Here are this week's cheapest tickets from London to Portsmouth, along with train details. Our users discover these prices, which are updated daily. Given the frequent price changes, please refer to the latest update.
London to Portsmouth Train prices and times
Planning a journey from London to Portsmouth? Trip.com offers train tickets starting from as low as AU$20.09, with average prices for this route around AU$21.10. To ensure you get the most affordable fares, we suggest exploring alternatives like split tickets.
| Departure | Arrival | Operator | Find Tickets |
|---|---|---|---|
03:40 London Blackfriars | 07:46 Portsmouth & Southsea | ![]() ![]() ![]() | Find Tickets |
05:01 London Blackfriars | 07:49 Portsmouth & Southsea | ![]() ![]() | Find Tickets |
05:05 London Victoria | 07:50 Portsmouth & Southsea | ![]() ![]() | Find Tickets |
05:08 London Waterloo | 07:17 Portsmouth & Southsea | ![]() | Find Tickets |
05:12 Vauxhall | 07:17 Portsmouth & Southsea | ![]() | Find Tickets |
05:30 London Waterloo | 07:43 Paris | ![]() | Find Tickets |
London to Portsmouth Train Route Details





How to book cheap train tickets from London to Portsmouth

Season Tickets for frequent travel

Network Railcard for South East England

Traveling in off-peak train times

Get 1/3 off with a Railcard

Split tickets to save an average extra 30%

Book in advance to save an average of 61%

Travel in a group to save 1/3
London to Portsmouth train ticket types
Save money on your trip from London to Portsmouth with suitable train tickets. It's a great way to spend less!

Off-peak & Super Off-peak train tickets
Off-peak tickets are cheaper and offer more flexibility for travel during less busy times. Super Off-Peak tickets are even cheaper and suitable for unconventional schedules.

Return train tickets
This ticket includes both the outbound and return journeys, saving you the time and hassle of purchasing separate tickets. With just one ticket, you can travel smoothly along the same route.

Advance train tickets
As one of the most cost-effective ticket options available, purchasing up to 12 weeks in advance can save you a considerable amount of money.

Season train tickets
These allow unlimited travel between two stations and can save you over 1/3 on train fares.
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