The average bus between Harrow and Portsmouth takes 2h 59m and the fastest bus takes 2h 36m. The bus service runs several times per day from Harrow to Portsmouth. 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 Harrow and Portsmouth. The earliest departure is at 7:46 AM in the morning, and the last departure from Harrow is at 11:37 PM which arrives into Portsmouth at 2:18 AM. All services require a transfer, and take on average 2h 59m. The schedules shown below are for the next available departures.

2h 54m • 1 changeArrives next day

2h 43m • 1 changeArrives next day

2h 41m • 1 change
3h 9m • 1 change
2h 59m • 1 change
3h 29m • 1 change
2h 54m • 1 change
3h 9m • 1 change
3h 4m • 1 change
3h 19m • 1 change
3h 19m • 1 change
2h 55m • 1 change
3h • 1 change
3h 10m • 1 change
3h 5m • 1 change
2h 45m • 1 change
3h • 1 change
3h • 1 change
2h 55m • 1 change
3h 9m • 1 change
3h 4m • 1 change
3h 4m • 1 change
3h 19m • 1 change
3h 9m • 1 change
2h 59m • 1 change
3h 29m • 1 change
2h 54m • 1 changeWant to know about travelling from Harrow to Portsmouth? 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 Harrow to Portsmouth. However, there are services departing from Harrow station and arriving at Portsmouth station via Heathrow Central Bus Station station. The journey, including transfers, takes approximately 2h 59m.
Harrow to Portsmouth bus services, operated by First Bus London, depart from Harrow Bus Station.
Harrow to Portsmouth bus services, operated by First Bus London, arrive at University of Portsmouth station.
The distance between Harrow and Portsmouth is 101.6 km. The road distance is 127 km.
You can take a bus from Harrow Bus Station to University of Portsmouth via Heathrow Central Bus Station in around 3h 44m.