The average bus between Southold and Islip takes 3h 53m and the fastest bus takes 2h 43m. There is a bus service every few hours from Southold to Islip. 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 Southold and Islip. The earliest departure is at 4:55 AM at night, and the last departure from Southold is at 8:13 PM which arrives into Islip at 6:11 AM. All services require a transfer at Riverhead LIRR and take an average of 3h 53m. The schedules shown below are for the next available departures.


3h 54m • 2 changes


4h • 2 changes


3h 29m • 2 changes


3h 25m • 2 changes


2h 43m • 2 changes


2h 58m • 2 changes


2h 58m • 2 changes


3h 18m • 2 changes


2h 53m • 2 changes


3h 8m • 2 changes


3h 47m • 2 changes


3h 47m • 2 changes


2h 51m • 2 changes


3h 6m • 2 changes


3h 45m • 2 changes


3h 45m • 2 changes
Want to know about travelling from Southold to Islip? 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 Southold to Islip. However, there are services departing from Southold station and arriving at Islip station via Riverhead LIRR. The journey, including transfers, takes approximately 3h 53m.
Southold to Islip bus services, operated by Suffolk County Transit, depart from NYS 25/Youngs Ave station.
Southold to Islip bus services, operated by Suffolk County Transit, arrive at Islip Town Hall station.
The distance between Southold and Islip is 75.7 km. The road distance is 104 km.
You can take a bus from NYS 25/Youngs Ave to Islip Town Hall via Riverhead LIRR and Patchogue LIRR in around 3h 49m.