The average bus between Southampton and Port Jefferson takes 2h 56m and the fastest bus takes 1h 55m. There is a bus service every few hours from Southampton to Port Jefferson. 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 Southampton and Port Jefferson. The earliest departure is at 5:05 AM in the morning, and the last departure from Southampton is at 8:12 PM which arrives into Port Jefferson at 10:07 PM. All services require a transfer, and take on average 2h 56m. The schedules shown below are for the next available departures.

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Want to know about travelling from Southampton to Port Jefferson? 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 Southampton to Port Jefferson. However, there are services departing from Southampton station and arriving at Port Jefferson station via Riverhead LIRR. The journey, including transfers, takes approximately 2h 56m.
Southampton to Port Jefferson bus services, operated by Suffolk County Transit, depart from Nugent St/Windmill Ln station.
Southampton to Port Jefferson bus services, operated by Suffolk County Transit, arrive at Mather Hospital station.
The distance between Southampton and Port Jefferson is 57.5 km. The road distance is 73 km.
You can take a bus from Nugent St/Windmill Ln to Mather Hospital via Riverhead LIRR in around 2h 57m.