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Trains from Carmarthen to Swansea

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Great Western Railway
Transport for Wales

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Each fare is the lowest adult economy ticket fare found by our customers on Trainline. Fares booked further in advance than the dates displayed may be cheaper. Prices are updated daily, subject to change and indicative of price last update. Limited availability. Discount cards and coach journeys excluded, prices exclusive of booking fee.
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  3. Carmarthen to Swansea

Trains to Swansea from Carmarthen

It takes an average of 48m to travel from Carmarthen to Swansea by train, over a distance of around 22 miles (36 km). There are normally 65 trains per day travelling from Carmarthen to Swansea and tickets for this journey start from £6 when you book in advance.

First train

03:38

Last train

00:06

Departure stationCarmarthen
Arrival stationSwansea
Journey time

From 39m

Distance

22 miles (36 km)

Frequency

65 trains per day

Changes

Direct trains available

Price

From £6

Train operators

Great Western Railway, Transport for Wales

Travelling from Carmarthen to Swansea by train

Planning a sunny day out and looking to travel from Carmarthen to Swansea by train? You've come to the right place!

The train from Carmarthen to Swansea usually takes around 50m but can take just 40m on the fastest Transport for Wales services, with around 31 trains running on this popular route per day. Trains are direct, so once you’re on board you can sit back, relax and stay connected with free WiFi available on most services.

If you're heading for a relaxing day at Swansea Beach or want to visit Swansea Castle and museums, use our Journey Planner at the top of the page to search for cheap train tickets – we'll show you how much you can save on your train tickets if you use a Railcard or travel during Off-Peak times.

Keen to book your train tickets from Carmarthen to Swansea? No need to wait, start a search with us today! Want to learn a bit more about the journey first? Find ticket options, tips on booking cheap tickets and our FAQs below including first and last train times.

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

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

How do I get from Carmarthen to Swansea?

You can travel from Carmarthen to Swansea by train in about 48 minutes. With around 65 trains running each day, taking the train is easy. Find out more in our Journey Planner.

How long is the train journey from Carmarthen to Swansea?

On average, the train journey from Carmarthen to Swansea takes around 48 minutes, with 65 trains per day. The duration may vary slightly depending on the specific train and any potential delays. Use our Journey Planner to check out more information.

How much is the train from Carmarthen to Swansea?

Train tickets from Carmarthen to Swansea start from as little as £6, depending on the time of booking, class of service and type of train. Booking in advance often results in cheaper prices.

What is the fastest train from Carmarthen to Swansea?

The fastest trains from Carmarthen to Swansea can cover the distance of 22 miles (36 km) in as little as 39 minutes.

How do I find cheap train tickets from Carmarthen to Swansea?

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. Book in advance

Train tickets from Carmarthen to Swansea start at £6§ one way for a Standard Class ticket if you book in advance. UK train companies usually release Advance tickets up to 12 weeks ahead of time, and these can be cheaper than tickets bought on the day of travel.

2. 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.

3. 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.

4. 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.

5. 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.

6. 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 Carmarthen to Swansea 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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