The average bus between Brentwood and Islip takes 51 min and the fastest bus takes 45 min. There is an hourly bus service from Brentwood 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 Brentwood and Islip. The earliest departure is at 6:06 AM in the morning, and the last departure from Brentwood is at 10:06 PM which arrives into Islip at 10:55 PM. All services require a transfer, and take on average 51 min. The schedules shown below are for the next available departures.

48 min • 1 change

48 min • 1 change

50 min • 1 change

49 min • 1 change

50 min • 1 change

50 min • 1 change

50 min • 1 change

50 min • 1 change

50 min • 1 change

50 min • 1 change

50 min • 1 change

50 min • 1 change
Want to know about travelling from Brentwood 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 Brentwood to Islip. However, there are services departing from Brentwood station and arriving at Islip station via Bay Shore LIRR. The journey, including transfers, takes approximately 51 min.
Brentwood to Islip bus services, operated by Suffolk County Transit, depart from Brentwood Rd/Third Ave station.
Brentwood to Islip bus services, operated by Suffolk County Transit, arrive at Islip Town Hall station.
The distance between Brentwood and Islip is 6.5 km. The road distance is 14 km.
You can take a bus from Brentwood Rd/Third Ave to Islip Town Hall via Bay Shore LIRR in around 56 min.