The average train between Chatham and Ronkonkoma takes 2h 46m and the fastest train takes 2h 24m. There is an hourly train service from Chatham 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 Chatham and Ronkonkoma. The earliest departure is at 5:35 AM in the morning, and the last departure from Chatham is at 11:35 PM which arrives into Ronkonkoma at 2:37 AM. All services require a transfer, and take on average 2h 46m. The schedules shown below are for the next available departures.

2h 49m • 1 change

2h 27m • 1 change

2h 39m • 1 change

2h 29m • 1 change

3h 9m • 1 change

3h 10m • 1 change

3h 6m • 1 change

3h 9m • 1 change

3h 9m • 1 change

3h 10m • 1 change

3h 6m • 1 change

3h 9m • 1 change
Want to know about travelling from Chatham 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 Chatham to Ronkonkoma. However, there are services departing from Chatham station and arriving at Ronkonkoma station via New York Penn Station station. The journey, including transfers, takes approximately 2h 46m.
Chatham to Ronkonkoma train services, operated by NJ Transit, depart from Chatham station.
Chatham to Ronkonkoma train services, operated by NJ Transit, arrive at Ronkonkoma station.
The distance between Chatham and Ronkonkoma is 107.4 km. The road distance is 123 km.
You can take a train from Chatham to Ronkonkoma via New York Penn Station in around 2h 30m.