Fastest journey1hr 20m
Travelling from London to Portsmouth by train
The fastest trains from London to Portsmouth take around 1 hour and 20 minutes, covering a distance of approximately 105 kilometres. There are frequent services on the rail route between London and Portsmouth.
Direct trains run between London and Portsmouth.
We usually find around 59 direct trains on the route from London to Portsmouth every weekday.
Trains are typically more frequent on weekends, when we found around 72 departures. The duration is normally about 1 hour and 20 minutes, whatever time you make the journey.
On weekdays the earliest direct train to Portsmouth is usually scheduled to depart London around 05:00 and the last train is around 00:50. At weekends the first train of the day leaves London around 05:20, and the last at 23:45.
Route map is indicative only and may differ from the optimal route. Actual routes will be displayed when searching.
When to book London to Portsmouth train tickets?
The earlier you book the better, and the cheapest tickets we've found for trains from London to Portsmouth are £5.00.
Trains departing 30 days in advance will cost around £5 while booking 7 days in advance the price is around £8. Booking on the day of travel is likely to be more expensive, so it is worth booking in advance if you can to save money.
Trains in the UK usually open for booking around 3 months in advance. If booking is not yet open for your dates then you can set a booking alert to receive an email on the day that the cheapest tickets are released for your journey from London to Portsmouth by train.
Which trains operate between London and Portsmouth?
South West Trains is the rail operator that operates on the route from London to Portsmouth.
You can check which train you’ll be travelling on by looking for the train name in search results.
Other journeys to Fratton View all journeys to Portsmouth
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