- Must visit
Cyfarthfa Castle Museum and Art Gallery
Main local museum in Cyfarthfa Castle, covering Merthyr's ironmaking, art, social history, and parkland setting in one landmark site.
Cheapest price
€63
Average price
€66
Fastest journey
3 h 17 m
Average duration
3 h 17 m
Trains per day
2
Distance
226 km
The best way to find a cheap train ticket from London to Merthyr Tydfil is to book your journey as far in advance as possible and to avoid traveling at rush hour.
The average ticket from London to Merthyr Tydfil will cost around €66 if you buy it on the day, but the cheapest tickets can be found for only €63.
Of the 2 trains that leave London for Merthyr Tydfil on Mon, Aug 17, 2 travel direct so it’s quite easy to avoid journeys where you’ll have to change along the way.
On Mon, Aug 17 the direct trains cover the 226 km distance in an average of 3 h 17 m but if you time it right, some trains will get you there in just 3 h 17 m .
On Mon, Aug 17 the slowest trains will take 3 h 17 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 London to Merthyr Tydfil among Omio's users. If you are prioritising price take the bus with prices starting from €13. For those with little time consider booking a train which can get you there in 3h 24m. The ticket price range depends on the travel mode: a bus costs an average of €13, and a train costs an average of €45.
Distance: 140 miles (226 km)
Most popular Train | Bus | Driving |
|---|---|---|
€66 Average price | €17 Average price Cheapest | €63 Average price (fuel + tolls) |
3h 54m Average total duration Fastest 3h 24m Onboard + 30m Additional time* | 6h 18m Average total duration 5h 48m Onboard + 30m Additional time* | 3h 21m Average total duration (door-to-door) |
Direct Options | Direct Options | Direct Options |
This is compared to other travel options from London to Merthyr Tydfil:
A bus is €49 less than a train for this route with tickets for a train from London to Merthyr Tydfil costing on average €66.
Other travel options to Merthyr Tydfil take longer:
Bus takes on average 5h 48m.
Tickets start at around €66 compared to roughly €63 in fuel and tolls — a saving of about €-2.74. The journey takes 3h 24m versus 3h 21m by car, so you'll arrive a bit later, but you can work, read, or sleep along the way rather than spending the time behind the wheel. You'll also save the hassle of parking at the other end.
Driving is worth it if you're on a tight schedule, travelling as a group, or want to stop somewhere en route.
The table below shows live departures for London to Merthyr Tydfil trains for today, Sunday, August 16. You can also manually refresh the results below to see updated train journeys.
| Provider | Departs | Duration | Arrives | Transfers | Tickets |
|---|---|---|---|---|---|
C00840+ G39875 | On time 1:45 PM London Paddington (PAD) | 3h44 | 5:29 PM Merthyr Tydfil station (MER) | 1 transfer | |
This is the last train of the day. | |||||
Find all the dates and times for this journey
Compare train and bus 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 London to Merthyr Tydfil run on average 7 times per day, taking around 3h 24m. Cheap train tickets for this journey start at €45 but you can travel from only €13 by bus.
The earliest train runs at 05:14, the last at 20:48. The fastest train covers the 140 miles (226 km) distance in 3h 16m.
Distance 140 miles (226 km) |
Average train duration 3h 24m |
Cheapest ticket price €45 |
Trains per day 7 |
Fastest train 3h 16m |
First train 5:14 AM |
Last train 8:48 PM |
Cheapest Month Sep |
Cheapest Day Fri |
High Season Jan - Mar |
Low Season Oct - Dec |
Busiest Day Sat |
Least Busy Day Fri |
Best time to book 21 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.
Main local museum in Cyfarthfa Castle, covering Merthyr's ironmaking, art, social history, and parkland setting in one landmark site.
Industrial heritage museum preserving a historic ironworks site central to the story of Merthyr as a powerhouse of the Industrial Revolution.
Hands-on transport museum with classic vehicles and railway interest, popular with families and enthusiasts near the town centre.
Large historic park around Cyfarthfa Castle with gardens, woodland, play areas, and riverside paths popular with families and walkers.
Scenic reservoir and mountain setting north of town, ideal for walks, photography, and panoramic views of the Brecon Beacons landscape.
Town-centre shopping and civic area that offers the everyday pulse of Merthyr, historic streetscape, and easy access to key landmarks.
A hearty Welsh broth with lamb or beef, root vegetables and leeks. It is a classic comfort dish long associated with Welsh homes and mining communities.
Welsh cakes are small griddled cakes with flour, butter, sugar and dried fruit. They are a beloved everyday Welsh treat often served warm with tea.
A traditional fruit loaf baked with tea, dried fruit and spices. Common across South Wales, it is usually sliced and served with butter.
Smart casual restaurant at the golf club with Welsh and British dishes, Sunday lunch and views over the course.
Well-known local Indian restaurant serving curries, tandoori dishes and popular takeaway favourites in a casual setting.
Established town pub and restaurant known for classic British meals, carvery options and a relaxed traditional atmosphere.
Moderate for the UK. Hotels and meals are often cheaper than Cardiff, while local buses and attractions are generally low cost for visitors.
Tipping is optional. In restaurants, 10-12.5% is polite for good service if not already added. Round up taxi fares. Cafes usually do not expect tips, but small change is appreciated.
Official public transport app
Merthyr Tydfil Railway Station -> Merthyr Tydfil Bus Station
Find answers to the most common questions about traveling from London 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 London to Merthyr Tydfil trains use the London Paddington to Merthyr Tydfil station pair. Use this guide to compare London and Merthyr Tydfil train stations on this route, check city-centre transport, alongside checking practicalities like train station facilities and services.
London Paddington has practical services for this route, including Wifi, Lockers, Shopping, Parking, Dining, ATM, Taxis, Accessibility, WC, Hotel, Lounge, Lost and Found Office, Ticket Office, Bike Parking, Bike Rental, Car Rental, and Information Desk.
Food options include: Wasabi, The Beer House, Barburrito, Upper Crust, The Mad Bishop & Bear (Fullers), The Pasty Shop, Burger King, Pret a Manger, The Savanna, Soboro Bakery, & more
Free Wi-Fi in the station. ATMs are located next to the ticket office.
The ticket office is open 24/7. Information desks are located near Platform 1.
Luggage storage is luggage lockers are located near the taxi stand beside Platform 11. . Lost and found is available at the station.
Available at London Paddington: Parking, Taxis, WC.
Available at London Paddington: Bike Parking, Bike Rental, Car Rental.
Accessibility facilities are available at London Paddington: Wheelchair access, escalators, elevators.
Nearby hotels include Hilton London Paddington, Mercure London Paddington Hotel, The Pilgrm.
Forest Hill is 9 km from London city centre. Check local transport options before travel.
Forest Hill has practical services for this route, including Dining, ATM, Accessibility, WC, and Bike Parking.
Food and drink options are available at Forest Hill.
ATMs are available at Forest Hill.
Available at Forest Hill: WC.
Available at Forest Hill: Bike Parking.
Accessibility facilities are available at Forest Hill.
London Victoria is 1 km from London city centre. Public transport options include:
London Victoria has practical services for this route, including Wifi, Shopping, Parking, Dining, ATM, Accessibility, WC, Hotel, Lost and Found Office, Ticket Office, Bike Parking, Bike Rental, and Information Desk.
Food and drink options are available at London Victoria.
Wi-Fi is available at London Victoria. ATMs are available at London Victoria.
Ticket office support is available at London Victoria. Information desks are information available from staff: Yes - from help point, Passenger Information Systems: Departure screens, Announcements, Arrival screens.
Lost and found is available at the station.
Available at London Victoria: Parking, WC.
Available at London Victoria: Bike Parking, Bike Rental.
Accessibility facilities are available at London Victoria: Staff help available: Yes, Step free access coverage: Yes, Step free access note: There is step free access at London Victoria Rail Station to the Victoria Line on the Underground. This can be accessed via the Cardinal Place entrance to the underground, Accessible car park equipment: Wheelchair users may require assistance using car park equipment at this station, Accessible public telephones: Main concourse, Accessible taxis: Available on request Taxi rank outside main station entrance, Accessible ticket machines: There are no accessible ticket machines at this station, Accessible toilets: Yes, Ramp for train access: Yes, Wheelchairs available: Yes, Wheelchairs available open hours: Monday - Sunday 24 Hours a Day, Impaired mobility set down / pick up points available: Yes.
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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