Trains tickets from Carmarthen to Cardiff

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Today23 Jun
Tomorrow24 Jun
from US$40
Wed25 Jun
Thu26 Jun
Fri27 Jun
Sat28 Jun
Sun29 Jun
Mon30 Jun

Trains leaving tomorrow

One passenger / one way

  • This trip is recommended because it is the: Cheapest
    Departure time: 24 June at
    Departure city: Carmarthen
    Departure location: Carmarthen
    Arrival time: 24 June at
    Destination city: Cardiff
    Destination location: Cardiff Central
    Operated by: Great Western RailwayGreat Western Railway
    Vehicle: TrainDuration:
  • This trip is recommended because it is the: Fastest
    Departure time: 24 June at
    Departure city: Carmarthen
    Departure location: Carmarthen
    Arrival time: 24 June at
    Destination city: Cardiff
    Destination location: Cardiff Central
    Operated by: Transport for WalesTransport for Wales
    Vehicle: TrainDuration:
  • Departure time: 24 June at
    Departure city: Carmarthen
    Departure location: Carmarthen
    Arrival time: 24 June at
    Destination city: Cardiff
    Destination location: Cardiff Central
    Operated by: Transport for WalesTransport for Wales
    Vehicle: TrainDuration:
  • Departure time: 24 June at
    Departure city: Carmarthen
    Departure location: Carmarthen
    Arrival time: 24 June at
    Destination city: Cardiff
    Destination location: Cardiff Central
    Operated by: Great Western RailwayGreat Western Railway
    Vehicle: TrainDuration:
  • Departure time: 24 June at
    Departure city: Carmarthen
    Departure location: Carmarthen
    Arrival time: 24 June at
    Destination city: Cardiff
    Destination location: Cardiff Central
    Operated by: Transport for WalesTransport for Wales
    Vehicle: TrainDuration:

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Compare 3 ways to travel from Carmarthen to Cardiff

Bus
Average priceUS$11 - US$18Average duration2h 25m
2kg CO₂e5 out of 5 stars
CheapestMost eco-friendly
Train
Average priceUS$11 - US$61Average duration1h 53m
2kg CO₂e5 out of 5 stars
Carpool
Average priceUS$12 - US$12Average duration1h 20m
4kg CO₂e4 out of 5 stars
Fastest
busbud logoBusbud recommends carpooling 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 20 minutes and with fares starting at just US$12, it presents an excellent value for a comfortable ride.

1carpool per day
1h 20mAverage duration
US$12Cheapest ticket
4kgCO₂ emissions

Train Carmarthen to Cardiff: Trip Overview

Please note, this information is subject to change.

Average ticket priceUS$12
Average train trip duration1h 53m
Number of daily trains9.068965517241379
Earliest train departure07:23
Distance55 miles
Latest train departure22:42

Carmarthen to Cardiff Train

Busbud helps you find a train from Carmarthen to Cardiff. Get the best fare and schedule, book a round trip ticket or find trains with WiFi and electrical outlets.

We make sure you can find a train service from Carmarthen to Cardiff from the most reliable train companies operating this trip.

Discover how much the train trip from Carmarthen to Cardiff will cost you. Use our filters and sorting features to find the cheapest train tickets or high-end trains.

Frequently asked questions on the trip Carmarthen - Cardiff

  1. How much does a cheap train ticket from Carmarthen to Cardiff cost?

    The average train ticket price from Carmarthen to Cardiff is US$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!

  2. How long is the train trip from Carmarthen to Cardiff?

    A train trip between Carmarthen and Cardiff is around 1h 53m, although the fastest train will take about 1h 43m. This is the time it takes to travel the 55 miles that separates the two cities.

  3. 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 9.068965517241379. 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.

  4. 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.

Best price found
21/06
US$11
22/06
US$11
Today
US$11
24/06
US$38
25/06
US$12
26/06
No data
27/06
No data
28/06
US$11
busbud logoThe cheapest trip from Carmarthen to Cardiff was searched and found on 21 Jun 2025 with a price of US$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 US$11 to US$58 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 US$11, which is on 2025-06-28.

Usually RDG_GWR 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.

About Train Travel

Train Travel Tips

There are many train stations in the world, explore station pages on Busbud to get all information you need.

Regional train? High-speed train? Whichever train to Cardiff you take, you’ll help reduce the environmental impact and carbon footprint of your trip. As you watch the landscapes unfold before your eyes, you can tell yourself that with this choice, you are making sure they remain protected.

With up to 30x less CO2 emissions for your train journey between Carmarthen and Cardiff, the train is an ecological alternative to flights or personal cars.

Make a music playlist for your train ride from Carmarthen to Cardiff and enjoy the scenery to tunes from your own personal soundtrack.

Did you know?

The magnetic levitation train (Maglev for short) is currently the fastest train in the world. With a speed of 603 km/ h, it is closely followed by the French high-speed train (574.8 km / h) which remains in 2020, the fastest train to date

One of the deepest train stations in the world is in Kiev. Located at a depth of 105m, it was designed in this way to serve as a shelter in the event of an attack. The second deepest station is in China. Badaling station is located 60m under the Great Wall of China!

Japanese trains are always on time. It is extremely infrequent to see breakdowns during peak periods. In the event of a delay of more than 5 minutes, the crew will personally apologise to each passenger.

Will you be returning to Carmarthen by train?

Train from Cardiff to Carmarthen

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Popular Trains Connecting Carmarthen

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