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No matter your reasons for visiting this beautiful port city, enjoy the journey on one of the trains from Cardiff to Southampton. With a plethora of things to do, sights to see and places to eat, there’s something for the whole family. Plan your next trip away with our live departure times below and buy your train tickets from Cardiff to Southampton online here. Did you know if you book them direct you’ll also save on booking fees?

Journey information from Cardiff to Southampton

  • How long is the average journey duration from Cardiff to Southampton? n/a
  • How long is the fastest journey duration from Cardiff to Southampton? n/a
  • When is the first train from Cardiff to Southampton? n/a
  • When is the last train from Cardiff to Southampton? n/a
  • How many services run for Cardiff to Southampton today? 0

The above information is intended as a guide. It may not include timetable alterations because of engineering work, unplanned disruption etc. Please use the journey planner to plan your journey before you travel. Some tickets are subject to restrictions. Please check these before you travel.

The information above refers to direct journeys only. Other journeys may be available by changing train or by using a different London Terminal. At certain times buses may operate some of the journeys shown. Services of all operators on the route shown are included in the figures. Not all tickets may be used on all services.

On many routes, the last journey before services finish for the day departs after midnight. Where this is the case, it is this service (in the early hours of the following morning), and not the last one before midnight that is shown.


Tips on how to book cheaper train tickets

Go Off-Peak

Travelling outside of rush hour not only means cheaper tickets, but you’ll enjoy a quieter carriage on your train from Cardiff to Southampton too!

Get a Railcard

You can save 1/3 on the price of your fare when you use a Railcard. There are loads of options available, from student to seniors and everyone in between. See if you’re eligible today.

Go through our website

When you book your tickets through our website, you’ll avoid having to pay any booking fees. Use our journey planner and book your trip today!

Book your train tickets

When you buy online you'll get the best ticket prices, and no booking fees