The average train between Southampton and Heathrow takes 2h 1m and the fastest train takes 1h 43m. There is a train service every few hours from Southampton to Heathrow. 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. 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 at 10:22 PM. All services require a transfer at Reading and take an average of 2h 1m. The schedules shown below are for the next available departures.


2h 7m • 2 changes


2h 7m • 2 changes


1h 52m • 2 changes


1h 53m • 2 changes


1h 52m • 2 changes


1h 43m • 2 changes


1h 52m • 2 changes


1h 57m • 2 changes


1h 52m • 2 changes


1h 43m • 2 changes


1h 52m • 2 changes


1h 57m • 2 changes


1h 52m • 2 changes


1h 43m • 2 changes


1h 52m • 2 changes


1h 57m • 2 changes
Want to know about travelling from Southampton to Heathrow? 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. However, there are services departing from Southampton station and arriving at Heathrow station via Reading. The journey, including transfers, takes approximately 2h 1m.
Southampton to Heathrow train services, operated by Cross Country, depart from Southampton Central station.
Southampton to Heathrow train services, operated by Cross Country, arrive at Hayes And Harlington Station.
Book your Southampton to Heathrow train tickets online with Cross Country and Elizabeth Line (TfL).
The distance between Southampton and Heathrow is 91.2 km. The road distance is 121 km.
You can take a train from Southampton Central to Heathrow Terminals 2 & 3 via Reading and Hayes And Harlington Station in around 1h 58m.