The average bus between Portsmouth and Harrow takes 3h 42m and the fastest bus takes 2h 55m. The bus service runs several times per day from Portsmouth 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 twice daily between Portsmouth and 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 Harrow at 12:45 AM. All services require a transfer, and take on average 3h 42m. The schedules shown below are for the next available departures.
Want to know about travelling from Portsmouth 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 Portsmouth to Harrow. However, there are services departing from Portsmouth station and arriving at Harrow station via Heathrow Central Bus Station station. The journey, including transfers, takes approximately 3h 42m.
Portsmouth to Harrow bus services, operated by National Express, depart from The Hard Interchange station.
Portsmouth to Harrow bus services, operated by National Express, arrive at St Georges Centre station.
Book your Portsmouth to Harrow bus tickets online with National Express and Metroline Travel.
The distance between Portsmouth and Harrow is 101.6 km. The road distance is 129 km.
You can take a bus from The Hard Interchange to St Georges Centre via Heathrow Central Bus Station in around 3h 1m.
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