Next departures for Carmarthen to Cardiff on November 19
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Train
Carmarthen
Cardiff Central
Cheapest
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Carmarthen
Cardiff Central
Fastest
Train
Carmarthen
Cardiff Central
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Train
Carmarthen
Cardiff Central
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Train
Carmarthen
Cardiff Central
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Next departures for Carmarthen to Cardiff on November 20
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
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Last refresh of the prices: Yesterday at 7:27 PM GMT.
Compare 3 ways to go from Carmarthen to Cardiff
We recommend carpooling
Among the sustainable travel choices, the carpool stands out as the good way to reach Cardiff. The journey takes about 1 hour 50 minutes and with fares starting at just $16, it presents an excellent value for a comfortable ride.
Based on 8 reviews, the company was rated 3.5 stars on Busbud. Travelers were especially satisfied with the staff and the timeliness but often complained with the ticket access. Transport for Wales ticket prices on this trip start at $12
Transport for Wales Carmarthen Cardiff recent customer reviews
Based on 42 reviews, the company was rated 4 stars on Busbud. Travelers were especially satisfied with the staff and the seats but often complained with the wifi. Great Western Railway ticket prices on this trip start at $11
Frequently asked questions about traveling from Carmarthen to Cardiff by train
How much does a train ticket from Carmarthen to Cardiff cost?
The average train ticket price from Carmarthen to Cardiff is $16. The best way to find 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 trains 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 have layovers. 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.
What are the best sights and things to do in Cardiff?
Once in Cardiff, you can explore the city. The top sights and things to do are Brecon Beacons National Park, Cardiff International White Water, St John the Baptist Church, Cardiff Castle, Wales Millennium Centre.
Find cheapest prices for trains
Price is for a one-way ticket for one passenger and based on past searches.
Best price found
11/17
$11
11/18
$11
Today
$11
11/20
$11
11/21
$12
11/22
$16
11/23
$18
11/24
No data
The cheapest trip from Carmarthen to Cardiff was searched and found on Nov 17, 2025 with a price of $11
To 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 $11 to $56 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 $11 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 destination
The 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 $16 on average. If you're on a budget, you'll find cheap tickets from $11. 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!
The cheapest trip from Carmarthen to Cardiff was searched and found on Nov 17, 2025 with a price of $11
The train is the cheapest travel choice for this destination
