How much does a train ticket from Cardiff to Merthyr Tydfil cost?

The average train ticket price from Cardiff to Merthyr Tydfil is $9. The best way to find train tickets from Cardiff to Merthyr Tydfil 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 Cardiff to Merthyr Tydfil?

A train trip between Cardiff and Merthyr Tydfil is around 1h 1m, although the fastest train will take about 56m. This is the time it takes to travel the 21 miles that separates the two cities.

How many daily trains are there between Cardiff and Merthyr Tydfil?

The number of trains from Cardiff to Merthyr Tydfil can differ depending on the day of the week. On average, there are 10. Some trains are direct while others have layovers. Simplify your train trip from Cardiff to Merthyr Tydfil by comparing and selecting the train that fits your travel style and budget on Busbud.

Which train companies travel from Cardiff to Merthyr Tydfil?

When taking the train from Cardiff to Merthyr Tydfil, you can travel comfortably and safely with Transport for Wales.

Train Cardiff to Merthyr Tydfil from $8

Previously seen trips

Next departures for Cardiff to Merthyr Tydfil on November 20
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Train	3:30pm	Cardiff Queen Street	59m	4:29pm	Merthyr Tydfil	No tags
Train	4:00pm	Cardiff Queen Street	59m	4:59pm	Merthyr Tydfil	No tags
Train	4:30pm	Cardiff Queen Street	59m	5:29pm	Merthyr Tydfil	No tags
Train	5:00pm	Cardiff Queen Street	59m	5:59pm	Merthyr Tydfil	No tags
Train	5:30pm	Cardiff Queen Street	59m	6:29pm	Merthyr Tydfil	No tags

Get from Cardiff to Merthyr Tydfil

This route is served by train only

The journey takes about 1 hour 1 minute and with fares starting at just $9, it presents an excellent value for a comfortable ride.

10train per day

1h 1mAverage Duration

21 milesDistance

1kgCO₂ emissions

Train Companies

Transport for Wales

3.5/58 reviews

Staff5

Timeliness5

Cleanliness5

Wifi5

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 $9

Train and bus companies in GB:Amtrak, Trenitalia, Renfe, VIA Rail Canada, RegioJet, FlixTrain, CrossCountry

Frequently asked questions about traveling from Cardiff to Merthyr Tydfil by train

How much does a train ticket from Cardiff to Merthyr Tydfil cost?
How long is the train trip from Cardiff to Merthyr Tydfil?
How many daily trains are there between Cardiff and Merthyr Tydfil?
Which train companies travel from Cardiff to Merthyr Tydfil?

Find cheapest prices for trains

Price is for a one-way ticket for one passenger and based on past searches.

Best price found

11/18

$9

11/19

$9

Today

$8

11/21

$9

11/22

$9

11/23

$9

11/24

$9

11/25

$9

The cheapest trip from Cardiff to Merthyr Tydfil was searched and found on Nov 20, 2025 with a price of $8

To save money and be sure you have the best seat, it's a good idea to buy your train tickets from Cardiff to Merthyr Tydfil, as early as possible.

You can expect to pay from $8 to $9 for a train ticket from Cardiff to Merthyr Tydfil based on the last 2 days. You can expect to find the cheapest price for the trip at $9 which is on 2025-11-21.