Carmarthen to London train with Great Western Railway

Wed, Nov 04
+ Add return
Great Western Railway
Transport for Wales
Regionale
Deutsche Bahn
iryo
2,000+ travel companies
Great Western Railway
Transport for Wales
Regionale
Deutsche Bahn
iryo
2,000+ travel companies
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The cheapest and fastest trains from Carmarthen to London

Showing times, prices and bookable tickets for Nov 04
Cheapest price on Nov 04
$54
Average ticket price on Nov 04
$115
Fastest journey on Nov 04
3 h 39 m
Average journey duration on Nov 04
3 h 43 m
Trains on Nov 04
21
Distance
291 km
Cheap tickets

The best way to find a cheap train ticket from Carmarthen to London is to book your journey as far in advance as possible and to avoid traveling at rush hour.

The average ticket from Carmarthen to London will cost around $115 if you buy it on the day, but the cheapest tickets can be found for only $54.

Fast trains

On Wed, Nov 04, we found 21 trains from Carmarthen to London, including 6 direct services.

On Wed, Nov 04 the direct trains cover the 291 km distance in an average of 3 h 43 m but if you time it right, some trains will get you there in just 3 h 39 m .

On Wed, Nov 04 the slowest trains will take 3 h 45 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.

  • Great Western RailwayW35437
    0 transfers
  • Great Western RailwayG15050
    0 transfers
  • Great Western RailwayW35434
    0 transfers
  • Great Western RailwayG15045
    0 transfers
  • Great Western RailwayW35435
    0 transfers

Journey information

Overview: Train from Carmarthen to London

United KingdomUnited Kingdom
United KingdomUnited Kingdom
Icon of train

Trains from Carmarthen to London run on average 19 times per day, taking around 4h 3m. Cheap train tickets for this journey start at $51 but you can travel from only $19 by bus.

There are 5 trains per day. The earliest train runs at 03:27, the last at 22:49. The fastest train covers the 180 miles (291 km) distance in 3h 24m.

Fares are the lowest economy prices found on Omio. Early booking often means lower prices. Prices change daily and are subject to availability. Discount cards, coach trips, and booking fees are not included.
Price information
Cheapest alternative travel mode
Bus from $19

Plan this route

Journey facts

  • Distance180 miles (291 km)
  • Average train duration4h 3m
  • Cheapest ticket price$51
  • Trains per day19
  • Direct trains5
  • Fastest train3h 24m
  • First train3:27 AM
  • Last train10:49 PM
  • Cheapest MonthFeb
  • Cheapest DayWed
  • High SeasonJan - Mar
  • Low SeasonApr - Jun
  • Busiest DayMon
  • Least Busy DaySun
  • Best time to book35 days

Understand & plan this route

Explore this journey

Book with confidence

Fares are the lowest economy prices found on Omio. Early booking often means lower prices. Prices change daily and are subject to availability. Discount cards, coach trips, and booking fees are not included.
Price information
Cheapest alternative travel mode
Bus from $19

Frequently asked questions about your Carmarthen to London trip

Use these quick route answers to check fares, travel time, departure options, and direct services before booking from Carmarthen to London.

Train ticket prices from Carmarthen to London can vary. The cheapest ticket starts at $51, while the average price is around $98.
The train from Carmarthen to London takes 3h 24m and runs 19 per day.
The first train from Carmarthen to London leaves at 3:27 AM.
The distance by train from Carmarthen to London is 180 miles (291 km).
The last train from Carmarthen to London leaves at 10:49 PM.
Yes, there is a direct train from Carmarthen to London. This service operates 5 times per day, provided by Great Western Railway.

Live departures

Carmarthen to London train times

The table below shows live departures for Carmarthen to London trains for tomorrow, Wednesday, November 4. You can also manually refresh the results below to see updated train journeys.

Last updated at
ProviderDepartsDurationArrivesTransfers
Tickets
Transport for WalesG38441+Great Western RailwayG15040 · G15001+South Western RailwayL793534:37 AM Carmarthen station (CMN)
5h43
10:20 AM London Waterloo (WAT)3 transfers
Transport for WalesG38441+Great Western RailwayG15040+Elizabeth lineC377454:37 AM Carmarthen station (CMN)
4h31
9:08 AM London Paddington (PAD)2 transfers
Great Western RailwayW35167 · G15003+Transport for WalesY63501+South Western RailwayL793645:32 AM Carmarthen station (CMN)
5h44
11:16 AM London Waterloo (WAT)3 transfers
Transport for WalesY63501+Great Western RailwayW351695:32 AM Carmarthen station (CMN)
4h12
9:44 AM London Paddington (PAD)1 transfer
Transport for WalesG38947+Great Western RailwayG150416:01 AM Carmarthen station (CMN)
4h13
10:14 AM London Paddington (PAD)1 transfer
Transport for WalesY62420+Great Western RailwayG150426:52 AM Carmarthen station (CMN)
3h44
10:36 AM London Paddington (PAD)1 transfer
Great Western RailwayW354327:23 AM Carmarthen station (CMN)
3h57
11:20 AM London Paddington (PAD)0 transfersDirect
Great Western RailwayW35178+Transport for WalesG391818:30 AM Carmarthen station (CMN)
3h41
12:11 PM London Paddington (PAD)1 transfer
Great Western RailwayG150459:21 AM Carmarthen station (CMN)
3h49
1:10 PM London Paddington (PAD)0 transfersDirect
Great Western RailwayG15046+Transport for WalesG3919510:24 AM Carmarthen station (CMN)
3h48
2:12 PM London Paddington (PAD)1 transfer
Great Western RailwayW3543411:27 AM Carmarthen station (CMN)
3h45
3:12 PM London Paddington (PAD)0 transfersDirect
Great Western RailwayW35188+Transport for WalesG3920612:30 PM Carmarthen station (CMN)
3h39
4:09 PM London Paddington (PAD)1 transfer
Transport for WalesY62516+Great Western RailwayG1504812:56 PM Carmarthen station (CMN)
3h45
4:41 PM London Paddington (PAD)1 transfer
Great Western RailwayW354352:20 PM Carmarthen station (CMN)
3h53
6:13 PM London Paddington (PAD)0 transfersDirect
Transport for WalesG39219+Great Western RailwayW351962:33 PM Carmarthen station (CMN)
4h08
6:41 PM London Paddington (PAD)1 transfer
Transport for WalesY62447+Great Western RailwayW351982:55 PM Carmarthen station (CMN)
4h21
7:16 PM London Paddington (PAD)1 transfer
Great Western RailwayG150504:19 PM Carmarthen station (CMN)
3h55
8:14 PM London Paddington (PAD)0 transfersDirect
Transport for WalesG39242+Great Western RailwayG15050+Elizabeth lineC376274:33 PM Carmarthen station (CMN)
4h21
8:54 PM London Paddington (PAD)2 transfers
Transport for WalesY62439+Great Western RailwayW352024:56 PM Carmarthen station (CMN)
4h14
9:10 PM London Paddington (PAD)1 transfer
Great Western RailwayW354376:20 PM Carmarthen station (CMN)
3h49
10:09 PM London Paddington (PAD)0 transfersDirect
Transport for WalesW44511+Great Western RailwayG150516:57 PM Carmarthen station (CMN)
4h14
11:11 PM London Paddington (PAD)1 transfer

This is the last train of the day.

Find all the dates and times for this journey

Why should you book Carmarthen to London trains with Omio?

Great Western Railway as well as Transport for Wales offer trains services from Carmarthen to London.
Omio is an official ticket reseller for all your travel options from Carmarthen to London.

Why book with Omio vs Great Western Railway?

  • Compare with other providers: On Omio, you can not only buy tickets for Great Western Railway, but also compare tickets for the likes of Transport for Wales to find the best option for your trip from Carmarthen to London.
  • Designed for International Travelers: Omio is in your language including 24/7 customer service and offers multiple payment options, including PayPal, credit cards, and bank transfer, in your preferred currency.
  • Compare all your options: Omio allows you to compare Great Western Railway with all available travel options, which are bus and train to ensure you get the best deal for traveling from Carmarthen to London.

Why book with Omio over Wanderu?

  • Compare with other providers: On Omio, you can also compare tickets for the likes of Transport for Wales to find the best option for your trip from Carmarthen to London.
  • Multiple modes of transport: Omio allows you to compare travel options including bus and train to find the ideal travel option from Carmarthen to London.

Train companies

Train companies from Carmarthen to London

Trains from Carmarthen to London with Great Western Railway and Transport for Wales. Night trains available on this route with Great Western Railway. High-speed trains available on this route with Great Western Railway. Regional trains available on this route with Great Western Railway and Transport for Wales. Use the details below to compare onboard facilities.

Great Western Railway

About
Great Western Railway is a train operating company in the United Kingdom. It operates services from London Paddington to the West of England, South Wales and the Cotswolds. It also operates services from London Paddington to Oxford, Reading and Bristol. It offers a range of ticket types, including Advance, Anytime, Off-Peak and Super Off-Peak tickets. Onboard facilities include free Wi-Fi, power sockets, air conditioning and catering services. The most popular routes for Great Western Railway are London Paddington to Bristol, Reading and Oxford.
Luggage & cancellation policy
Average Great Western Railway Duration
3h 24m
Cheapest Great Western Railway Price
$51
Great Western Railway frequency
17 a day
Luggage included
Two pieces of luggage and one piece of hand luggage included in ticket price
Luggage storage
Overhead racks, dedicated luggage areas at end of carriages, under seats
Cancellation Policy
Refund policies apply as per ticket type
Refund
Full refund if train is cancelled
Amenities on board the train
Wifi
Food sold onboard
Cafe bar serving hot and cold drinks, snacks, sandwiches. First Class at-seat service on some routes
Seat reservation
Optional seat reservations available for a fee. Free in First Class
Toilets
USB plugs
Accessibility
Wheelchair spaces, accessible toilets, ramps for boarding, priority seating, assistance service available
Pets
Small pets travel free. Dogs must be on lead. Maximum two dogs per passenger
Quiet zone

Transport for Wales

About
Transport for Wales is a public transport provider in Wales, UK. It operates a comprehensive network of trains, buses and ferries across the country. The trains are modern and comfortable, with a range of different types including InterCity Express Trains, Regional Trains, and Metro Trains. Onboard facilities include free Wi-Fi, power sockets, and a range of food and drink options. There are a variety of ticket types available, including single and return tickets, season tickets, and group tickets. The most popular routes include Cardiff to Swansea, Cardiff to Newport, and Cardiff to Manchester.
Luggage & cancellation policy
Average Transport for Wales Duration
3h 42m
Cheapest Transport for Wales Price
$61
Transport for Wales frequency
6 a day
Luggage included
2 large items of luggage and 1 small hand luggage included
Luggage storage
Overhead racks, luggage areas at end of carriages, under seats
Cancellation Policy
Refund policy depends on ticket type
Refund
Full refund if service canceled
Amenities on board the train
Wifi
Food sold onboard
Trolley service on most routes with snacks and drinks. Some stations have cafes
Seat reservation
Seat reservations recommended but not mandatory. Free of charge when booking tickets
Toilets
USB plugs
Accessibility
Wheelchair spaces, accessible toilets, ramps for boarding, priority seating, assistance service available
Pets
Small pets in carriers travel free. Dogs allowed with ticket (£5 per day). Guide dogs free
Quiet zone

Companies, tickets, and onboard amenities between Carmarthen and London

Review the details behind your booking, from operators and ticket rules to luggage, onboard amenities, accessibility, and route-specific travel policies.

Yes, there is a high-speed train from Carmarthen to London.
Yes, there is a night train from Carmarthen to London.
Items not allowed on trains typically include hazardous materials such as explosives, flammable liquids, corrosive substances, and illegal drugs. Additionally, large or bulky items that may obstruct aisles or emergency exits, as well as pets without proper carriers, may be restricted. Specific prohibited items can vary by train operator and region, so please check the rules for your particular journey.
Yes, rail passes such as the BritRail Pass are valid on most trains within the United Kingdom, offering unlimited travel on participating train operators for a set period.

Complete guide to London

Things to do in London

Discover the best of London — top attractions, local food, transport tips, budget advice, and currency essentials. Plan your perfect London trip today.

  • Must visit

The British Museum

Vast world museum with the Rosetta Stone, Parthenon sculptures and global antiquities. Essential for history lovers.

  • Must visit

The National Gallery

Leading art museum on Trafalgar Square with masterpieces from Van Gogh, Turner and da Vinci. Free and internationally renowned.

  • Must visit

Victoria and Albert Museum

Grand museum of art, design and performance with fashion, sculpture and decorative arts collections in South Kensington.

British Pound Sterling (£)

Very costly by European standards. Hotels, dining, and transit are pricier than in most UK and EU city breaks, especially in central areas.

Average meal costs

Budget
£8-15 for fast food or casual takeaway.
Mid-range
£20-40 per person for a meal.
Fine dining
£70+ per person for upscale restaurants.
Coffee
£3-5 for a cappuccino.

Tipping culture

Restaurants often add 12.5% service; if not, tip 10-12%. Taxis: round up or 10%. Cafes: optional small change or none.

Plan your visit to London

Get destination-focused answers for the end of your trip, including what to do, when to go, practical entry details, and tips for making the most of your time in London.

The train journey from Carmarthen to London offers scenic views, particularly as it passes through the rolling hills and countryside of South Wales and along sections of the Severn Estuary before reaching the more urban landscapes approaching London.
Popular day trips by train from London include Oxford, Cambridge, Brighton, Stevenage, Canterbury.
The currency used in the United Kingdom is the British Pound Sterling (GBP). For travelers, using a card is generally more convenient and widely accepted, especially in cities and for transportation tickets, though carrying some cash can be useful for small purchases or in rural areas.
In London, travelers should be cautious of pickpocketing, especially in crowded areas like public transport, markets, and popular tourist sites. Common scams include fake charity collectors, overcharging by unlicensed taxi drivers, and distraction techniques used by thieves. Always use official black cabs or licensed minicabs booked through reputable apps, and keep personal belongings secure to reduce risks. Staying vigilant in busy locations and avoiding unsolicited offers helps ensure a safer visit.
Pack lightweight, versatile clothing suitable for the destination's climate, and use secure, lockable luggage to protect belongings. Keep essential items like travel documents, medication, and valuables in a carry-on bag for easy access. Use packing organizers or cubes to maximize space and maintain order. Lastly, include a small first aid kit and personal hygiene items for added comfort during travel.

FAQs: Trains from Carmarthen to London

Find answers to the most common questions about traveling from Carmarthen to London 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 London, this guide helps you travel smarter and with confidence.

FAQs
Yes, you can take the train from Carmarthen to London.

popular train stations

Popular train stations from Carmarthen to London

Most Carmarthen to London trains use the Carmarthen to London Paddington station pair, with some services arriving at London Waterloo. Use this guide to compare Carmarthen and London train stations on this route, check city-centre transport, alongside checking practicalities like train station facilities and services.

Departure train stations in Carmarthen
Arrival train stations in London

Which Carmarthen station do trains to London leave from?

Trains from Carmarthen to London leave from Carmarthen. The station is from Carmarthen city centre at Carmarthen station, Station Road, Carmarthen, Carmarthenshire, SA31 2BE.
CarmarthenCarmarthen station, Station Road, Carmarthen, Carmarthenshire, SA31 2BE+44 3450507080ShoppingParkingDiningAccessibilityWCHotelLoungeLost and Found OfficeTicket OfficeBike ParkingBike Rental
City-centre transport

Getting to Carmarthen from Carmarthen city centre

BusT1x, T1, T1a · 3m · $2 · every ~4 min

Carmarthen train station facilities and services

Carmarthen has practical services for this route, including Shopping, Parking, Dining, Accessibility, WC, Hotel, Lounge, Lost and Found Office, Ticket Office, Bike Parking, and Bike Rental.

Food and drink

Food and drink options are available at Carmarthen.

Tickets and information

Ticket office support is available at Carmarthen.

Luggage and lost property

Lost and found is available at the station.

Parking, taxis and toilets

Available at Carmarthen: Parking, WC.

Bike and car services

Available at Carmarthen: Bike Parking, Bike Rental.

Accessibility

Accessibility facilities are available at Carmarthen: Staff help available: Yes, Step free access coverage: Yes, Step free access note: Category B1. Step free access is available to Platform 1. Platform 2 can be accessed via the ramp at the end of Platform 1 and across a foot crossing, 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 toilets: Yes, Ramp for train access: Yes, Wheelchairs available: Yes, Impaired mobility set down / pick up points available: No.

Train stations for Carmarthen to London

Check train stations information for Carmarthen and London, including where trains depart and arrive on this route.

The train station in Carmarthen that goes to London is Carmarthen, which connects to London Paddington.

Most popular train connections from Carmarthen

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