The average train between Grays and Portsmouth takes 2h 41m and the fastest train takes 2h 18m. The train runs at least 2 times per hour from Grays to Portsmouth. 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 every 30 minutes between Grays and Portsmouth. The earliest departure is at 4:46 AM at night, and the last departure from Grays is at 11:42 PM which arrives into Portsmouth at 7:16 AM. All services require a transfer at West Ham and take an average of 2h 41m. The schedules shown below are for the next available departures.


2h 43m • 2 changes

2h 56m • 2 changes

2h 21m • 2 changes

2h 34m • 2 changes

2h 59m • 2 changes

2h 53m • 2 changes

2h 27m • 2 changes

2h 25m • 2 changes

2h 59m • 2 changes

2h 53m • 2 changes

2h 27m • 2 changes

2h 25m • 2 changesWant to know about travelling from Grays to Portsmouth? 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 Grays to Portsmouth. However, there are services departing from Grays station and arriving at Portsmouth station via Portsmouth & Southsea. The journey, including transfers, takes approximately 2h 41m.
Grays to Portsmouth train services, operated by c2c, depart from London Waterloo station.
Grays to Portsmouth train services, operated by c2c, arrive at Portsmouth & Southsea station.
Book your Grays to Portsmouth train tickets online with c2c, London Underground (Tube) and South Western Railway.
The distance between Grays and Portsmouth is 124.2 km. The road distance is 155 km.
South Western Railway operates a train from London Waterloo to Portsmouth & Southsea every 30 minutes. Tickets cost £29–65 and the journey takes 1h 31m.