The average bus between Reading and Portsmouth Harbour takes 2h 39m and the fastest bus takes 2h 24m. The bus service runs several times per day from Reading to Portsmouth Harbour. 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 Reading and Portsmouth Harbour. The earliest departure is at 7:57 AM in the morning, and the last departure from Reading is at 11:03 PM which arrives into Portsmouth Harbour at 2:15 AM. All services require a transfer at Heathrow Terminal 5 and take an average of 2h 39m. The schedules shown below are for the next available departures.

2h 29m • 1 change

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2h 40m • 1 change

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2h 35m • 1 change

2h 46m • 1 change

2h 24m • 1 change

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2h 35m • 1 change

2h 46m • 1 change

2h 24m • 1 change

2h 29m • 1 change

2h 35m • 1 change

2h 46m • 1 change

2h 24m • 1 change

2h 29m • 1 change

2h 30m • 1 change

2h 45m • 1 change

2h 40m • 1 change

2h 35m • 1 change

2h 32m • 1 change

2h 42m • 1 change

2h 27m • 1 change

2h 43m • 1 change

2h 29m • 1 change

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2h 24m • 1 change
Want to know about travelling from Reading to Portsmouth Harbour? 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 Reading to Portsmouth Harbour. However, there are services departing from Reading station and arriving at Portsmouth Harbour station via Heathrow Terminal 5. The journey, including transfers, takes approximately 2h 39m.
Reading to Portsmouth Harbour bus services, operated by RailAir, depart from Reading RailAir station.
Reading to Portsmouth Harbour bus services, operated by RailAir, arrive at St Georges Square station.
Book your Reading to Portsmouth Harbour bus tickets online with RailAir and National Express.
The distance between Reading and Portsmouth Harbour is 73.9 km. The road distance is 144 km.
You can take a bus from Reading RailAir to Portsmouth Harbour via Heathrow Terminal 5 and St Georges Square in around 3h 17m.