The average bus between Islip and Sag Harbor takes 4h 4m and the fastest bus takes 3h 23m. There is a bus service every few hours from Islip to Sag Harbor. 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 Islip and Sag Harbor. The earliest departure is at 5:56 AM in the morning, and the last departure from Islip is at 10:55 PM which arrives into Sag Harbor at 8:32 AM. All services require a transfer at Patchogue LIRR and take an average of 4h 4m. The schedules shown below are for the next available departures.


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Want to know about travelling from Islip to Sag Harbor? 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 Islip to Sag Harbor. However, there are services departing from Islip station and arriving at Sag Harbor station via Riverhead LIRR. The journey, including transfers, takes approximately 4h 4m.
Islip to Sag Harbor bus services, operated by Suffolk County Transit, depart from Patchogue LIRR station.
Islip to Sag Harbor bus services, operated by Suffolk County Transit, arrive at Main St/Washington St station.
The distance between Islip and Sag Harbor is 82.8 km. The road distance is 128 km.
You can take a bus from Islip Town Hall to Main St/Washington St via Patchogue LIRR and Riverhead LIRR in around 4h 29m.