Next train departures
| Operated by | Vehicle type | Departure time | Departure location | Trip duration | Arrival time | Arrival location | Recommended | Price and booking link |
|---|---|---|---|---|---|---|---|---|
 | Train | Carmarthen | Cardiff Central | Cheapest | ||||
| Train | Carmarthen | Cardiff Central | Fastest | ||||
 | Train | Carmarthen | Cardiff Central | No tags | ||||
| Train | Carmarthen | Cardiff Central | No tags | ||||
| Train | Carmarthen | Cardiff Central | No tags |
Last refresh of the prices: Yesterday at 19:31 GMT.
Compare 3 ways to travel from Carmarthen to Cardiff
Among the sustainable travel choices, the carpool stands out as a good way to reach Cardiff. The journey takes about 1 hour 50 minutes and with fares starting at just £13, it presents an excellent value for a comfortable ride.
Train Companies
Frequently asked questions about travelling from Carmarthen to Cardiff by train
How much does a cheap train ticket from Carmarthen to Cardiff cost?
The average train ticket price from Carmarthen to Cardiff is £12. The best way to find cheap train tickets from Carmarthen to Cardiff is to book your tickets as early as possible. Prices tend to rise as your travel date approaches, so book in advance to secure the best prices!
How long is the train trip from Carmarthen to Cardiff?
A train trip between Carmarthen and Cardiff is around 1h 54m, although the fastest train will take about 1h 30m. This is the time it takes to travel the 55 miles that separates the two cities.
How many daily train are there between Carmarthen and Cardiff?
The number of trains from Carmarthen to Cardiff can differ depending on the day of the week. On average, there are 8. Some trains are direct while others include transferring trains. Simplify your train trip from Carmarthen to Cardiff by comparing and selecting the train that fits your travel style and budget on Busbud.
Which train companies travel from Carmarthen to Cardiff?
When taking the train from Carmarthen to Cardiff, you can travel comfortably and safely with Transport for Wales, Great Western Railway.
Find cheapest prices for trains
Price is for a one-way ticket for one passenger and based on past searches.
The cheapest trip from Carmarthen to Cardiff was searched and found on 19 Nov 2025 with a price of £9To save money and be sure you have the best seat, it's a good idea to buy your train tickets from Carmarthen to Cardiff as early as possible.
You can expect to pay from £9 to £44 for a train ticket from Carmarthen to Cardiff based on the last 2 days. You can expect to find the cheapest price for the trip at £9, which is on 2025-11-20.
Usually Great Western Railway will charge you higher prices for tickets closer to the departure date. To find the best prices, you should be flexible on your date of travel.
What's the cheapest way to go from Carmarthen to Cardiff?
The train is the cheapest travel choice for this destinationThe best way to travel between Carmarthen and Cardiff is by train. By choosing the train, you'll get to save some money as you travel to your destination, as ticket prices cost £12 on average. If you're on a budget, you'll find cheap tickets from £9. If you're looking for the fastest way to get to Cardiff, choose the train, as it will take you from Carmarthen to Cardiff in about 1h 50m – that's the fastest way to get there!
Top Travelled Train Routes
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