The average bus between Carshalton and Harrow takes 2h 37m and the fastest bus takes 1h 51m. The bus runs at least 3 times per hour from Carshalton to Harrow. 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 20 minutes between Carshalton and Harrow. The earliest departure is at 4:44 AM at night, and the last departure from Carshalton is at 11:29 PM which arrives into Harrow at 1:45 AM. All services require a transfer, and take on average 2h 37m. The schedules shown below are for the next available departures.

2h 45m • 1 change

2h 44m • 1 change

2h 43m • 1 change

2h 42m • 1 change
Want to know about travelling from Carshalton to Harrow? 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 Carshalton to Harrow. However, there are services departing from Carshalton station and arriving at Harrow station via Heathrow Central Bus Station station. The journey, including transfers, takes approximately 2h 37m.
Carshalton to Harrow bus services, operated by Metrobus, depart from Carshalton High Street station.
Carshalton to Harrow bus services, operated by Metrobus, arrive at Harrow Bus Station.
The distance between Carshalton and Harrow is 26.4 km. The road distance is 50 km.
You can take a bus from Carshalton High Street to Harrow Bus Station via Heathrow Central Bus Station in around 2h 36m.