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Trains from Cardiff Bay to Carmarthen

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Great Western Railway
Transport for Wales

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  1. Home
  2. Train times
  3. Cardiff Bay to Carmarthen

Trains to Carmarthen from Cardiff Bay

First train

05:56

Last train

00:11

Departure stationCardiff Bay
Arrival stationCarmarthen
Journey time

From 2h 2m

Distance

56 miles (90 km)

Frequency

34 trains per day

Changes

1 change

Train operators

Great Western Railway, Transport for Wales

What are the train times from Cardiff Bay to Carmarthen?

Check out the next trains departing from Cardiff Bay to Carmarthen for Tuesday 10th November 2026 using our handy timetable below, including platform and live travel information. You can view the full day timetable or search for a different date here.
DepartsArrivesDuration
, 2 changes
, 2 changes
, 2 changes
, 2 changes
, 3 changes
, 2 changes
, 2 changes
, 2 changes
, 2 changes
, 2 changes

What are the train times from Cardiff Bay to Carmarthen?

Get from Cardiff Bay to Carmarthen in as little as 2 hours 2 minutes on the fastest trains, so you can make the most of your time.

The average train journey from Cardiff Bay to Carmarthen takes around 3 hours 20 minutes. There are around 34 trains that operate on this route daily.

As there are no direct trains between Cardiff Bay and Carmarthen, you'll need to make 1 change.

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

Booking in advance often results in cheaper ticket prices.

With our Journey Planner, you can check live train times, compare prices and check routes.

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

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

How do you get to Carmarthen from Cardiff Bay?

To travel to Carmarthen from Cardiff Bay, you can take the train - on average, the journey takes around 3 hours and 20 minutes, though the fastest trains can take 2 hours and 2 minutes. Use our Journey Planner to get more information.

How long is the train ride from Cardiff Bay to Carmarthen?

Trains from Cardiff Bay to Carmarthen take an average of 3 hours and 20 minutes, although on the fastest services it can take just 2 hours and 2 minutes. You'll usually find 34 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 Carmarthen by train?

The quickest journey time between Cardiff Bay and Carmarthen by train is 2 hours and 2 minutes.

Are there direct trains from Cardiff Bay to Carmarthen?

No, there are no direct trains running from Cardiff Bay to Carmarthen, you’ll usually need to make at least 1 change during the journey.

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

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 Carmarthen 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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