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Trains from Cardiff Bay to Portsmouth Harbour

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CrossCountry
Great Western Railway

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  1. Home
  2. Train times
  3. Cardiff Bay to Portsmouth Harbour

Trains to Portsmouth Harbour from Cardiff Bay

First train

06:08

Last train

22:54

Departure stationCardiff Bay
Arrival stationPortsmouth Harbour
Journey time

From 3h 43m

Distance

101 miles (162 km)

Frequency

17 trains per day

Changes

2 changes

Train operators

CrossCountry, Great Western Railway, South Western Railway, Transport for Wales

Travel by train from Cardiff Bay to Portsmouth Harbour

Looking to travel from Cardiff Bay to Portsmouth Harbour by train? You've come to the right place!

Generally, the train from Cardiff Bay to Portsmouth Harbour takes around 5 hours 50 minutes, but can take just 3 hours 43 minutes on the fastest services. There are up to 17 trains per day from Cardiff Bay to Portsmouth Harbour.

You'll need to make 2 changes along the way as there aren't any direct services on this line.

Great Western Railway, Transport for Wales, South Western Railway and CrossCountry trains operate on this route.

Booking early is one of the most effective ways to save money.

Start your search for train tickets from Cardiff Bay to Portsmouth Harbour in our Journey Planner.

What do people frequently ask about the train journey from Cardiff Bay to Portsmouth Harbour?

Want to know more about your journey from Cardiff Bay to Portsmouth Harbour? We've compiled some of the most frequently asked questions by our customers to help you plan your journey.

How do you get to Portsmouth Harbour from Cardiff Bay?

To travel to Portsmouth Harbour from Cardiff Bay, you can take the train - on average, the journey takes around 5 hours and 50 minutes, though the fastest trains can take 3 hours and 43 minutes. Use our Journey Planner to get more information.

How long is the train ride from Cardiff Bay to Portsmouth Harbour?

Trains from Cardiff Bay to Portsmouth Harbour take an average of 5 hours and 50 minutes, although on the fastest services it can take just 3 hours and 43 minutes. You'll usually find 17 trains per day on this route, so use our Journey Planner to check specific dates as times may vary.

What is the quickest journey time between Cardiff Bay and Portsmouth Harbour by train?

The quickest journey time between Cardiff Bay and Portsmouth Harbour by train is 3 hours and 43 minutes.

Are there direct trains from Cardiff Bay to Portsmouth Harbour?

No, there are no direct trains running from Cardiff Bay to Portsmouth Harbour, you’ll usually need to make at least 2 changes during the journey.

How do I find cheap train tickets from Cardiff Bay to Portsmouth Harbour?

As most UK train companies increase their prices as the departure date approaches, our Trainline team of experts have put together these tips to help you find the cheapest tickets.

1. Sign up to Ticket Alert

If you're planning a trip more than 12 weeks ahead, sign up to our Ticket Alert to get notified when Advance tickets are released for your travel date.

2. Use a Railcard

National Railcards offer a 1/3 off eligible train tickets in the UK and can be a great investment if you travel throughout the year. Buy one with us and you'll be able to store it digitally in our app, so you'll always have it on your travels.

3. Book split tickets

Our handy feature SplitSave will 'split' your train journey into multiple tickets, which can be much cheaper than buying a single ticket. Find out more about split tickets.

4. Travel Off-Peak

If you can be flexible with your travel times, Off-Peak and Super Off-Peak tickets are usually cheaper in the UK. Generally, Off-Peak times are any time at weekends and outside of Monday to Friday morning and evening rush hours.

5. Consider a Season Ticket

Best for commuters, if you catch a train on the same route more than 3 times per week, you could save money with a Season Ticket. With annual, monthly, weekly and flexi options available, find out if a Season Ticket for Cardiff Bay to Portsmouth Harbour is right for you.

For more money-saving tips on UK and European train travel, read our cheap train tickets guide.

§Advance adult single fare. Excludes booking fee. Prices seen by Trainline customers in the last 30 days. Availability limited.
† Average savings on advance fares booked at least one week before day of travel vs Anytime fares purchased on day of travel. Subject to availability. Excludes coach.

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