Trains from Portsmouth to Southampton

Portsmouth to Southampton train information

• The route connecting Portsmouth, which is in England and Southampton, located in England is well served by trains. Use our travel search engine to search for your ticket and see the rail company for this journey.
• There are 15 miles between Portsmouth to Southampton. Taking the train is often the fastest option to get to Southampton from Portsmouth, and it’s also a greener option than driving your car or flying.
• Prices will vary depending on the day and hour of travel and how far in advance you purchase your ticket.

Best prices for Portsmouth to Southampton train tickets

Portsmouth - Southampton prices calendar

Find the cheapest tickets to travel from Portsmouth to Southampton by train, bus, ride sharing and plane.

Portsmouth - Southampton: the best time to book cheap trains

Price of the ticket when booking in advance or at the last minute

Overall, the earlier you purchase your ticket, the cheaper it gets but there can be some exceptions. We gathered the offers from the past 6 months in order to understand the best time to book your train tickets Portsmouth to Southampton. The results show that booking your train from Portsmouth to Southampton in advance is not always the best option.

We found trains at £10 when booking on the day you're travelling whereas you will need to spend at least £11 if you buy your ticket 1 day in advance. Thus, according to our data, the best time to buy your train ticket is on the day you're travelling as it is 5% cheaper than 1 day in advance.

Best prices for Portsmouth to Southampton trains

We compare train ticket for all major companies to travel between Portsmouth and Southampton by train and find the best prices for the coming days. Take a look at the prices of train tickets Southampton to Portsmouth and find the best deal for your outbound journey.

Discount Portsmouth - Southampton train tickets

The easiest way to pay less on your Portsmouth Southampton train ticket is probably to buy a railcard. While regional railcards are available in some areas, National railcards enable you to spend less on most rail fares across the UK. Everyone is eligible to at least a certain railcard, even non-UK residents. National railcards available: 16-25 discount card, Senior railcard, Two together discount card, Family and Friends railcard and Disabled persons discount card.

• When getting a railcard, the idea is to make savings after several journeys. But is it really relevant when travelling from Portsmouth to Southampton? Grab your calculator, considering:

  A = the cost of the railcard (i.e.: £30)

  B = average discount offered by the railcard (i.e.: 34%)

  C = average fare for a Portsmouth Southampton ticket (i.e.: £50.00)(1)

  Start by dividing A by B: this will give you the budget from which the card will be worthwile. Then divide that number by C. You will see the average number of journeys needed per year to be profitable.

  In our example, A/B = £30/34% = £88.00. Then, 88/£50.00 = 1.76. Your railcard will be worth the investment after on average 2 trips from Portsmouth to Southampton (one way trip).

• The price to get a Disabled persons railcard is £20 while it will cost you £30 to buy the 16-25, Two together, Family and Friends or the Senior railcard. All of them enable you to save 34% off most rail fares for an entire year.

⁽¹⁾Average prices observed over the last 6 months for one way journey