It takes an average of 4h 2m to travel from Carmarthen to London by train, over a distance of around 181 miles (291 km). There are normally 12 trains per day traveling from Carmarthen to London and tickets for this journey start from $39.09 when you book in advance.
From 3h 40m
181 miles (291 km)
12 trains per day
Direct trains available
Looking to travel from Carmarthen to London by train? You've come to the right place!
On average, it takes around 4 hours 2 minutes to travel from Carmarthen to London by train, the fastest services can get you there in as little as 3 hours 40 minutes though. You'll usually find 12 trains per day running along the 291 km route between these two destinations. Once you're onboard, you can sit back and relax, as you won't need to make any changes on your way to London.
Plan your trip ahead of time and book early if you want to snap up the cheapest fares. Tickets from Carmarthen to London start from $39.09 when you book in advance, so start a search in our Journey Planner to view the latest prices.
If you're feeling ready to book, start looking for cheap train tickets with us today. Keep reading for more information on the journey to London by train, including our train schedule where you can view first and last train times.
The average journey time by train between Carmarthen and London is 4 hours and 2 minutes, with around 12 trains per day. The journey time may be longer on weekends and holidays, so use our Journey Planner on this page to search for a specific travel date.
The fastest journey time by train from Carmarthen to London is 3 hours and 40 minutes.
Train tickets from Carmarthen to London can start from as little as $39.09 when you book in advance and are usually more expensive when purchased on the day. Prices can also vary depending the time of day, route and class you book.
Yes, it is possible to travel from Carmarthen to London without having to change trains. There are 12 direct trains from Carmarthen to London each day. Though there may be fewer direct services available depending on your exact departure date.
The first train from Carmarthen to London leaves at 06:23. Times and services may vary during weekends and holidays.
The last train from Carmarthen to London leaves at 19:20. Trains that depart in the early morning hours or very late evening may be sleeper services, time and services may also vary during weekends and holidays.
Trains travelling from Carmarthen to London cover a distance of around 181 miles (291 km) during the journey.
If you’re looking for the return train journey, check out trains from London to Carmarthen.
If you catch this train more than 3 times per week, you could save money with a Season Ticket. With annual, monthly and weekly options available, find out if a season ticket for Carmarthen to London is right for you.
National Railcards offer a 1/3 off eligible train tickets in the UK and can be a great investment if you travel a few times or more in a year. Find out how you can save with a National Railcard here.
Download our app to find split tickets — courtesy of SplitSave, our handy feature which 'splits' your train tickets where possible to find you a better deal. Learn more about the clever tech behind split tickets, and how to spot SplitSave discounts in our app.
For more money-saving tips on UK and European train travel, read our cheap train tickets guide.