Next departures for Swansea to Carmarthen on November 20
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Train
Swansea
Carmarthen
Cheapest
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Swansea
Carmarthen
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Train
Swansea
Carmarthen
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Train
Swansea
Carmarthen
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Train
Swansea
Carmarthen
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Last refresh of the prices: Last Sunday at 10:58 PM GMT.
Compare 2 ways to go from Swansea to Carmarthen
We recommend taking the bus
Among the sustainable travel choices, the bus stands out as the good way to reach Carmarthen. The journey takes about 45 minutes and with fares starting at just $10, 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 $18
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 $19
Frequently asked questions about traveling from Swansea to Carmarthen by train
How much does a train ticket from Swansea to Carmarthen cost?
The average train ticket price from Swansea to Carmarthen is $19. The best way to find train tickets from Swansea to Carmarthen 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 Swansea to Carmarthen?
A train trip between Swansea and Carmarthen is around 47m, although the fastest train will take about 38m. This is the time it takes to travel the 23 miles that separates the two cities.
How many daily trains are there between Swansea and Carmarthen?
The number of trains from Swansea to Carmarthen can differ depending on the day of the week. On average, there are 11. Some trains are direct while others have layovers. Simplify your train trip from Swansea to Carmarthen by comparing and selecting the train that fits your travel style and budget on Busbud.
Which train companies travel from Swansea to Carmarthen?
When taking the train from Swansea to Carmarthen, 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.
Best price found
11/17
$18
11/18
$18
Today
$18
11/20
$18
11/21
$18
11/22
$18
11/23
$18
11/24
$18
The cheapest trip from Swansea to Carmarthen was searched and found on Nov 19, 2025 with a price of $18
To save money and be sure you have the best seat, it's a good idea to buy your train tickets from Swansea to Carmarthen, as early as possible.
You can expect to pay from $18 to $27 for a train ticket from Swansea to Carmarthen based on the last 2 days. You can expect to find the cheapest price for the trip at $18 which is on 2025-11-21.
Usually Great Western Railway, Transport for Wales 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.
The cheapest trip from Swansea to Carmarthen was searched and found on Nov 19, 2025 with a price of $18
