How much does a cheap train ticket from Swansea to Carmarthen cost?

The average train ticket price from Swansea to Carmarthen is £15. The best way to find cheap 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 train 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 include transferring trains. 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.

Train Swansea to Carmarthen from £14

Next train departures

Next departures from Swansea to Carmarthen on 20 November
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	07:40	Swansea	44m	08:24	Carmarthen	Cheapest
Train	08:17	Swansea	41m	08:58	Carmarthen	Fastest
Train	07:40	Swansea	44m	08:24	Carmarthen	No tags
Train	08:00	Swansea	47m	08:47	Carmarthen	No tags
Train	08:49	Swansea	47m	09:36	Carmarthen	No tags

Last refresh of the prices: Last Sunday at 22:58 GMT.

Compare 2 ways to travel from Swansea to Carmarthen

We recommend taking the bus

Among the sustainable travel choices, the bus stands out as a good way to reach Carmarthen. The journey takes about 45 minutes and with fares starting at just £8, it presents an excellent value for a comfortable ride.

1bus per day

45mAverage duration

23 milesDistance

1kgCO₂ emissions

	Average price	Average duration	CO₂ emissions	Actions
Bus	Average price£8 - £10	Average duration45m	CO₂ emissions 1kg CO₂e
Train	Average price£14 - £22	Average duration47m	CO₂ emissions 1kg CO₂e

Train Companies

Transport for Wales

3.5/58 reviews

Staff5

Timeliness5

Cleanliness5

WiFi5

Great Western Railway

4/542 reviews

Staff5

Timeliness4.7

Cleanliness4.7

WiFi4

GB train companies: Amtrak, Trenitalia, Renfe, VIA Rail Canada, RegioJet, FlixTrain, CrossCountry

Frequently asked questions about travelling from Swansea to Carmarthen by train

How much does a cheap train ticket from Swansea to Carmarthen cost?
The average train ticket price from Swansea to Carmarthen is £15. The best way to find cheap 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 train 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 include transferring trains. 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

16/11

£14

17/11

£14

Today

£14

19/11

£14

20/11

£14

21/11

£14

22/11

£14

23/11

£14

The cheapest trip from Swansea to Carmarthen was searched and found on 19 Nov 2025 with a price of £14

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 £14 to £21 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 £14, which is on 2025-11-19.

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.