The average bus between Islip and Brentwood takes 1h 1m and the fastest bus takes 46 min. There is an hourly bus service from Islip to Brentwood. 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 Brentwood. The earliest departure is at 5:38 AM in the morning, and the last departure from Islip is at 11:06 PM which arrives into Brentwood at 5:27 AM. All services require a transfer, and take on average 1h 1m. The schedules shown below are for the next available departures.

47 min • 1 change

47 min • 1 change

50 min • 1 change

50 min • 1 change

49 min • 1 change

49 min • 1 change

49 min • 1 change

49 min • 1 change

49 min • 1 change

49 min • 1 change

49 min • 1 change

49 min • 1 change
Want to know about travelling from Islip to Brentwood? 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 Brentwood. However, there are services departing from Islip station and arriving at Brentwood station via Bay Shore LIRR. The journey, including transfers, takes approximately 1h 1m.
Islip to Brentwood bus services, operated by Suffolk County Transit, depart from Islip Town Hall station.
Islip to Brentwood bus services, operated by Suffolk County Transit, arrive at Brentwood LIRR station.
The distance between Islip and Brentwood is 6.5 km. The road distance is 15 km.
You can take a bus from Islip Town Hall to Brentwood LIRR via Bay Shore LIRR in around 46 min.