Compensation and refunds
Trainpal helps you handle travel changes, refunds, and Delay Repay requests effortlessly.


If you find trains for a cheaper price elsewhere, let us know and we'll refund the difference*

Save more with a variety of promo codes. Book on the TrainPal app with no booking fees.

24/7 fast customer service with prompt responses to your queries

Seamless rail travel with easy changes and refunds for peace of mind.
Journey from Merthyr Tydfil to London Waterloo on the fastest train in 3h 38m, usually 4h 40m. Every day, 34 trains leave from Merthyr Tydfil, starting at 06:09 and ending at 22:37. During Off-Peak Times from 09:30 on weekdays, enjoy a quieter and less crowded journey. Get real-time updates on train schedules, delays, and cancellations. Save time, effort, and money with us.
| Departs | Arrives | Operator | ||
|---|---|---|---|---|
| 07:09Merthyr Tydfil | 4h 3m, 1 change | 11:12London Waterloo | Transport for Wales | Find tickets | 
| 07:09Merthyr Tydfil | 5h 7m, 2 change | 12:16London Waterloo | Transport for Wales | Find tickets | 
| 08:09Merthyr Tydfil | 3h 47m, 1 change | 11:56London Waterloo | Transport for Wales | Find tickets | 
| 08:39Merthyr Tydfil | 3h 43m, 1 change | 12:22London Waterloo | Transport for Wales | Find tickets | 
| 09:09Merthyr Tydfil | 5h 8m, 2 change | 14:17London Waterloo | Transport for Wales | Find tickets | 
Taking the train from Merthyr Tydfil to London Waterloo is both efficient and enjoyable, offering scenic views and comfort. With frequent departures from Merthyr Tydfil, you can arrive at London Waterloo in just 3h 38m, making it a quick and convenient option for travelling between these two places.

The fastest train journey time from Merthyr Tydfil to London Waterloo is 3h 38m . Direct trains can save significant time by avoiding transfers. Always check if a direct route is available for your journey. Moreover, when searching for trains, consider the total travel time. Some routes with fewer stops or more efficient schedules might be faster.
No, unfortunately, you need to transfer from Merthyr Tydfil to London Waterloo. Still, the TrainPal Train Journey Planner helps you find the best train. Just input your origin or destination places, then click "Search" to see the suitable route.

While Merthyr Tydfil to London Waterloo trains are usually on time, delays or disruptions may occur due to weather, strikes, and other factors. Finding a train timetable for your trip from Merthyr Tydfil to London Waterloo is easy with Train Journey Planner. Simply enter your departure and arrival stations to get a detailed schedule of available trains. Input your travel details to discover the best routes, connections, and train times.
Usually, you need to arrive at a station at least 15-20 minutes ahead of time. However, consider the station's size and your familiarity with it. If the station is large and you are not familiar with it, leaving home as early as possible is the best choice. This can reduce your stress and ensure a relaxing journey.
Yes, most trains on the route from Merthyr Tydfil to London Waterloo are equipped with Wi-Fi. Passengers can also enjoy complimentary food, drinks, and power sockets for a more comfortable journey. Please note that the availability of these services can vary depending on the train company
Check our Train Journey Planner, which provides detailed information about transfers to ensure your journey is uninterrupted, saving you time and effort, and allowing you to get a full rest for travelling.

Checking train delays and cancellations in the UK is simple. Utilise the TrainPal mobile app for real-time information. We offer live updates, including live train status and notifications of any train strikes.
 Family & Friends Railcard
 Family & Friends Railcard£29.97
£44.95
Trainpal helps you handle travel changes, refunds, and Delay Repay requests effortlessly.


Cheaper train tickets for less busy times. Combine with Advance fares for the best deals.
* Prices are dynamic and subject to change. Ticket prices vary based on time of day, route, and class. This pricing does not apply to discounted Split tickets and Railcards.
* Save an average of 73% by combining Advance Ticket savings of 73% with an additional 30% through split tickets. These savings apply to Advance fares booked at least one week before travel, excluding Anytime fares purchased on the day of travel. Availability may vary by route and may not be combined with other offers.