Compensation and refunds
Trainpal is here to help with all your travel needs, including changing plans, getting ticket refunds, and requesting Delay Repay.

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.
€42.77
From 15 Sep to 21 Sep
€23.70
On Sun 21 Sep
From Carmarthen to London, take the fastest train in 3h 35m, typically 3h 51m. Daily, 21 trains depart from Carmarthen, with the first at 04:38 and the last at 22:42. During Off-Peak times starting at 09:30 on weekdays, enjoy a quieter space with fewer people. Check real-time updates for train times, delays, and cancellations. We save you time, effort, and money.
Tue
16 Sep
Wed
17 Sep
Thu
18 Sep
Fri
19 Sep
Sat
20 Sep
Sun
21 Sep
Mon
22 Sep
Departs | Arrives | Status | Duration | Operator | ||
---|---|---|---|---|---|---|
18:18 Carmarthen | 22:09 London Paddington | On time | 3h 51m | Great Western Railway | Find tickets | |
18:57 Carmarthen | 23:24 London Paddington | On time | 4h 27m | Transport for Wales | Find tickets | |
20:20 Carmarthen | 06:29 London Paddington | On time | 10h 9m | Great Western Railway | Find tickets | |
20:32 Carmarthen | 06:29 London Paddington | On time | 9h 57m | Transport for Wales | Find tickets | |
22:42 Carmarthen | 07:16 London Paddington | On time | 8h 34m | Transport for Wales | Find tickets |
Plan your journey from Carmarthen to London with ease. Explore the first and last train times, departure and arrival stations, distance, journey time, and price options to make the most of your trip.
Travelling by train from Carmarthen to London is efficient and offers a scenic and comfortable experience. With frequent departures from Carmarthen, you can reach London in just 3h 35m, making it one of the fastest and most convenient ways to travel between these two places.
The fastest train journey time from Carmarthen to London is 3h 35m . Use our Train Journey Planner to find direct trains, avoid transfers, and compare travel times for each route to see if there are fewer stops to make your journey seamless.
No, unfortunately, you need to transfer from Carmarthen to London. 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 Carmarthen to London 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 Carmarthen to London 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.
Typically, you should plan to arrive at the station 15-20 minutes before your train is scheduled to depart. However, the size of the station and your familiarity with it can affect this timing. For larger or less familiar stations, leaving home earlier can help reduce stress and ensure a more relaxed journey.
Yes, most trains on the Carmarthen to London route offer amenities like Wi-Fi, food services, and various seating options. Additional facilities may include power sockets, accessibility features, and luggage storage. Check the specific amenities offered by the train operator when booking, as these can vary.
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.
Use TrainPal for quick access to live updates and notifications. If your phone allows messages from us, you'll receive instant notifications about train cancellations directly on your screen.
€28.51
€42.77
Trainpal is here to help with all your travel needs, including changing plans, getting ticket refunds, and requesting Delay Repay.
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.