- Must visit
Cyfarthfa Castle Museum and Art Gallery
Museum in Cyfarthfa Park covering ironmaking, local art and social history inside a grand 19th-century mansion.
Cheapest price
£6
Average price
£6
Fastest journey
1 h 5 m
Average duration
1 h 5 m
Trains per day
1
Distance
33 km
The best way to find a cheap train ticket from Cardiff to Merthyr Tydfil is to book your journey as far in advance as possible and to avoid travelling at rush hour.
The average ticket from Cardiff to Merthyr Tydfil will cost around £6 if you buy it on the day, but you can find cheap train tickets today for only £6.
Of the 1 trains that leave Cardiff for Merthyr Tydfil every day 1 travel direct so it’s quite easy to avoid journeys where you’ll have to change along the way.
These direct trains cover the 33 km distance in an average of 1 h 5 m but if you time it right, some trains will get you there in just 1 h 5 m .
The slowest trains will take 1 h 5 m and usually involve a change or two along the way, but you might be able to save a few pennies if you’re on a budget.


Omio recommends booking the train as it is the most popular option from Cardiff to Merthyr Tydfil among Omio's users. If you are prioritising price take the train with prices starting from £6. For those with little time consider booking a train which can get you there in 1h 4m. The ticket price range depends on the travel mode: a train costs an average of £6, and a coach costs an average of £6.
Distance: 33 km
Most popular Train | Coach |
|---|---|
£6 Average Price Cheapest | £6 Average Price |
1h 34m Average total duration Fastest 1h 4m Onboard + 30m Additional time* | 1h 47m Average total duration 1h 17m Onboard + 30m Additional time* |
Direct Options | Direct Options |
The table below shows live departures for Cardiff to Merthyr Tydfil trains for today, Monday 24 August. You can also manually refresh the results below to see updated train journeys.
| Provider | Departs | Duration | Arrives | Changes | Tickets |
|---|---|---|---|---|---|
G38724 | On time 7:00 Cardiff Central (CDF) | 1h05 | 8:05 Merthyr Tydfil station (MER) | 0 changesdirect | |
G38726 | On time 7:30 Cardiff Central (CDF) | 1h05 | 8:35 Merthyr Tydfil station (MER) | 0 changesdirect | |
G38728 | On time 8:00 Cardiff Central (CDF) | 1h05 | 9:05 Merthyr Tydfil station (MER) | 0 changesdirect | |
G38730 | On time 8:30 Cardiff Central (CDF) | 1h05 | 9:35 Merthyr Tydfil station (MER) | 0 changesdirect | |
This is the last train of the day. | |||||
Find all the dates and times for this journey
Compare coach and train prices over the next three weeks. See the best deals at a glance, find the lowest fares, and choose the option that fits your budget.
Trains from Cardiff to Merthyr Tydfil run on average 8 times per day, taking around 1h 4m. Cheap train tickets for this journey start at £6 if you book in advance.
There are 8 trains per day. The earliest train runs at 05:30, the last at 23:26. The fastest train covers the 33 km distance in 1h 3m.
Distance 33 km |
Average train duration 1h 4m |
Cheapest ticket price £6 |
Trains per day 8 |
Direct trains 8 |
Fastest train 1h 3m |
First train 5:30 |
Last train 23:26 |
Cheapest Month Apr |
Cheapest Day Fri |
High Season Jul - Sept |
Low Season Oct - Dec |
Busiest Day Sat |
Least Busy Day Tue |
Best time to book 2 days |
Discover the best of Merthyr Tydfil — top attractions, local food, transport tips, budget advice, and currency essentials. Plan your perfect Merthyr Tydfil trip today.
Museum in Cyfarthfa Park covering ironmaking, local art and social history inside a grand 19th-century mansion.
Small museum in composer Joseph Parry's birthplace, showing domestic life, music and the town's industrial past.
Visitor centre exhibits explain the former ironworks, furnace remains and the industrial landscape around Merthyr.
Large public park with woodland walks, a lake, play areas and the castle museum, ideal for a relaxed half-day visit.
Popular reservoir and country park with level lakeside paths, picnic spots and access to mountain scenery near the town.
Scenic reservoir area with waterside walking, birdlife and easy access to the surrounding Brecon Beacons landscape.
Traditional Welsh broth with lamb or beef, root vegetables and leeks. A classic valley comfort dish long linked to home cooking across South Wales.
Welsh rarebit is toasted bread topped with a hot savoury cheese and mustard sauce. A pub staple across Wales, often enjoyed as a light meal.
Bara brith is a spiced Welsh tea loaf packed with dried fruit. It is a traditional teatime bake served sliced, often with butter.
Friendly town-centre restaurant known for Turkish and Mediterranean grills, meze and generous portions in a relaxed modern setting.
Smart brasserie-style venue at BikePark Wales, known for hearty breakfasts, burgers and coffee with scenic hillside views.
Popular Indian restaurant serving classic curries, tandoori dishes and takeaway favourites in a casual, dependable setting.
Moderate for the UK. Hotels and meals are usually cheaper than in Cardiff or London, while local transport is limited but reasonably priced for visitors.
Tipping is optional. In restaurants, 10-12.5% is usual for good service if not already added. Round up taxi fares. Café tipping is not expected, but small change is appreciated.
Find answers to the most common questions about traveling from Cardiff to Merthyr Tydfil by train. From journey times and ticket prices to direct connections, first and last departures, and even whether the route is scenic, our FAQs cover everything you need to plan your trip. Whether you’re looking for the fastest train, the cheapest option, or tips for making the most of your visit at Merthyr Tydfil, this guide helps you travel smarter and with confidence.

Most Cardiff to Merthyr Tydfil trains use the Cardiff Central to Merthyr Tydfil station pair. Use this guide to compare Cardiff and Merthyr Tydfil train stations on this route, check city-centre transport, alongside checking practicalities like train station facilities and services.
Cardiff Central has practical services for this route, including Wifi, Shopping, Parking, Dining, ATM, Taxis, Accessibility, WC, Hotel, Lounge, Lost and Found Office, Ticket Office, Bike Parking, Bike Rental and Car Rental.
Food options include: Gourmet Coffee Bar & Kitchen, Pret a Manger, Tesco Express
Free Wi-Fi in the station. ATMs are located outside of the main entrance.
The ticket office is open Mon - Fri: 05:40 - 21:30, Sat: 05:40 - 21:30, Sun: 07:30 - 21:30.
Lost and found is available at the station.
Available at Cardiff Central: Parking, Taxis, WC.
Available at Cardiff Central: Bike Parking, Bike Rental, Car Rental.
Accessibility facilities are available at Cardiff Central: There is step-free access in the whole station. There are also ramps for train access and elevators in the station.
Nearby hotels include Clayton Hotel Cardiff, Cardiff Marriott Hotel, Travelodge Cardiff Central.
Cardiff Queen Street has practical services for this route, including Parking, Dining, Taxis, Accessibility, WC, Hotel, Lost and Found Office, Ticket Office, Bike Parking, Bike Rental and Information Desk.
Food and drink options are available at Cardiff Queen Street.
Ticket office support is available at Cardiff Queen Street. Information desks are information available from staff: Yes - from ticket office, Helpline Contact: 03333 211202, Passenger Information Systems: Departure screens, Announcements, Arrival screens.
Lost and found is available at the station.
Available at Cardiff Queen Street: Parking, Taxis, WC.
Available at Cardiff Queen Street: Bike Parking, Bike Rental.
Accessibility facilities are available at Cardiff Queen Street: Staff help available: Yes, Step free access coverage: Yes, Accessible ticket machines: There are accessible ticket machines at this station, Accessible ticket machines note: The ticket machines are near the main entrance and take cash and major debit and credit cards, Accessible toilets: Yes, Ramp for train access: Yes, Wheelchairs available: No, Impaired mobility set down / pick up points available: No.
Nearby hotels include Travelodge.
Cathays has practical services for this route, including Parking, Dining, Accessibility, Hotel, Lost and Found Office, Ticket Office, Bike Parking, Bike Rental and Information Desk.
Food and drink options are available at Cathays.
Ticket office support is available at Cathays. Information desks are information available from staff: Yes - from ticket office, Helpline Contact: 03333 211202, Passenger Information Systems: Departure screens, Arrival screens.
Lost and found is available at the station.
Available at Cathays: Parking.
Available at Cathays: Bike Parking, Bike Rental.
Accessibility facilities are available at Cathays: Staff help available: Yes, Step free access coverage: No, Step free access note: Category B3. While both platforms are step-free, there is no facility for wheelchair users, mobility scooter users or persons with reduced mobility to cross between Platform 1 and 2 due to a steep footbridge. Customers who have travelled from the Valleys and wish to access the University or the Civic Centre are advised to travel to Queen Street station, change onto a North-bound service and alight at Cathays on the return service, Accessible ticket machines: There are accessible ticket machines at this station, Accessible ticket machines note: The ticket machine(s) take cash, and major debit and credit cards. The machine on the Cardiff-bound platform is only available during staffing hours. The machine on the Pontypridd-bound platform is available all the time, Ramp for train access: Yes, Wheelchairs available: No, Impaired mobility set down / pick up points available: No.
Nearby hotels include Travelodge.
Merthyr Tydfil has practical services for this route, including Parking, Dining, Accessibility, Hotel, Lost and Found Office, Ticket Office, Bike Parking and Information Desk.
Food and drink options are available at Merthyr Tydfil.
Ticket office support is available at Merthyr Tydfil. Information desks are information available from staff: Yes - from ticket office, Helpline Contact: 03333 211202, Passenger Information Systems: Departure screens, Arrival screens.
Lost and found is available at the station.
Available at Merthyr Tydfil: Parking.
Available at Merthyr Tydfil: Bike Parking.
Accessibility facilities are available at Merthyr Tydfil: Staff help available: Yes, Step free access coverage: Yes, Step free access note: Category B. Step free access to the platform from the car park, Accessible car park equipment: Wheelchair users can use car park equipment at this station unaided, Accessible ticket machines: There are accessible ticket machines at this station, Accessible ticket machines note: The ticket machine(s) do not accept cash. Payment is by major debit and credit cards only, Ramp for train access: Yes, Wheelchairs available: No, Impaired mobility set down / pick up points available: No.
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