The cheapest and fastest trains from London to Carmarthen
Cheapest price
$84
Average price
$99
Fastest journey
3 h 33 m
Average duration
3 h 41 m
Trains per day
6
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 $99 if you buy it on the day, but the cheapest tickets can be found for only $84.
Of the 6 trains that leave London for Carmarthen on Tue, Dec 23, 3 travel direct so it’s quite easy to avoid journeys where you’ll have to change along the way.
On Tue, Dec 23 the direct trains cover the 291 km distance in an average of 3 h 41 m but if you time it right, some trains will get you there in just 3 h 33 m .
On Tue, Dec 23 the slowest trains will take 3 h 44 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.
P22622
P22630
P22626
P22628+
L64726
P22624+
L64722
P22630
P22626
P22622
P22628+
L64726
P22624+
L64722Travel 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 €19. For those with little time consider booking a train which can get you there in 3h 45m. 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 €19, and a train costs an average of €43.
Distance: 180 miles (291 km)
Compare train with
Most popular Train | Bus |
|---|---|
€74 Average price | €35 Average price Cheapest |
4h 15m Average total duration Fastest 3h 45m Onboard + 30m Additional time* | 6h 10m Average total duration 5h 40m 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
London to Carmarthen train times
The table below shows live departures for London to Carmarthen trains for today, Monday, December 22. You can also manually refresh the results below to see updated train journeys.
| Provider | Departs | Duration | Arrives | Transfers | Tickets |
|---|---|---|---|---|---|
P22620+ L64718 | On time 8:48 AM London Paddington (PAD) | 3h51 | 12:39 PM Carmarthen station (CMN) | 1 transfer | |
P22622 | On time 9:48 AM London Paddington (PAD) | 3h42 | 1:30 PM Carmarthen station (CMN) | 0 transfersDirect | |
P22624+ L64722 | On time 10:48 AM London Paddington (PAD) | 3h44 | 2:32 PM Carmarthen station (CMN) | 1 transfer | |
P22626 | On time 11:48 AM London Paddington (PAD) | 3h41 | 3:29 PM Carmarthen station (CMN) | 0 transfersDirect | |
P22628+ L64726 | On time 12:48 PM London Paddington (PAD) | 3h44 | 4:32 PM Carmarthen station (CMN) | 1 transfer | |
P22630 | On time 1:48 PM London Paddington (PAD) | 3h33 | 5:21 PM Carmarthen station (CMN) | 0 transfersDirect | |
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.
Dec 23
Dec 24
Dec 25
Dec 26
Dec 27
Dec 28
Dec 29
Dec 30
Dec 31
Jan 01
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Jan 12
Why should you book London to Carmarthen trains with Omio?
Great Western Rail as well as first_great_western offer trains services from London to Carmarthen. Omio is an official ticket reseller for all your travel options from London to Carmarthen.
Why book with Omio vs Great Western Rail?
- Compare with other providers: On Omio, you can not only buy tickets for Great Western Rail, but also compare tickets for the likes of first_great_western 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 Rail 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 Trainline and Rail Europe?
- Multiple travel company options: While Great Western Rail tickets can be bought on Great Western Rail's website or third party sellers, Omio allows you to compare with the likes of first_great_western to help you choose the right option for your journey from London to Carmarthen.
- 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
Trains from London to Carmarthen run on average 6 times per day, taking around 3h 45m. Cheap train tickets for this journey start at $53 (€43) but you can travel from only $24 (€19) by bus.
There are 2 trains per day. The earliest train runs at 03:27, the last at 23:40. The fastest train covers the 180 miles (291 km) distance in 3h 33m.
Distance 180 miles (291 km) |
Average train duration 3h 45m |
Cheapest ticket price $53 (€43) |
Trains per day 6 |
Direct trains 2 |
Fastest train 3h 33m |
First train 03:27 |
Last train 23:40 |
Train companies: Great Western Rail, first_great_western from London to Carmarthen trainsGreat Western Rail, first_great_western trains will get you between London and Carmarthen from $24 (€19). With over 1000 travel companies on Omio, you can find the best train times and tickets for your trip.
Great Western Rail
first_great_western
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
- 24/7
- Free Wi-Fi in the station.
- Luggage lockers are located near the taxi stand beside Platform 11.
- Type of shops available: News agent Flower stall Shoe repairer Wide range of shops Mini supermarket Pharmacy Convenience store High street shops Off Licence Passport Photo Booth
- Car Park: Station Car Park
- 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
- Taxi: The taxi deck is situated above Platform 12 and is accessed via the concourse and platform 12, which has escalators and lifts to the upper level to the covered marshalled taxi rank. A queuing system is in operation. There is also a separate collection point for pre-booked taxis and a drop off point
- Accessible taxis: All London Black Cabs can accommodate wheelchair passengers without wheelchair users having to leave their wheelchair. There is also a separate collection point for prebooked taxis also further away from the lifts.
- Wheelchair access, escalators, elevators.
- Toilets Location: Accessible toilets are located on Platforms' 1 and 12. A Changing Places facility is located on Platform 12. There are dedicated breastfeeding rooms / Parent & Baby rooms; within the Ladies toilets on Platform 1 within the public toilets on Platform 12.
- National key toilets: Yes
- National key toilets location: Accessible toilets are located on Platforms 1 and 12.
- Baby changing facilities: Yes
- Hilton London Paddington
- Mercure London Paddington Hotel
- The Pilgrm
- Waiting rooms location: Platform 12
- 24/7
- Storage sheltered: Yes
- Storage location: On platform 8/9 and 10
- Storage CCTV: Yes
- Located near Platform 1.
- Underground lines: Bakerloo Line, Circle Line, District Line, Hammersmith Line
- Bus lines: N7, 23, 27, N27, 36, 205, N205, 332, 7, 46, A1, 18, N18
- Train lines: Great Western Main Line, Heathrow Express
- Metro: Tube Lines.
- Opening hours: Monday - Sunday 05:00 - 23:59
- Car Park: No
- 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
- National key toilets: No
- Baby changing facilities: Yes
- Onward travel information: National Rail trains serving London Paddington National Express coaches to Victoria Coach Station and Gatwick Airport London Underground
- Metro: Connection available with the London Underground (Piccadilly Line)
- Opening hours: Monday - Sunday 05:00 - 23:40
- Car Park: No
- 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
- National key toilets: No
- Baby changing facilities: Yes
- Metro: Connection available with LT Piccadilly Line
- Opening hours: Monday - Friday 06:45 - 18:00
- Type of shops available: News agent
- Car Park: Station Car Park
- 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
- Toilets Location: The toilets are located on Platform 1. The National key toilets are located on Platform 1; these toilets are operated by a radar key.
- National key toilets: Yes
- Baby changing facilities: No
- Storage sheltered: No
- Storage location: On Platform 1
- Storage CCTV: Yes
- Location for Rail Replacement Services: Wait at the bus stop opposite the station entrance
More options for your journey from London to Carmarthen
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