Trains from Cardiff to Portsmouth

Cardiff to Portsmouth train information

Which train company can I use?

The trains connecting Cardiff (East Wales) to Portsmouth (South East England) are run by Cross Country. The services on board will change depending on the train provider.

How long is the train?

There are 103 miles between the two cities and the average duration between Cardiff to Portsmouth is around 3h34m. Train travel is most of the time the fastest way to travel to Portsmouth from Cardiff, and it's also a greener option than driving or taking the plane.

What is the price of the train?

Looking at our data, the best fare to travel by train in the next month is £13.00. This price is based on an adult ticket and does not include the money you can save with a railcard.

Best prices for Cardiff to Portsmouth train tickets

Cardiff - Portsmouth prices calendar

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

Best prices for Cardiff to Portsmouth trains

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

Discount Cardiff - Portsmouth train tickets

The best way to spend less on your Cardiff Portsmouth train ticket must be to have a railcard. While regional railcards exist in some areas, National railcards enable you to make savings on most rail fares across the United Kingdom. Everyone is eligible to at least one of the railcard, even non-UK citizens. National railcards available: 16-25 railcard, Senior discount card, Two together railcard, Family and Friends discount card and Disabled persons railcard.

The main benefit of purchasing a railcard is that you only need a few trips to break even.

You will need to buy at least £88 of train tickets in a year for the railcard to be worth the investment. It corresponds to the price of the card, thirty pounds, divided by the saving, thirty four percent. On every train that you purchase after that, you will spare money.

For instance, train tickets from Cardiff to Portsmouth cost on average £26.11 (1). When dividing £88 by £26.11 (£88/£26.11 = 3.37), you can see that after only 4 one way trips from Portsmouth to Cardiff, the card will have paid for itself.

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

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