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4.9
4.6The cheapest and fastest trains from London to Carmarthen
Cheapest price
$95
Average price
$137
Fastest journey
3 h 33 m
Average duration
3 h 37 m
Trains per day
18
Distance
291 km
The best way to find a cheap train ticket from London to Carmarthen is to book your journey as far in advance as possible and to avoid traveling at rush hour.
The average ticket from London to Carmarthen will cost around $137 if you buy it on the day, but the cheapest tickets can be found for only $95.
Of the 18 trains that leave London for Carmarthen on Mon, Jun 22, 6 travel direct so it’s quite easy to avoid journeys where you’ll have to change along the way.
On Mon, Jun 22 the direct trains cover the 291 km distance in an average of 3 h 37 m but if you time it right, some trains will get you there in just 3 h 33 m .
On Mon, Jun 22 the slowest trains will take 3 h 40 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.
W3541711:48 AM3h40London Paddington (PAD)3:28 PMCarmarthen station (CMN)$951One-way0 transfers- W354181:48 PM3h33London Paddington (PAD)5:21 PMCarmarthen station (CMN)$951One-way0 transfers
- W34624+
G3887712:48 PM3h44London Paddington (PAD)4:32 PMCarmarthen station (CMN)$971One-way1 transfer - W35426+G393019:48 PM3h50London Paddington (PAD)1:38 AMCarmarthen station (CMN)$971One-way1 transfer
- W34646+G388907:18 PM3h37London Paddington (PAD)10:55 PMCarmarthen station (CMN)$971One-way1 transfer
- W354181:48 PM3h33London Paddington (PAD)5:21 PMCarmarthen station (CMN)$951One-way0 transfers
- W354194:18 PM3h37London Paddington (PAD)7:55 PMCarmarthen station (CMN)$1271One-way0 transfers
- W34646+G388907:18 PM3h37London Paddington (PAD)10:55 PMCarmarthen station (CMN)$971One-way1 transfer
- G149389:48 AM3h38London Paddington (PAD)1:26 PMCarmarthen station (CMN)$1271One-way0 transfers
- W3541711:48 AM3h40London Paddington (PAD)3:28 PMCarmarthen station (CMN)$951One-way0 transfers
Travel Information
Compare train and bus for London to Carmarthen
Omio recommends booking the train as it is the most popular option from London to Carmarthen among Omio's users. If you are prioritising price take the bus with prices starting from $26. For those with little time consider booking a train which can get you there in 3h 42m. 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 bus costs an average of $26, and a train costs an average of $64.
Distance: 180 miles (291 km)
Compare train with
Most popular Train | Bus | Driving |
|---|---|---|
$90 Average price | $35 Average price Cheapest | $94 Average price (fuel + tolls) |
4h 12m Average total duration Fastest 3h 42m Onboard + 30m Additional time* | 6h 20m Average total duration 5h 50m Onboard + 30m Additional time* | 3h 57m Average total duration (door-to-door) |
0.1 - 0.3kg CO2 emissions Lowest | 0.3 - 0.7kg CO2 emissions | - CO2 emissions |
Most popular train company |  Most popular bus company | Your own car or car rental |
Direct Options | Direct Options | Direct Options |
Additional time: Average total travel duration to departure point, security checks and transfers.
This is compared to other travel options from London to Carmarthen:
A bus is $55 (€45) less than a train for this route with tickets for a train from London to Carmarthen costing on average $90 (€74).
Other travel options to Carmarthen take longer:
Bus takes on average 5h 50m.
The journey is about 15m faster (3h 42m by train vs 3h 57m by car) and roughly $4 (€3) cheaper once you factor in fuel and tolls ($90 (€74) vs $94 (€77)). You'll also arrive in the city centre rather than hunting for parking, and you can work, read, or watch the landscape go by instead of concentrating on the road.
Direct services run with Great Western Railway, Great Western Railway (GWR).
Driving is still worth considering if you want to stop along the way or need a car once you arrive.
Live departures
London to Carmarthen train times
The table below shows live departures for London to Carmarthen trains for today, Sunday, June 21. You can also manually refresh the results below to see updated train journeys.
| Provider | Departs | Duration | Arrives | Transfers | Tickets |
|---|---|---|---|---|---|
| C50048+G38277 | On time 8:33 AM London Paddington (PAD) | 4h34 | 1:07 PM Carmarthen station (CMN) | 1 transfer | |
| C01228 | On time 9:35 AM London Paddington (PAD) | 3h41 | 1:16 PM Carmarthen station (CMN) | 0 transfersDirect | |
| C01227+G38448 | On time 10:45 AM London Paddington (PAD) | 4h06 | 2:51 PM Carmarthen station (CMN) | 1 transfer | |
| C01226 | On time 11:45 AM London Paddington (PAD) | 3h35 | 3:20 PM Carmarthen station (CMN) | 0 transfersDirect | |
| C00840 | On time 1:45 PM London Paddington (PAD) | 3h40 | 5:25 PM Carmarthen station (CMN) | 0 transfersDirect | |
| C50042+G39516 | On time 3:45 PM London Paddington (PAD) | 3h50 | 7:35 PM Carmarthen station (CMN) | 1 transfer | |
| W34659+G39528 | On time 5:45 PM London Paddington (PAD) | 4h07 | 9:52 PM Carmarthen station (CMN) | 1 transfer | |
| C50039+G38938 | On time 7:45 PM London Paddington (PAD) | 3h55 | 11:40 PM Carmarthen station (CMN) | 1 transfer | |
| C01225+G38321 | On time 8:45 PM London Paddington (PAD) | 3h40 | 12:25 AM Carmarthen station (CMN) | 1 transfer | |
| Monday, June 22 | |||||
| W35415 | 6:48 AM London Paddington (PAD) | 3h53 | 10:41 AM Carmarthen station (CMN) | 0 transfersDirect | |
| W35415+G38864 | 6:48 AM London Paddington (PAD) | 3h45 | 10:33 AM Carmarthen station (CMN) | 1 transfer | |
This is the last train of the day. | |||||
Find all the dates and times for this journey
Compare prices and tickets London to Carmarthen by train or bus
Compare train and bus 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.
Jun 21
Jun 22
Jun 23
Jun 24
Jun 25
Jun 26
Jun 27
Jun 28
Jun 29
Jun 30
Jul 01
Jul 02
Jul 03
Jul 04
Jul 05
Jul 06
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Jul 11
Why should you book London to Carmarthen 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 Great Western Railway (GWR) to find the best option for your trip from London to Carmarthen.
- 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 London to Carmarthen.
Why book with Omio over Wanderu?
- Multiple modes of transport: Omio allows you to compare travel options including train and bus to find the ideal travel option from London to Carmarthen.
Journey information
Overview: Train from London to Carmarthen
United KingdomUnited Kingdom
Trains from London to Carmarthen run on average 7 times per day, taking around 3h 42m. Cheap train tickets for this journey start at $64 (€52) but you can travel from only $26 (€21) by bus.
There are 3 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 33m.
Distance 180 miles (291 km) |
Average train duration 3h 42m |
Cheapest ticket price $64 (€52) |
Trains per day 7 |
Direct trains 3 |
Fastest train 3h 33m |
First train 3:27 AM |
Last train 10:49 PM |
Cheapest Month Mar |
Cheapest Day Tue |
High Season Jan - Mar |
Low Season Apr - Jun |
Busiest Day Fri |
Least Busy Day Mon |
Best time to book 63 days |
Train companies: Great Western Railway, Great Western Railway (GWR) from London to Carmarthen trainsGreat Western Railway, Great Western Railway (GWR) trains will get you between London and Carmarthen from $26 (€21). With over 1000 travel companies on Omio, you can find the best train times and tickets for your trip.
Great Western Railway
Great Western Railway (GWR)
FAQs: Trains from London to Carmarthen
Find answers to the most common questions about traveling from London to Carmarthen 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 Carmarthen, this guide helps you travel smarter and with confidence.
popular train stations
Popular train stations from London to Carmarthen
Most London to Carmarthen trains use the London Paddington to Carmarthen station pair. Use this guide to compare London and Carmarthen train stations on this route, check city-centre transport, alongside checking practicalities like train station facilities and services.
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.
Which Carmarthen station do trains from London arrive at?
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.
More options for your journey from London to Carmarthen
Here are some other resources that might have the information you need
Most popular trains to and from Carmarthen and London
Most popular train connections to Carmarthen
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