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The cheapest and fastest trains from Carmarthen to London
Showing times, prices and bookable tickets for 21 Oct
Cheapest price on 21 Oct
£67
Average ticket price on 21 Oct
£86
Fastest journey on 21 Oct
3 h 39 m
Average journey duration on 21 Oct
3 h 40 m
Trains on 21 Oct
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 travelling at rush hour.
The average ticket from Carmarthen to London will cost around £86 if you buy it on the day, but you can find cheap train tickets today for only £67.
Fast trains
On Wed 21 Oct, we found 21 trains from Carmarthen to London, including 6 direct services.
These direct trains cover the 291 km distance in an average of 3 h 40 m but if you time it right, some trains will get you there in just 3 h 39 m .
The slowest trains will take 3 h 41 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.
W3543718:203h49Carmarthen station (CMN)22:09London Paddington (PAD)£671One-way0 changes- G1505016:193h55Carmarthen station (CMN)20:14London Paddington (PAD)£671One-way0 changes
- W3543411:273h45Carmarthen station (CMN)15:12London Paddington (PAD)£721One-way0 changes
- G150459:213h49Carmarthen station (CMN)13:10London Paddington (PAD)£721One-way0 changes
- W3543514:203h53Carmarthen station (CMN)18:13London Paddington (PAD)£721One-way0 changes
- W35188+
G3920612:303h39Carmarthen station (CMN)16:09London Paddington (PAD)£731One-way1 change - G38441+G150404:373h39Carmarthen station (CMN)8:16London Paddington (PAD)£1671One-way1 change
- W35167+Y635015:323h40Carmarthen station (CMN)9:12London Paddington (PAD)£1671One-way1 change
- W35435+G3921914:333h40Carmarthen station (CMN)18:13London Paddington (PAD)£731One-way1 change
- W35178+G391818:303h41Carmarthen station (CMN)12:11London Paddington (PAD)£731One-way1 change
Journey information
Overview: Train from Carmarthen to London
United KingdomUnited Kingdom
Trains from Carmarthen to London run on average 19 times per day, taking around 4h 3m. Cheap train tickets for this journey start at £38 but you can travel from only £14 by coach.
There are 5 trains per day. The earliest train runs at 03:27, the last at 22:49. The fastest train covers the 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
Coach from £14
Distance 291 km |
Average train duration 4h 3m |
Cheapest ticket price £38 |
Trains per day 19 |
Direct trains 5 |
Fastest train 3h 24m |
First train 3:27 |
Last train 22:49 |
Cheapest Month Feb |
Cheapest Day Wed |
High Season Jan - Mar |
Low Season Apr - Jun |
Busiest Day Mon |
Least Busy Day Sun |
Best time to book 35 days |
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
Coach from £14
Live departures
Carmarthen to London train times
The table below shows live departures for Carmarthen to London trains for today, Tuesday 20 October. You can also manually refresh the results below to see updated train journeys.
Last updated at
| Provider | Departs | Duration | Arrives | Changes | Tickets |
|---|---|---|---|---|---|
| G15040+G38441 | Delayed 4:29 4:37Carmarthen station (CMN) | 3h39 | 8:16 London Paddington (PAD) | 1 change | |
G15040 · G15001+ L79353+G38441 | Delayed 4:29 4:37Carmarthen station (CMN) | 5h43 | 10:20 London Waterloo (WAT) | 3 changes | |
| W35167+Y63501 | On time 5:32 Carmarthen station (CMN) | 3h40 | 9:12 London Paddington (PAD) | 1 change | |
| W35167 · G15003+L79364+Y63501 | On time 5:32 Carmarthen station (CMN) | 5h44 | 11:16 London Waterloo (WAT) | 3 changes | |
| G38947+G15041 | On time 6:01 Carmarthen station (CMN) | 4h13 | 10:14 London Paddington (PAD) | 1 change | |
| G15042+Y62420 | On time 6:52 Carmarthen station (CMN) | 3h44 | 10:36 London Paddington (PAD) | 1 change | |
| W35432 | 7:23 Carmarthen station (CMN) | 3h57 | 11:20 London Paddington (PAD) | 0 changesdirect | |
| W35178+G39181 | 8:30 Carmarthen station (CMN) | 3h41 | 12:11 London Paddington (PAD) | 1 change | |
| G15045 | 9:21 Carmarthen station (CMN) | 3h49 | 13:10 London Paddington (PAD) | 0 changesdirect | |
| G15046+G39195 | 10:24 Carmarthen station (CMN) | 3h48 | 14:12 London Paddington (PAD) | 1 change | |
| W35434 | 11:27 Carmarthen station (CMN) | 3h45 | 15:12 London Paddington (PAD) | 0 changesdirect | |
| W35188+G39206 | 12:30 Carmarthen station (CMN) | 3h39 | 16:09 London Paddington (PAD) | 1 change | |
| G15048+Y62516 | 12:56 Carmarthen station (CMN) | 3h45 | 16:41 London Paddington (PAD) | 1 change | |
| W35435 | 14:20 Carmarthen station (CMN) | 3h53 | 18:13 London Paddington (PAD) | 0 changesdirect | |
| W35435+G39219 | 14:33 Carmarthen station (CMN) | 3h40 | 18:13 London Paddington (PAD) | 1 change | |
| W35198+Y62447 | 14:55 Carmarthen station (CMN) | 4h21 | 19:16 London Paddington (PAD) | 1 change | |
| G15050 | 16:19 Carmarthen station (CMN) | 3h55 | 20:14 London Paddington (PAD) | 0 changesdirect | |
| G15050+G39242 | 16:33 Carmarthen station (CMN) | 3h41 | 20:14 London Paddington (PAD) | 1 change | |
| W35202+Y62439 | 16:56 Carmarthen station (CMN) | 4h14 | 21:10 London Paddington (PAD) | 1 change | |
| W35437 | 18:20 Carmarthen station (CMN) | 3h49 | 22:09 London Paddington (PAD) | 0 changesdirect | |
| G15051+W44511 | 18:57 Carmarthen station (CMN) | 4h14 | 23:11 London Paddington (PAD) | 1 change | |
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: Great Western Railway, Transport for Wales from Carmarthen to London trainsGreat Western Railway, Transport for Wales trains will get you between Carmarthen and London from £14. With over 1000 travel companies on Omio, you can find the best train times and tickets for your trip.
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
£38
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
£45
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
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 National Gallery
National collection of European painting from Van Gogh to Turner in a landmark Trafalgar Square setting.
- Must visit
Victoria and Albert Museum
Vast museum of art, design and performance, loved for fashion, sculpture and major temporary exhibitions.
- Must visit
South Bank
Lively pedestrian riverside route linking major sights, street performers, markets and excellent views across the Thames.
- Must visit
Trafalgar Square
West End square famous for lions, fountains and events, surrounded by galleries and central to many first-time visits.
- Must visit
Hyde Park
Grand royal park with Serpentine lake, broad paths and easy walks to Kensington Palace and Buckingham Palace.
Full English Breakfast
A classic breakfast of sausages, bacon, eggs, beans, mushrooms and toast. A staple of British cafés and weekend dining across London.
Fish and Chips
Pale ale battered fish with chips, usually served with mushy peas and tartare sauce. A long-standing favourite in London pubs and chippies.
Pie and Mash
Slow-cooked beef in rich gravy topped with mashed potato. This hearty pie is closely associated with East London working-class food culture.
The Savoy
Luxury hotel venue renowned for formal afternoon tea with fine pastries, sandwiches and impeccable service in grand surroundings.
Gymkhana
Refined Indian restaurant with a Michelin star, celebrated for polished cooking and a landmark role in London’s modern dining scene.
Rules
Historic dining room famed for traditional British pies, roast meats and classic puddings in elegant, old-school surroundings.
Pound sterling (£)
Very costly by European standards; hotels, dining and transport are notably pricier than in most UK and EU city breaks.
Average meal costs
- Budget
- £8-15 for fast food or street food.
- Mid-range
- £20-40 per person for a meal.
- Fine dining
- £80+ per person for upscale restaurants.
- Coffee
- £3-5 for a cappuccino.
Tipping culture
Restaurants often add a 12.5% service charge; if not, tip 10-12%. Taxis: round up or 10%. Cafés: no obligation, small change optional.
TfL Go
Get the appOfficial public transport app
Prices
- Single ticket
- £2.80
- Day pass
- £16.60
To the city centre
London Waterloo -> London Charing Cross, London
- Distance
- 1 km
- Travel time
- 10 min
- Contactless bank cards and mobile wallets work across Tube, buses, trams, DLR, London Overground, Elizabeth line and most National Rail services in London.
- Always use the same card or device for touch in and touch out. Buses and trams require touch in only.
FAQs: Carmarthen to London train
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.
The cost of a train ticket from Carmarthen to London can vary. The cheapest tickets are usually available from £38, while the average price tends to be around £73.
The train journey from Carmarthen to London covers a distance of 291 km and takes approximately 3h 24m. Trains run 19 per day.
The train distance from Carmarthen to London is 291 km.
The first train from Carmarthen to London leaves at 3:27.
The last train from Carmarthen to London departs at 22:49.
Trains from Carmarthen to London run approximately 19 times per day.
Yes, there is a high-speed train service from Carmarthen to London.
Yes, there is a direct train between Carmarthen and London. The service operates 5 times per day, provided by Great Western Railway.
Yes, there is a night train from Carmarthen to London.
The train station in Carmarthen that goes to London is Carmarthen station (CMN), and it arrives at London Paddington (PAD).
Booking trains from Carmarthen to London in advance is advisable, especially during peak travel seasons or for long journeys, to ensure availability and secure better fares.
The train journey from Carmarthen to London offers scenic views, particularly as it travels through the picturesque landscapes of South Wales and the rolling countryside of England. Passengers can enjoy glimpses of lush greenery, charming villages, and the Severn Estuary, making parts of the trip visually appealing.
Yes, you can take the train from Carmarthen to London.
popular train stations
Important Stations and Airports in Carmarthen and 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 3450507080
City-centre transport
Getting to Carmarthen from Carmarthen city centre
BusT1x, T1, T1a · 3m · £1 · 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.
London PaddingtonPraed Street, London, Greater London, W2 1HQ, United Kingdom+44 3457114141
City-centre transport
Getting to London Paddington from London city centre
TrainElizabeth · 7m · £2 · every ~21 min
BusN118, N18 · 21m · £4 · every ~6 min
36 · 31m · £21 · every ~29 min
N205 · 32m · £4 · every ~2 min
46 · 1h 22m · £2 · every ~19 min
SubwayBakerloo · 12m · £4 · every ~65 min
London Paddington train station facilities and services
London Paddington has practical services for this route, including Wifi, Lockers, Shopping, Parking, Dining, ATM, Taxis, Accessibility, WC, Hotel, Lounge, Lost and Found Office, Ticket Office, Bike Parking, Bike Rental, Car Rental and Information Desk.
Food and drink
Food options include: Wasabi, The Beer House, Barburrito, Upper Crust, The Mad Bishop & Bear (Fullers), The Pasty Shop, Burger King, Pret a Manger, The Savanna, Soboro Bakery, & more
Wi-Fi and ATMs
Free Wi-Fi in the station. ATMs are located next to the ticket office.
Tickets and information
The ticket office is open 24/7. Information desks are located near Platform 1.
Luggage and lost property
Luggage storage is luggage lockers are located near the taxi stand beside Platform 11. . Lost and found is available at the station.
Parking, taxis and toilets
Available at London Paddington: Parking, Taxis, WC.
Bike and car services
Available at London Paddington: Bike Parking, Bike Rental, Car Rental.
Accessibility
Accessibility facilities are available at London Paddington: Wheelchair access, escalators, elevators.
Shops, hotels and contact
Nearby hotels include Hilton London Paddington, Mercure London Paddington Hotel, The Pilgrm.
London WaterlooLondon Waterloo station, Station Approach, London, Greater London., SE1 8SW+44 3451652030
City-centre transport
Getting to London Waterloo from London city centre
London Waterloo is 1 km from London city centre. Public transport options include:
Bus139 · 10m · £2 · every ~27 min
SubwayNorthern · 3m · £1 · every ~86 min
London Waterloo train station facilities and services
London Waterloo has practical services for this route, including Wifi, Shopping, Parking, Dining, ATM, Accessibility, WC, Hotel, Lost and Found Office, Ticket Office, Bike Parking, Bike Rental, Car Rental and Information Desk.
Food and drink
Food and drink options are available at London Waterloo.
Wi-Fi and ATMs
Wi-Fi is available at London Waterloo. ATMs are available at London Waterloo.
Tickets and information
Ticket office support is available at London Waterloo. Information desks are information available from staff: Yes - from help point,Yes - from information point,Yes - from ticket office, Passenger Information Systems: Departure screens, Announcements, Arrival screens.
Luggage and lost property
Lost and found is available at the station.
Parking, taxis and toilets
Available at London Waterloo: Parking, WC.
Bike and car services
Available at London Waterloo: Bike Parking, Bike Rental, Car Rental.
Accessibility
Accessibility facilities are available at London Waterloo: Staff help available: Yes, Step free access coverage: Yes, Step free access note: There is step free access from the main concourse to all platforms, shops and facilities. Step free exits are exit 1 (Station approach), exit 2 (with a lift to Waterloo Road and lift access to the London Underground Jubilee line), and exit 3 for taxis and onward travel towards the South Bank, Accessible car park equipment: Wheelchair users can use car park equipment at this station unaided, Accessible taxis: Accessible taxis are available from the taxi rank on Cab Road / Station Approach, Accessible ticket machines: There are accessible ticket machines at this station, Accessible ticket machines note: Ticket machines are located at various locations on the main concourse and are accessible to wheelchair users, Accessible toilets: Yes, Ramp for train access: Yes, Wheelchairs available: Yes, Impaired mobility set down / pick up points available: Yes.
Heathrow Terminals 2 & 3Heathrow Airport Terminals 2 & 3 station, Inner Ring Road, Heathrow Airport, Greater London, TW6 1WD
City-centre transport
Getting to Heathrow Terminals 2 & 3 from London city centre
Heathrow Terminals 2 & 3 is 23 km from London city centre. Public transport options include:
TrainElizabeth, London Paddington - Heathrow Terminal 4, London Paddington - Heathrow Terminal 5 · 21m · £31 · every ~3 min
Elizabeth · 41m · £16 · every ~8 min
BusUkn14, Ukn02, Uk043, Uk042, Ukn23, Ukxn10, Ukn49 · 50m · £2 · every ~1 min
Ukxn10 · 50m · £3 · every ~1 min
Ukxn10 · 50m · £3 · every ~1 min
N9 · 1h 11m · £2 · every ~4 min
SubwayPiccadilly · 47m · £19 · every ~27 min
Heathrow Terminals 2 & 3 train station facilities and services
Heathrow Terminals 2 & 3 has practical services for this route, including Wifi, Shopping, Parking, ATM, Accessibility, WC, Lost and Found Office and Ticket Office.
Wi-Fi and ATMs
Wi-Fi is available at Heathrow Terminals 2 & 3. ATMs are available at Heathrow Terminals 2 & 3.
Tickets and information
Ticket office support is available at Heathrow Terminals 2 & 3.
Luggage and lost property
Lost and found is available at the station.
Parking, taxis and toilets
Available at Heathrow Terminals 2 & 3: Parking, WC.
Accessibility
Accessibility facilities are available at Heathrow Terminals 2 & 3: Staff help available: Yes, Step free access coverage: Yes, Step free access note: Level access to platforms, lifts to airport facilities. Ticket Office is step free. Wheelchair users can board trains with ease as the platforms are level with the trains, Accessible ticket machines: There are accessible ticket machines at this station, Accessible toilets: Yes, Ramp for train access: No, Wheelchairs available: Yes, Impaired mobility set down / pick up points available: No.
Most popular train connections from Carmarthen
More options for your journey from Carmarthen to London
Here are some other resources that might have the information you need
Most popular trains to and from London and Carmarthen
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