Trains tickets from Carmarthen to Cardiff

Discover your next train travel journey from Carmarthen to Cardiff and book online with ease

Join 75M+ travelers booking 2M+ routes across 85+ countries.
Enjoy our 24/7 customer service to assist you at every step.
Cancel anytime and receive a 100% refund, no reason needed.
TomorrowJun 21
from US$11
SunJun 22
MonJun 23
TueJun 24
WedJun 25
ThuJun 26
FriJun 27
SatJun 28

Train schedules for tomorrow

One passenger / one way

  • This trip is recommended because it is the: Cheapest
    Departure time: June 21 at
    Departure city: Carmarthen
    Departure location: Carmarthen
    Arrival time: June 21 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: June 21 at
    Departure city: Carmarthen
    Departure location: Carmarthen
    Arrival time: June 21 at
    Destination city: Cardiff
    Destination location: Cardiff Central
    Operated by: Transport for WalesTransport for Wales
    Vehicle: TrainDuration:
  • Departure time: June 21 at
    Departure city: Carmarthen
    Departure location: Carmarthen
    Arrival time: June 21 at
    Destination city: Cardiff
    Destination location: Cardiff Central
    Operated by: Great Western RailwayGreat Western Railway
    Vehicle: TrainDuration:
  • Departure time: June 21 at
    Departure city: Carmarthen
    Departure location: Carmarthen
    Arrival time: June 21 at
    Destination city: Cardiff
    Destination location: Cardiff Central
    Operated by: Transport for WalesTransport for Wales
    Vehicle: TrainDuration:
  • Departure time: June 21 at
    Departure city: Carmarthen
    Departure location: Carmarthen
    Arrival time: June 21 at
    Destination city: Cardiff
    Destination location: Cardiff Central
    Operated by: Great Western RailwayGreat Western Railway
    Vehicle: TrainDuration:

Last refresh of the prices: Today at 10:58 AM BST.

Prices and availability are subject to change.

Accepted payments

  • Visa
  • MasterCard
  • American Express
  • China Union Pay
  • Diners Club Canada
  • Discover Click to Pay
  • JCB payment
  • Klarna (Pay over time)
  • Google Pay

Compare 3 ways to go 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 departure7:23am
Distance88 km
Latest train departure10:42pm

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 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 89 km that separates the two cities.

  3. 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 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
06-18
US$11
06-19
US$12
Today
US$11
06-21
US$11
06-22
US$11
06-23
US$11
06-24
US$36
06-25
US$12
busbud logoThe cheapest trip from Carmarthen to Cardiff was searched and found on Jun 21, 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 2025-06-21.

About Train Travel

Train Travel Tips

There are many train stations in the world, check out the 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 105 m, 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 60 m 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 apologize to each passenger.

Will you be returning to Carmarthen by train?

Train from Cardiff to Carmarthen

Why choose Busbud?

The Best Way To Book Bus and Train Tickets

Busbud helps you easily search, compare and book intercity bus tickets on a worlwide scale with our comprehensive list of bus routes and schedules. Use Busbud to book your trip online, in your own language and currency, wherever you are. Busbud partners with safe and reliable bus companies throughout the world such as Greyhound, Eurolines, ALSA, OUIBUS (BlaBlaBus), National Express and many others so you can buy tickets without a worry.

People from around the world trust Busbud

‌

Popular Trains Connecting Carmarthen

Trains Leaving from Carmarthen

Popular Trains Connecting Cardiff

Trains Going to Cardiff