- Must visit
Carmarthenshire Museum
Former bishop’s palace with outstanding art collections, period rooms, and beautiful grounds; one of Carmarthenshire’s top cultural attractions.
Cheapest price
$91
Average price
$129
Fastest journey
3 h 33 m
Average duration
3 h 37 m
Trains per day
42
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 $129 if you buy it on the day, but the cheapest tickets can be found for only $91.
Of the 42 trains that leave London for Carmarthen on Fri, Aug 14, 6 travel direct so it’s quite easy to avoid journeys where you’ll have to change along the way.
On Fri, Aug 14 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 Fri, Aug 14 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.
W35417
W35418
W34706 · G15016 · W35419
W34648+
G39501
W34617+
G38873
W35418
W35419
W34646+
G38889
G14938
W35417Omio 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)
Most popular Train | Bus | Driving |
|---|---|---|
$91 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 $56 less than a train for this route with tickets for a train from London to Carmarthen costing on average $91.
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 cheaper once you factor in fuel and tolls ($91 vs $94). 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.
The table below shows live departures for London to Carmarthen trains for today, Thursday, August 13. You can also manually refresh the results below to see updated train journeys.
| Provider | Departs | Duration | Arrives | Transfers | Tickets |
|---|---|---|---|---|---|
W35415+ G38864 | On time 6:48 AM London Paddington (PAD) | 3h45 | 10:33 AM Carmarthen station (CMN) | 1 transfer | |
W35415 | 6:48 AM London Paddington (PAD) | 3h53 | 10:41 AM Carmarthen station (CMN) | 0 transfersDirect | |
G14934+ G38292 | On time 7:48 AM London Paddington (PAD) | 3h58 | 11:46 AM Carmarthen station (CMN) | 1 transfer | |
G14935+ G38868 | On time 8:18 AM London Paddington (PAD) | 4h21 | 12:39 PM Carmarthen station (CMN) | 1 transfer | |
L79329+ G15007 · W35417 | On time 8:20 AM London Waterloo (WAT) | 7h08 | 3:28 PM Carmarthen station (CMN) | 2 transfers | |
G26160+ L83878 · L79334+ G15007 | On time 8:35 AM London Victoria (VIC) | 6h53 | 3:28 PM Carmarthen station (CMN) | 4 transfers | |
G27829+ L79342+ G15009+ G38877 | On time 8:36 AM London Victoria (VIC) | 7h56 | 4:32 PM Carmarthen station (CMN) | 3 transfers | |
W35093 · G14936+ G38868 | On time 8:38 AM London Paddington (PAD) | 4h01 | 12:39 PM Carmarthen station (CMN) | 2 transfers | |
C93056+ L80222 · L79342+ G15009 | On time 8:38 AM London Victoria (VIC) | 7h54 | 4:32 PM Carmarthen station (CMN) | 4 transfers | |
G14936+ G38868 | On time 8:48 AM London Paddington (PAD) | 3h51 | 12:39 PM Carmarthen station (CMN) | 1 transfer | |
L79334+ G15007 · W35417 | On time 8:50 AM London Waterloo (WAT) | 6h38 | 3:28 PM Carmarthen station (CMN) | 2 transfers | |
L79342+ G15009+ G38877 | On time 9:20 AM London Waterloo (WAT) | 7h12 | 4:32 PM Carmarthen station (CMN) | 2 transfers | |
G14991 · G14938 | On time 9:23 AM London Paddington (PAD) | 4h03 | 1:26 PM Carmarthen station (CMN) | 1 transfer | |
G14938 | On time 9:48 AM London Paddington (PAD) | 3h38 | 1:26 PM Carmarthen station (CMN) | 0 transfersDirect | |
W34617+ G38873 | On time 10:16 AM London Paddington (PAD) | 4h17 | 2:33 PM Carmarthen station (CMN) | 1 transfer | |
W34874 · W34618+ G38873 | On time 10:23 AM London Paddington (PAD) | 4h10 | 2:33 PM Carmarthen station (CMN) | 2 transfers | |
W34618+ G38873 | On time 10:48 AM London Paddington (PAD) | 3h45 | 2:33 PM Carmarthen station (CMN) | 1 transfer | |
W35069 · W35417 | On time 11:32 AM London Paddington (PAD) | 3h56 | 3:28 PM Carmarthen station (CMN) | 1 transfer | |
C93085+ L79366+ W34999+ G38305 | On time 11:36 AM London Victoria (VIC) | 6h22 | 5:58 PM Carmarthen station (CMN) | 3 transfers | |
W35417 | On time 11:48 AM London Paddington (PAD) | 3h40 | 3:28 PM Carmarthen station (CMN) | 0 transfersDirect | |
W34622+ G38877 | On time 12:13 PM London Paddington (PAD) | 4h19 | 4:32 PM Carmarthen station (CMN) | 1 transfer | |
G14984 · W34624+ G38877 | On time 12:35 PM London Paddington (PAD) | 3h57 | 4:32 PM Carmarthen station (CMN) | 2 transfers | |
W34624+ G38877 | On time 12:48 PM London Paddington (PAD) | 3h44 | 4:32 PM Carmarthen station (CMN) | 1 transfer | |
W35418 | On time 1:48 PM London Paddington (PAD) | 3h33 | 5:21 PM Carmarthen station (CMN) | 0 transfersDirect | |
Y15423 · W34629+ G38880 | On time 1:50 PM London Paddington (PAD) | 5h01 | 6:51 PM Carmarthen station (CMN) | 2 transfers | |
W34629+ G38880 | On time 2:15 PM London Paddington (PAD) | 4h36 | 6:51 PM Carmarthen station (CMN) | 1 transfer | |
W34817 · W34630+ G38880 | On time 2:36 PM London Paddington (PAD) | 4h15 | 6:51 PM Carmarthen station (CMN) | 2 transfers | |
C93115+ L79400+ G15018 · G14942 | On time 2:38 PM London Victoria (VIC) | 7h01 | 9:39 PM Carmarthen station (CMN) | 3 transfers | |
G26427+ L79406+ G15020+ G38890 | On time 2:46 PM London Victoria (VIC) | 8h09 | 10:55 PM Carmarthen station (CMN) | 3 transfers | |
W34634+ G38309+ C37191 | Delayed 3:13 PM 2:47 PMLondon Paddington (PAD) | 4h49 | 7:36 PM Carmarthen station (CMN) | 2 transfers | |
W34706 · G15016 · W35419 | On time 3:00 PM London Paddington (PAD) | 4h55 | 7:55 PM Carmarthen station (CMN) | 2 transfers | |
W34634+ G38309 | On time 3:48 PM London Paddington (PAD) | 3h48 | 7:36 PM Carmarthen station (CMN) | 1 transfer | |
L79411+ G15020+ G38890 | 3:50 PM London Waterloo (WAT) | 7h05 | 10:55 PM Carmarthen station (CMN) | 2 transfers | |
W35419 | On time 4:18 PM London Paddington (PAD) | 3h37 | 7:55 PM Carmarthen station (CMN) | 0 transfersDirect | |
W34637+ G38885 | On time 4:48 PM London Paddington (PAD) | 3h42 | 8:30 PM Carmarthen station (CMN) | 1 transfer | |
L79424+ G15021+ G38890 | 4:50 PM London Waterloo (WAT) | 6h05 | 10:55 PM Carmarthen station (CMN) | 2 transfers | |
L79968 · L79428+ G15023+ G38328 | 5:09 PM London Waterloo (WAT) | 7h06 | 12:15 AM Carmarthen station (CMN) | 3 transfers | |
W34946 · G14942 | 5:20 PM London Paddington (PAD) | 4h19 | 9:39 PM Carmarthen station (CMN) | 1 transfer | |
G14942 | 5:48 PM London Paddington (PAD) | 3h51 | 9:39 PM Carmarthen station (CMN) | 0 transfersDirect | |
W34646+ G38890 | On time 7:18 PM London Paddington (PAD) | 3h37 | 10:55 PM Carmarthen station (CMN) | 1 transfer | |
W34648+ G38328 | On time 7:48 PM London Paddington (PAD) | 4h27 | 12:15 AM Carmarthen station (CMN) | 1 transfer | |
G14945+ AW886400 | 8:48 PM London Paddington (PAD) | 4h48 | 1:36 AM Carmarthen station (CMN) | 1 transfer | |
W35426+ AW717300 | On time 9:48 PM London Paddington (PAD) | 4h25 | 2:13 AM Carmarthen station (CMN) | 1 transfer | |
This is the last train of the day. | |||||
Find all the dates and times for this journey
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.
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 but you can travel from only $26 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 |
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 |
Discover the best of Carmarthen — top attractions, local food, transport tips, budget advice, and currency essentials. Plan your perfect Carmarthen trip today.
Former bishop’s palace with outstanding art collections, period rooms, and beautiful grounds; one of Carmarthenshire’s top cultural attractions.
Main county museum in a former bishop’s palace, displaying archaeology, social history, and fine art linked to the region.
Contemporary arts venue in a converted chapel with exhibitions, craft, design, and a strong programme of Welsh creative work.
Restored public garden beside the castle, popular for river views, events, and an easy walk close to the historic centre.
Historic town square and civic focus, framed by important buildings and often used as a convenient orientation point for visitors.
Linear riverside park and walking route along the Towy, offering open views, wildlife interest, and a pleasant break from the centre.
Traditional Welsh cakes griddled with flour, butter, sugar and dried fruit. A classic teatime treat sold across Carmarthenshire and eaten warm or cold.
A rich fruit loaf made with tea, dried fruit and spices. Long linked with Welsh home baking and often served sliced with butter.
Creamy Welsh cheese sauce poured over toasted bread. It is a beloved comfort food and a traditional way to enjoy local Caerphilly-style cheese.
Refined modern dining in a smart country-house setting near Carmarthen, known for seasonal Welsh ingredients and polished tasting-style menus.
Established local cafe and bakery stop for Welsh cakes, bara brith, breakfasts and coffee, with a casual atmosphere for quick local bites.
Popular gastropub in Carmarthen with Welsh produce, steaks, seafood and a lively but relaxed atmosphere in a historic coaching inn.
Moderate for the UK: hotels and meals are usually cheaper than major cities, while local buses and everyday costs stay manageable for most visitors.
Service is often included or optional. In restaurants, tip 10-12.5% for good service if not included. Taxis are usually rounded up. Cafe tipping is optional.
Official public transport app
Carmarthen Railway Station -> Guildhall Square, 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.

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.
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 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
Free Wi-Fi in the station. ATMs are located next to the ticket office.
The ticket office is open 24/7. Information desks are located near Platform 1.
Luggage storage is luggage lockers are located near the taxi stand beside Platform 11. . Lost and found is available at the station.
Available at London Paddington: Parking, Taxis, WC.
Available at London Paddington: Bike Parking, Bike Rental, Car Rental.
Accessibility facilities are available at London Paddington: Wheelchair access, escalators, elevators.
Nearby hotels include Hilton London Paddington, Mercure London Paddington Hotel, The Pilgrm.
London Victoria is 1 km from London city centre. Public transport options include:
London Victoria 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, and Information Desk.
Food and drink options are available at London Victoria.
Wi-Fi is available at London Victoria. ATMs are available at London Victoria.
Ticket office support is available at London Victoria. Information desks are information available from staff: Yes - from help point, Passenger Information Systems: Departure screens, Announcements, Arrival screens.
Lost and found is available at the station.
Available at London Victoria: Parking, WC.
Available at London Victoria: Bike Parking, Bike Rental.
Accessibility facilities are available at London Victoria: Staff help available: Yes, Step free access coverage: Yes, Step free access note: There is step free access at London Victoria Rail Station to the Victoria Line on the Underground. This can be accessed via the Cardinal Place entrance to the underground, Accessible car park equipment: Wheelchair users may require assistance using car park equipment at this station, Accessible public telephones: Main concourse, Accessible taxis: Available on request Taxi rank outside main station entrance, Accessible ticket machines: There are no accessible ticket machines at this station, Accessible toilets: Yes, Ramp for train access: Yes, Wheelchairs available: Yes, Wheelchairs available open hours: Monday - Sunday 24 Hours a Day, Impaired mobility set down / pick up points available: Yes.
Heathrow Terminals 2 & 3 is 23 km from London city centre. Public transport options include:
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 is available at Heathrow Terminals 2 & 3. ATMs are available at Heathrow Terminals 2 & 3.
Ticket office support is available at Heathrow Terminals 2 & 3.
Lost and found is available at the station.
Available at Heathrow Terminals 2 & 3: Parking, WC.
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.
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 options are available at Carmarthen.
Ticket office support is available at Carmarthen.
Lost and found is available at the station.
Available at Carmarthen: Parking, WC.
Available at Carmarthen: Bike Parking, Bike Rental.
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.
Here are some other resources that might have the information you need