The average bus between Port Jefferson and Southold takes 2h 19m and the fastest bus takes 1h 47m. There is a bus service every few hours from Port Jefferson to Southold. 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 Port Jefferson and Southold. The earliest departure is at 5:51 AM in the morning, and the last departure from Port Jefferson is at 9:50 PM which arrives into Southold at 6:40 AM. All services require a transfer, and take on average 2h 19m. The schedules shown below are for the next available departures.

1h 49m • 1 change

1h 53m • 1 change

2h 1m • 1 change

2h 1m • 1 change

1h 49m • 1 change

1h 53m • 1 change

2h 1m • 1 change

2h 1m • 1 change

1h 49m • 1 change

1h 53m • 1 change

2h 1m • 1 change

2h 1m • 1 change
Want to know about travelling from Port Jefferson to Southold? 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 Port Jefferson to Southold. However, there are services departing from Port Jefferson station and arriving at Southold station via Riverhead LIRR. The journey, including transfers, takes approximately 2h 19m.
Port Jefferson to Southold bus services, operated by Suffolk County Transit, depart from N Country Rd/Oakland Ave station.
Port Jefferson to Southold bus services, operated by Suffolk County Transit, arrive at NYS 25/Youngs Ave station.
The distance between Port Jefferson and Southold is 55.5 km. The road distance is 71 km.
You can take a bus from N Country Rd/Oakland Ave to NYS 25/Youngs Ave via Riverhead LIRR in around 2h 15m.