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4.9
4.6The cheapest and fastest trains from Carmarthen to London
Cheapest price
£74
Average price
£90
Fastest journey
4 h 12 m
Average duration
4 h 16 m
Trains per day
38
Distance
291 km
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 £90 if you buy it on the day, but you can find cheap train tickets today for only £74.
Of the 38 trains that leave Carmarthen for London every day 6 travel direct so it’s quite easy to avoid journeys where you’ll have to change along the way.
These direct trains cover the 291 km distance in an average of 4 h 16 m but if you time it right, some trains will get you there in just 4 h 12 m .
The slowest trains will take 4 h 21 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.
W3543411:274h12Carmarthen station (CMN)15:39London Paddington (PAD)£741One-way0 changes- W3543718:204h20Carmarthen station (CMN)22:40London Paddington (PAD)£741One-way0 changes
- W354327:234h21Carmarthen station (CMN)11:44London Paddington (PAD)£791One-way0 changes
- W3543514:204h39Carmarthen station (CMN)18:59London Paddington (PAD)£791One-way0 changes
- G150459:214h29Carmarthen station (CMN)13:50London Paddington (PAD)£791One-way0 changes
- W3543411:274h12Carmarthen station (CMN)15:39London Paddington (PAD)£741One-way0 changes
G39158+W351675:324h12Carmarthen station (CMN)9:44London Paddington (PAD)£1861One-way1 change- G15040+G384424:374h14Carmarthen station (CMN)8:51London Paddington (PAD)£1861One-way1 change
- W3543718:204h20Carmarthen station (CMN)22:40London Paddington (PAD)£741One-way0 changes
- W354327:234h21Carmarthen station (CMN)11:44London Paddington (PAD)£791One-way0 changes
Travel Information
Compare train and coach for Carmarthen to London
Omio recommends booking the train as it is the most popular option from Carmarthen to London among Omio's users. If you are prioritising price take the coach with prices starting from £19. For those with little time consider booking a train which can get you there in 3h 54m. In case you are seeking to minimise your carbon footprint the train is your best bet as it emits only 0.1 - 0.3kg. The ticket price range depends on the travel mode: a coach costs an average of £19, and a train costs an average of £60.
Distance: 291 km
Compare train with
Most popular Train | Coach |
|---|---|
£72 Average Price | £27 Average Price Cheapest |
4h 24m Average total duration Fastest 3h 54m Onboard + 30m Additional time* | 6h 38m Average total duration 6h 8m Onboard + 30m Additional time* |
0.1 - 0.3kg CO2 emissions Lowest | 0.3 - 0.7kg CO2 emissions |
Most popular train company |  Most popular bus company |
Direct Options | Direct Options |
Additional time: Average total travel duration to departure point, security checks and transfers.
Live departures
Carmarthen to London train times
The table below shows live departures for Carmarthen to London trains for today, Tuesday 21 July. You can also manually refresh the results below to see updated train journeys.
| Provider | Departs | Duration | Arrives | Changes | Tickets |
|---|---|---|---|---|---|
| G38312+G15051 | On time 18:57 Carmarthen station (CMN) | 4h45 | 23:42 London Paddington (PAD) | 1 change | |
| G38312+G15193 · G14914 | On time 18:57 Carmarthen station (CMN) | 4h38 | 23:35 London Paddington (PAD) | 2 changes | |
| Wednesday 22 July | |||||
| G38442+G15040 | 4:37 Carmarthen station (CMN) | 4h14 | 8:51 London Paddington (PAD) | 1 change | |
G38442+G15040 · G15001+ L79353 | 4:37 Carmarthen station (CMN) | 5h43 | 10:20 London Waterloo (WAT) | 3 changes | |
| G38442+G15040 · G15001+L79353 | 4:37 Carmarthen station (CMN) | 5h52 | 10:29 London Victoria (VIC) | 4 changes | |
| G39158+W35167 | 5:32 Carmarthen station (CMN) | 4h12 | 9:44 London Paddington (PAD) | 1 change | |
| G39158+W35167 · G15003+L79364 | 5:32 Carmarthen station (CMN) | 5h44 | 11:16 London Waterloo (WAT) | 3 changes | |
| G39158+W35167 · G15003+L79364 | 5:32 Carmarthen station (CMN) | 5h56 | 11:28 London Victoria (VIC) | 5 changes | |
| G38947+G15041 | 6:01 Carmarthen station (CMN) | 4h53 | 10:54 London Paddington (PAD) | 1 change | |
| G38947+G15184 · G14899 | 6:01 Carmarthen station (CMN) | 5h06 | 11:07 London Paddington (PAD) | 2 changes | |
| W35432 | 7:23 Carmarthen station (CMN) | 4h21 | 11:44 London Paddington (PAD) | 0 changesdirect | |
| W35432 · G15006 · G14900 | 7:23 Carmarthen station (CMN) | 4h46 | 12:09 London Paddington (PAD) | 2 changes | |
| G39180+W35178 | 8:30 Carmarthen station (CMN) | 4h27 | 12:57 London Paddington (PAD) | 1 change | |
| G39180+G15187 · G14903 | 8:30 Carmarthen station (CMN) | 5h04 | 13:34 London Paddington (PAD) | 2 changes | |
| G15045 | 9:21 Carmarthen station (CMN) | 4h29 | 13:50 London Paddington (PAD) | 0 changesdirect | |
| G15045 · G15010 · W34490 | 9:21 Carmarthen station (CMN) | 4h44 | 14:05 London Paddington (PAD) | 2 changes | |
| G38953+G15188 · W34493 | 9:58 Carmarthen station (CMN) | 4h37 | 14:35 London Paddington (PAD) | 2 changes | |
| G39193+G15046 | 10:24 Carmarthen station (CMN) | 4h31 | 14:55 London Paddington (PAD) | 1 change | |
| G39193+Y41669 · W34498 | 10:24 Carmarthen station (CMN) | 5h12 | 15:36 London Paddington (PAD) | 2 changes | |
| W35434 · G15013 · G14905 | 11:27 Carmarthen station (CMN) | 4h40 | 16:07 London Paddington (PAD) | 2 changes | |
| W35434 | 11:27 Carmarthen station (CMN) | 4h12 | 15:39 London Paddington (PAD) | 0 changesdirect | |
| G38955+G15189 · G14906 | 11:59 Carmarthen station (CMN) | 4h38 | 16:37 London Paddington (PAD) | 2 changes | |
| G39205+W35188 | 12:30 Carmarthen station (CMN) | 4h29 | 16:59 London Paddington (PAD) | 1 change | |
| G38294+G15049 | 12:56 Carmarthen station (CMN) | 4h48 | 17:44 London Paddington (PAD) | 1 change | |
| G38294+Y41675 · G14908 | 12:56 Carmarthen station (CMN) | 4h39 | 17:35 London Paddington (PAD) | 2 changes | |
| G38957+G15190 · W34513 | 13:54 Carmarthen station (CMN) | 4h45 | 18:39 London Paddington (PAD) | 2 changes | |
| W35435 | 14:20 Carmarthen station (CMN) | 4h39 | 18:59 London Paddington (PAD) | 0 changesdirect | |
| W35435 · G15019 · G14909 | 14:20 Carmarthen station (CMN) | 4h48 | 19:08 London Paddington (PAD) | 2 changes | |
| G39217+W35435 | 14:33 Carmarthen station (CMN) | 4h26 | 18:59 London Paddington (PAD) | 1 change | |
| G38300+G15191 · G14910 | 14:55 Carmarthen station (CMN) | 4h42 | 19:37 London Paddington (PAD) | 2 changes | |
| G38300+W35198 | 14:55 Carmarthen station (CMN) | 4h49 | 19:44 London Paddington (PAD) | 1 change | |
| G38959+Y41684 · G15082 · G15050 | 16:04 Carmarthen station (CMN) | 4h57 | 21:01 London Paddington (PAD) | 3 changes | |
| G15050 | 16:19 Carmarthen station (CMN) | 4h42 | 21:01 London Paddington (PAD) | 0 changesdirect | |
| G15050 · G15022 · W34523 | 16:19 Carmarthen station (CMN) | 4h49 | 21:08 London Paddington (PAD) | 2 changes | |
| G39241+G15050 | 16:33 Carmarthen station (CMN) | 4h28 | 21:01 London Paddington (PAD) | 1 change | |
| G38303+W35202 | 16:56 Carmarthen station (CMN) | 4h49 | 21:45 London Paddington (PAD) | 1 change | |
| G38303+G15192 · G14913 | 16:56 Carmarthen station (CMN) | 5h39 | 22:35 London Paddington (PAD) | 2 changes | |
| W35437 | 18:20 Carmarthen station (CMN) | 4h20 | 22:40 London Paddington (PAD) | 0 changesdirect | |
This is the last train of the day. | |||||
Find all the dates and times for this journey
Compare prices and tickets Carmarthen to London by train or coach
Compare train and coach prices over the next three weeks. See the best deals at a glance, find the lowest fares, and choose the option that fits your budget.
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Why should you book Carmarthen to London trains with Omio?
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, Great Western Railway (GWR) or 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 train and bus 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, Great Western Railway (GWR) or 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 train and bus to find the ideal travel option from Carmarthen to London.
How far in advance should I book train tickets from Carmarthen to London?
Journey information
Overview: Train from Carmarthen to London
United KingdomUnited Kingdom
Trains from Carmarthen to London run on average 7 times per day, taking around 3h 54m. Cheap train tickets for this journey start at £60 but you can travel from only £19 by coach.
There are 2 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 42m.
Distance 291 km |
Average train duration 3h 54m |
Cheapest ticket price £60 |
Trains per day 7 |
Direct trains 2 |
Fastest train 3h 42m |
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 Sat |
Best time to book 70 days |
Train companies: Great Western Railway, Transport for Wales, Great Western Railway (GWR) from Carmarthen to London trainsGreat Western Railway, Transport for Wales, Great Western Railway (GWR) trains will get you between Carmarthen and London from £19. With over 1000 travel companies on Omio, you can find the best train times and tickets for your trip.
Great Western Railway
Transport for Wales
Great Western Railway (GWR)
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.
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 Heathrow Terminals 2 & 3. 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.
Which Carmarthen station do trains to London leave from?
Getting to Carmarthen from Carmarthen city centre
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.
Getting to London Paddington from London city centre
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.
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:
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.
Getting to Heathrow Terminal 5 from London city centre
Heathrow Terminal 5 is 25 km from London city centre. Public transport options include:
Heathrow Terminal 5 train station facilities and services
Heathrow Terminal 5 has practical services for this route, including Parking, Accessibility, Lounge, Lost and Found Office and Ticket Office.
Tickets and information
Ticket office support is available at Heathrow Terminal 5.
Luggage and lost property
Lost and found is available at the station.
Parking, taxis and toilets
Available at Heathrow Terminal 5: Parking.
Accessibility
Accessibility facilities are available at Heathrow Terminal 5: 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, Ramp for train access: Yes, 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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