The average bus between Portsmouth and South Harrow takes 2h 44m and the fastest bus takes 2h 24m. The bus service runs several times per day from Portsmouth to South 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 4 hours between Portsmouth and South Harrow. The earliest departure is at 3:20 AM at night, and the last departure from Portsmouth is at 8:10 PM which arrives into South Harrow at 10:45 PM. All services require a transfer, and take on average 2h 44m. The schedules shown below are for the next available departures.

2h 26m • 1 change
2h 48m • 1 change
2h 44m • 1 change
2h 48m • 1 change
2h 26m • 1 change
2h 48m • 1 change
2h 44m • 1 change
3h 2m • 1 change
2h 26m • 1 change
2h 48m • 1 change
2h 44m • 1 change
3h 2m • 1 change
2h 26m • 1 change
2h 48m • 1 change
2h 44m • 1 change
3h 2m • 1 change
2h 25m • 1 change
2h 48m • 1 change
2h 44m • 1 change
2h 48m • 1 change
2h 24m • 1 change
2h 34m • 1 change
2h 41m • 1 change
3h 5m • 1 changeWant to know about travelling from Portsmouth to South 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 Portsmouth to South Harrow. However, there are services departing from Portsmouth station and arriving at South Harrow station via Heathrow Central Bus Station station. The journey, including transfers, takes approximately 2h 44m.
Portsmouth to South Harrow bus services, operated by National Express, depart from The Hard Interchange station.
Portsmouth to South Harrow bus services, operated by National Express, arrive at South Harrow Station.
The distance between Portsmouth and South Harrow is 99.6 km. The road distance is 124 km.
You can take a bus from The Hard Interchange to South Harrow Station via Heathrow Central Bus Station in around 2h 43m.