Great Western Railway
Transport for Wales
Looking for the cheapest date to travel?
Within 7 days
Outbound fromWithin 1 month
Outbound fromWithin 3 months
Outbound fromLow prices found by our customers
Each fare is the lowest adult economy ticket fare found by our customers on Trainline. Fares booked further in advance than the dates displayed may be cheaper. Prices are updated daily, subject to change and indicative of price last update. Limited availability. Discount cards and coach journeys excluded, prices exclusive of booking fee.
Trains to Merthyr Tydfil from Carmarthen
It takes an average of 3h 52m to travel from Carmarthen to Merthyr Tydfil by train, over a distance of around 40 miles (65 km). There are normally 25 trains per day travelling from Carmarthen to Merthyr Tydfil and tickets for this journey start from £15.20 when you book in advance.
| First train | 02:55 | |
|---|---|---|
| Last train | 21:43 | |
| Departure station | Carmarthen | |
| Arrival station | Merthyr Tydfil | |
| Journey time | From 2h 54m | |
| Distance | 40 miles (65 km) | |
| Frequency | 25 trains per day | |
| Changes | 1 change | |
| Price | From £15.20 | |
| Train operators |
Travelling from Carmarthen to Merthyr Tydfil by train
If you're planning to travel from Carmarthen to Merthyr Tydfil, we're here to help!
On average, the train journey from Carmarthen to Merthyr Tydfil takes around 3 hours 52 minutes. There are normally 25 trains per day travelling from Carmarthen to Merthyr Tydfil.
You'll have to make 1 change on your journey to Merthyr Tydfil, as there are no direct trains.
Trains on this route are operated by Great Western Railway and Transport for Wales.
Ticket prices start from £15.20 on this route. Save money on your train tickets by booking in advance.
Use our Journey Planner to compare ticket prices and find the cheapest fares.
What do people frequently ask about the train journey from Carmarthen to Merthyr Tydfil?
Want to know more about your journey from Carmarthen to Merthyr Tydfil? We've compiled some of the most frequently asked questions by our customers to help you plan your journey.
Are there direct trains from Carmarthen to Merthyr Tydfil?
What's the distance between Carmarthen and Merthyr Tydfil by train?
Can you travel from Carmarthen to Merthyr Tydfil without taking a flight?
What is the best way to get to Merthyr Tydfil from Carmarthen?
What time is the first train from Carmarthen to Merthyr Tydfil?
What time is the last train from Carmarthen to Merthyr Tydfil?
How often do trains go from Carmarthen to Merthyr Tydfil?
Do you need to prebook train tickets from Carmarthen to Merthyr Tydfil?
Is there a return trip from Carmarthen to Merthyr Tydfil?
How do I find cheap train tickets from Carmarthen to Merthyr Tydfil?
As most UK train companies increase their prices as the departure date approaches, our Trainline team of experts have put together these tips to help you find the cheapest tickets.
1. Book in advance
Train tickets from Carmarthen to Merthyr Tydfil start at £15.20§ one way for a Standard Class ticket if you book in advance. UK train companies usually release Advance tickets up to 12 weeks ahead of time, and these can be cheaper than tickets bought on the day of travel.
2. Sign up to Ticket Alert
If you're planning a trip more than 12 weeks ahead, sign up to our Ticket Alert to get notified when Advance tickets are released for your travel date.
3. Use a Railcard
National Railcards offer a 1/3 off eligible train tickets in the UK and can be a great investment if you travel throughout the year. Buy one with us and you'll be able to store it digitally in our app, so you'll always have it on your travels.
4. Book split tickets
Our handy feature SplitSave will 'split' your train journey into multiple tickets, which can be much cheaper than buying a single ticket. Find out more about split tickets.
5. Travel Off-Peak
If you can be flexible with your travel times, Off-Peak and Super Off-Peak tickets are usually cheaper in the UK. Generally, Off-Peak times are any time at weekends and outside of Monday to Friday morning and evening rush hours.
6. Consider a Season Ticket
Best for commuters, if you catch a train on the same route more than 3 times per week, you could save money with a Season Ticket. With annual, monthly, weekly and flexi options available, find out if a Season Ticket for Carmarthen to Merthyr Tydfil is right for you.
For more money-saving tips on UK and European train travel, read our cheap train tickets guide.
§Advance adult single fare. Excludes booking fee. Prices seen by Trainline customers in the last 30 days. Availability limited.