Trains tickets from Carmarthen to London

Easily compare and book your next trip with Busbud

Join 75M+ travellers booking 2M+ routes across 85+ countries.
Enjoy our 24/7 customer service to assist you at every stage.
Cancel anytime and receive a 100% refund, no reason needed.

Train Carmarthen to London: Trip Overview

Please note, this information is subject to change.

Average ticket priceUS$95
Average train trip duration3h 49m
Number of daily trains4
Earliest train departure07:23
Distance178 miles
Latest train departure19:20

Carmarthen to London Trains

With Busbud, comparing and booking tickets for a train from Carmarthen to London is a breeze. Browse through an extensive selection of train fares and train schedules to find the best deals.

We make it our job to connect you with the most dependable companies that offer train services from Carmarthen to London.

From train tickets to high-end trains trip from Carmarthen to London, we offer a wide range of train services to best suit your needs depending on how much your budget is.

Frequently asked questions on the trip Carmarthen - London

  1. How much does a cheap train ticket from Carmarthen to London cost?

    The average train ticket price from Carmarthen to London is US$95. The best way to find cheap train tickets from Carmarthen to London is to book your tickets as early as possible. Prices tend to rise as your travel date approaches, so book in advance to secure the best prices!

  2. How long is the train trip from Carmarthen to London?

    A train trip between Carmarthen and London is around 3h 49m, although the fastest train will take about 3h 42m. This is the time it takes to travel the 181 miles that separates the two cities.

  3. How many daily train are there between Carmarthen and London?

    The number of trains from Carmarthen to London can differ depending on the day of the week. On average, there are 4. Some trains are direct while others include transferring trains. Simplify your train trip from Carmarthen to London by comparing and selecting the train that fits your travel style and budget on Busbud.

Find cheapest prices for trains

Price is for a one-way ticket for one passenger and based on past searches.

Best price found
04/04
No data
05/04
No data
Today
No data
07/04
No data
08/04
No data
09/04
No data
10/04
US$75
11/04
No data
busbud logoThe cheapest trip from Carmarthen to London was searched and found on 10 Apr 2025 with a price of US$75

To save money and be sure you have the best seat, it's a good idea to buy your train tickets from Carmarthen to London as early as possible.

You can expect to pay from US$75 to US$157 for a train ticket from Carmarthen to London based on the last 2 days. You can expect to find the cheapest price for the trip at US$75, which is on 2025-04-10.

About Train Travel

Train Travel Tips

Taking the fastest trains allows you to travel at speeds greater than 300 km/h. Taking a trip from Carmarthen to London is not only much quicker but more comfortable too! You can usually travel directly to the city centre and save time while you're at it.

Whether you take a regional or high-speed train to London, you’ll help reduce the environmental impact and carbon footprint of your trip. As you watch the landscapes unfold before your eyes, you can tell yourself that with this choice, you are making sure they remain protected.

The train emits up to 30x less CO2 for a trip between Carmarthen and London compared to the same trip made by plane or car. A truly ecological mode of transport that will allow you to easily reduce your carbon footprint.

Tune out to the fine sounds of your best music playlist on your train trip from Carmarthen to London while indulging in miles on end of beautiful scenic views.

Did you know?

You can find the straightest railway in the world in Australia. This railway line is 478 kilometres long and is also considered the longest and straightest railway line in the world.

One of the deepest train stations in the world is in Kiev. Located at a depth of 105m, it was designed in this way to serve as a shelter in the event of an attack. The second deepest station is in China. Badaling station is located 60m under the Great Wall of China!

Railway companies played a major role as early as 1883 in the use of time zones as we know them today.

Will you be returning to Carmarthen by train?

Train from London to Carmarthen

Why choose Busbud?

The Best Way To Book Bus and Train Tickets

Busbud.com makes it easy for you to find, compare and book city-to-city bus tickets, all over the world. We save you the extra trip to the bus station. With several language and currency options available, Busbud seeks to cater to international bus travellers no matter where they are in the world. With Busbud, you can buy tickets with confidence. We ensure that you make the most out of your bus trip by partnering up with reliable bus companies from all around the world such as Greyhound, Eurolines, ALSA, OUIBUS (BlaBlaBus), National Express and many others.

Popular Trains Connecting Carmarthen

Trains Leaving from Carmarthen

Popular Trains Connecting London

Trains Going to London