer, and take on average 2h 41m. The schedules shown below are for the next available departures.

3h 4m • 1 change

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3h 2m • 1 change

2h 9m • 1 change

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2h 24m • 1 change

2h 9m • 1 change

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2h 24m • 1 change

2h 9m • 1 change

2h 21m • 1 change

2h 21m • 1 change

2h 24m • 1 change
Want to know about travelling from Union 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 bus from Union to Princeton. However, there are services departing from Union station and arriving at Princeton station via Port Authority Bus Terminal. The journey, including transfers, takes approximately 2h 41m.
Union to Princeton bus services, operated by NJ Transit, depart from Morris Ave At Adams Ave station.
Union to Princeton bus services, operated by NJ Transit, arrive at Nassau St & Witherspoon St - Palmer Square station.
The distance between Union and Princeton is 51.2 km. The road distance is 268 km.
You can take a bus from Morris Ave At Adams Ave to Nassau St & Witherspoon St - Palmer Square via Port Authority Bus Terminal in around 3h 9m.