The average train between Southampton and Heathrow Terminal 5 Underground Station takes 1h 54m and the fastest train takes 1h 46m. There is a train service every few hours from Southampton to Heathrow Terminal 5 Underground Station. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Trains run hourly between Southampton and Heathrow Terminal 5 Underground Station. The earliest departure is at 5:15 AM in the morning, and the last departure from Southampton is at 8:15 PM which arrives into Heathrow Terminal 5 Underground Station at 10:01 PM. All services require a transfer at Reading and take an average of 1h 54m. The schedules shown below are for the next available departures.


2h 1m • 2 changes


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2h 2m • 2 changes


1h 51m • 2 changes


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1h 51m • 2 changes


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1h 46m • 2 changes


1h 46m • 2 changes
Want to know about travelling from Southampton to Heathrow Terminal 5 Underground Station? 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 train from Southampton to Heathrow Terminal 5 Underground Station. However, there are services departing from Southampton station and arriving at Heathrow Terminal 5 Underground Station station via Reading. The journey, including transfers, takes approximately 1h 54m.
Southampton to Heathrow Terminal 5 Underground Station train services, operated by Cross Country, depart from Southampton Central station.
Southampton to Heathrow Terminal 5 Underground Station train services, operated by Cross Country, arrive at London Paddington station.
Book your Southampton to Heathrow Terminal 5 Underground Station train tickets online with Cross Country, Great Western Railway (GWR) and Heathrow Express.
The distance between Southampton and Heathrow Terminal 5 Underground Station is 89.7 km. The road distance is 158 km.
You can take a train from Southampton Central to Heathrow Terminal 5 via Reading and London Paddington in around 2h.