The average bus between Colchester and Groton takes 2h 35m and the fastest bus takes 1h 17m. The bus service runs several times per day from Colchester to Groton. 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 every 4 hours between Colchester and Groton. The earliest departure is at 7:43 AM in the morning, and the last departure from Colchester is at 10:33 PM which arrives into Groton at 8:50 AM. All services require a transfer, and take on average 2h 35m. The schedules shown below are for the next available departures.

1h 31m • 1 change

1h 17m • 1 change

1h 19m • 1 change
Arrives next day

8h 35m • 1 change

1h 57m • 1 change

1h 31m • 1 change

1h 31m • 1 change

1h 31m • 1 change

1h 57m • 1 change

1h 31m • 1 change

1h 31m • 1 change

1h 31m • 1 change

1h 57m • 1 change

1h 31m • 1 change

1h 31m • 1 change

1h 31m • 1 change

1h 41m • 1 change

1h 31m • 1 change

1h 31m • 1 change

1h 31m • 1 change
Want to know about travelling from Colchester to Groton? 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 Colchester to Groton. However, there are services departing from Colchester station and arriving at Groton station via Bus Station station. The journey, including transfers, takes approximately 2h 35m.
Colchester to Groton bus services, operated by Hedingham & Chambers, depart from Head Street station.
Colchester to Groton bus services, operated by Hedingham & Chambers, arrive at Fleece station.
The distance between Colchester and Groton is 17 km. The road distance is 35 km.
You can take a bus from Head Street to Fleece via Bus Station in around 2h.