The average train between Princeton Junction and Ronkonkoma takes 2h 53m and the fastest train takes 2h 31m. There is an hourly train service from Princeton Junction to Ronkonkoma. 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 hourly between Princeton Junction and Ronkonkoma. The earliest departure is at 12:19 AM at night, and the last departure from Princeton Junction is at 11:29 PM which arrives into Ronkonkoma at 2:32 AM. All services require a transfer, and take on average 2h 53m. The schedules shown below are for the next available departures.

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2h 56m • 1 changeWant to know about travelling from Princeton Junction to Ronkonkoma? 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 Princeton Junction to Ronkonkoma. However, there are services departing from Princeton Jct. station and arriving at Ronkonkoma station via New York Penn Station. The journey, including transfers, takes approximately 2h 53m.
Princeton Junction to Ronkonkoma train services, operated by NJ Transit, depart from Princeton Jct. station.
Princeton Junction to Ronkonkoma train services, operated by Long Island Rail Road, arrive at Ronkonkoma station.
The distance between Princeton Junction and Ronkonkoma is 138.9 km. The road distance is 156 km.
You can take a train from Princeton Jct. to Ronkonkoma via New York Penn Station in around 2h 59m.