The average train between Portsmouth International Port and Heathrow Terminals 2 & 3 takes 2h 50m and the fastest train takes 2h 19m. There is an hourly train service from Portsmouth International Port to Heathrow Terminals 2 & 3. 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 Portsmouth International Port and Heathrow Terminals 2 & 3. The earliest departure is at 4:35 AM at night, and the last departure from Portsmouth International Port is at 10:37 PM which arrives into Heathrow Terminals 2 & 3 at 6:22 AM. All services require a transfer at London Waterloo Station and take an average of 2h 50m. The schedules shown below are for the next available departures.


2h 32m • 2 changes


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2h 34m • 2 changes


2h 42m • 2 changes


2h 33m • 2 changes


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2h 39m • 2 changes
Want to know about travelling from Portsmouth International Port to Heathrow Terminals 2 & 3? 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 Portsmouth International Port to Heathrow Terminals 2 & 3. However, there are services departing from Portsmouth International Port station and arriving at Heathrow Terminals 2 & 3 station via London Waterloo. The journey, including transfers, takes approximately 2h 50m.
Portsmouth International Port to Heathrow Terminals 2 & 3 train services, operated by South Western Railway, depart from Portsmouth & Southsea station.
Portsmouth International Port to Heathrow Terminals 2 & 3 train services, operated by South Western Railway, arrive at London Waterloo station.
Book your Portsmouth International Port to Heathrow Terminals 2 & 3 train tickets online with South Western Railway, London Underground (Tube) and 2 other operators.
The distance between Portsmouth International Port and Heathrow Terminals 2 & 3 is 85.6 km. The road distance is 147 km.
South Western Railway operates a train from Portsmouth & Southsea to London Waterloo every 30 minutes. Tickets cost £30–70 and the journey takes 1h 31m.