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The cheapest and fastest trains from Carmarthen to London
Showing times and prices for 05 Dec
Cheapest price
£71
Average price
£72
Fastest journey
3 h 35 m
Average duration
3 h 41 m
Trains per day
6
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 £72 if you buy it on the day, but you can find cheap train tickets today for only £71.
Fast trains
Of the 6 trains that leave Carmarthen for London every day 2 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 3 h 41 m but if you time it right, some trains will get you there in just 3 h 35 m .
The slowest trains will take 3 h 45 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.
P0848711:273h45
Carmarthen station (CMN)15:12London Paddington (PAD)
£711One-way
0 changes
P0848309:213h49
Carmarthen station (CMN)13:10London Paddington (PAD)
£711One-way
0 changes
G56285+P0848108:313h40
Carmarthen station (CMN)12:11London Paddington (PAD)
£721One-way
1 change
G56295+P0848510:313h43
Carmarthen station (CMN)14:14London Paddington (PAD)
£721One-way
1 change
G55320+P0849012:583h43
Carmarthen station (CMN)16:41London Paddington (PAD)
£721One-way
1 change
G56306+P0848912:343h35
Carmarthen station (CMN)16:09London Paddington (PAD)
£721One-way
1 change
G56285+P0848108:313h40
Carmarthen station (CMN)12:11London Paddington (PAD)
£721One-way
1 change
G56295+P0848510:313h43
Carmarthen station (CMN)14:14London Paddington (PAD)
£721One-way
1 change
G55320+P0849012:583h43
Carmarthen station (CMN)16:41London Paddington (PAD)
£721One-way
1 change
P0848711:273h45
Carmarthen station (CMN)15:12London Paddington (PAD)
£711One-way
0 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 £18. For those with little time consider booking a train which can get you there in 3h 50m. 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 £18, and a train costs an average of £39.
Distance: 291 km
Compare train with
Most popular Train | Coach |
|---|---|
£66 Average Price | £30 Average Price Cheapest |
4h 20m Average total duration Fastest 3h 50m Onboard + 30m Additional time* | 6h 33m Average total duration 6h 3m 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, Thursday 4 December. You can also manually refresh the results below to see updated train journeys.
Last updated at 16:30
| Provider | Departs | Duration | Arrives | Changes | Tickets |
|---|---|---|---|---|---|
| 17:18 Carmarthen | 3h51 | 21:09 London | 0 changesdirect | |
| 17:57 Carmarthen | 5h15 | 23:12 London | 0 changesdirect | |
| Friday 5 December | |||||
| G56285+P08481 | On time 08:31 Carmarthen station (CMN) | 3h40 | 12:11 London Paddington (PAD) | 1 change | |
| P08483 | On time 09:21 Carmarthen station (CMN) | 3h49 | 13:10 London Paddington (PAD) | 0 changesdirect | |
| G56295+P08485 | On time 10:31 Carmarthen station (CMN) | 3h43 | 14:14 London Paddington (PAD) | 1 change | |
| P08487 | On time 11:27 Carmarthen station (CMN) | 3h45 | 15:12 London Paddington (PAD) | 0 changesdirect | |
| G56306+P08489 | On time 12:34 Carmarthen station (CMN) | 3h35 | 16:09 London Paddington (PAD) | 1 change | |
| G55320+P08490 | On time 12:58 Carmarthen station (CMN) | 3h43 | 16:41 London Paddington (PAD) | 1 change | |
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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How far in advance should I book train tickets from Carmarthen to London?
The best time to book your train from Carmarthen to London is 7 days before departure. See how prices for trains change on the Carmarthen to London route.
Prices are for one-way tickets for one passenger from Carmarthen to London per month. Insights are sourced from fares found by Omio users in the last 12 months. Current prices may differ as prices vary depending on the time of day, class or how far in advance you book your train from Carmarthen to London.
Trains
from £61Journey information
Overview: Train from Carmarthen to London
United KingdomUnited Kingdom
Trains from Carmarthen to London run on average 6 times per day, taking around 3h 50m. Cheap train tickets for this journey start at £39 but you can travel from only £18 by coach.
There are 2 trains per day. The earliest train runs at 03:27, the last at 23:40. The fastest train covers the 291 km distance in 3h 37m.
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 £18
Distance 291 km |
Average train duration 3h 50m |
Cheapest ticket price £39 |
Trains per day 6 |
Direct trains 2 |
Fastest train 3h 37m |
First train 03:27 |
Last train 23:40 |
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 £18
Train companies: Great Western Rail, Transport for Wales, first_great_western from Carmarthen to London trainsGreat Western Rail, Transport for Wales, first_great_western trains will get you between Carmarthen and London from £18. With over 1000 travel companies on Omio, you can find the best train times and tickets for your trip.
Great Western Rail
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 Duration
3h 37m
Cheapest Price
£39
Great Western Rail frequency
6 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 Duration
4h 14m
Cheapest Price
£73
Transport for Wales frequency
2 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
first_great_western
Luggage & cancellation policy
Average Duration
3h 45m
Cheapest Price
£184
first_great_western frequency
5 a day
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.
For a first-time visitor to London, 3 to 4 days is usually sufficient to explore major attractions such as the British Museum, Tower of London, Buckingham Palace, and the West End.
A day trip from Carmarthen to London is not feasible as the journey takes 3h 37m each way. Trains are available 6 times per day.
In London, you can enjoy panoramic views from The London Eye, catch a theatrical production in the vibrant West End Theatre District, and explore the eclectic Camden Market. Take a leisurely walk through Hyde Park or visit the Tate Modern for contemporary art. Don't miss the British Museum's vast collection, the historic Tower of London, iconic Buckingham Palace, and the political landmarks of the Houses of Parliament and Big Ben. St. Paul's Cathedral offers architectural beauty and rich history.
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 cost of a train ticket from Carmarthen to London can vary. The cheapest tickets are usually available from £39, while the average price tends to be around £66.
The train journey from Carmarthen to London covers a distance of 291 km and takes approximately 3h 37m. Trains run 6 per day.
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.
The train station in Carmarthen that goes to London is Carmarthen station (CMN), and it arrives at London Paddington (PAD).
The cheapest way to get from Carmarthen to London is by coach, costing approximately £18.
The first train from Carmarthen to London leaves at 3:27.
The train distance from Carmarthen to London is 291 km.
The last train from Carmarthen to London departs at 23:40.
Trains from Carmarthen to London run approximately 6 times per day.
Yes, there is a direct train between Carmarthen and London. The service operates 2 times per day, provided by Great Western Rail, first_great_western.
Currently, there is no high-speed train service from Carmarthen to London.
There is no night train service from Carmarthen to London.
Yes, you can take the train from Carmarthen to London.
To get from Carmarthen to London, you can choose from several travel options including train and coach.
popular train stations
Important Stations and Airports in Carmarthen and London
Carmarthen
London
The major train station for departures in Carmarthen is Carmarthen. Find all the information you need to know about services, amenities and connections at Carmarthen for your trip from Carmarthen to London.
Amenities at train station
Shopping
Parking
Dining
Accessibility
WC
Hotel
Lounge
Lost and Found Office
Ticket Office
Bike Parking
Bike Rentalinformation
Ticket Office Hours
- Opening hours: Monday - Friday 06:45 - 18:00
Shopping
- Type of shops available: News agent
Parking
- Car Park: Station Car Park
Accessibility
- 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
WC
- 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
Bike Parking
- Storage sheltered: No
- Storage location: On Platform 1
- Storage CCTV: Yes
Public transport options for Carmarthen
- Location for Rail Replacement Services: Wait at the bus stop opposite the station entrance
The major train station for arrivals in London is Acton Main Line. Find all the information you need to know about services, amenities and connections at Acton Main Line for your journey to London from Carmarthen.
Amenities at train station
ParkingDiningAccessibilityWCHotelLost and Found OfficeTicket OfficeBike Parking
Information Deskinformation
Ticket Office Hours
- Opening hours: Monday - Friday 06:40 - 10:40 Saturday 08:00 - 15:15 Sunday Closed
Distance to city center
9 kmParking
- Car Park: No
Accessibility
- Staff help available: Yes
- Step free access coverage: Yes
- Step free access note: Accessibility Category A. This station has step-free access to all platforms. Staff ramp assistance is always available. Accessible seating is available on platforms 3&4.
- Accessible ticket machines: There are accessible ticket machines at this station
- Accessible ticket machines note: Accessible ticket machines are located in the stations ticket hall.
- Accessible toilets: Yes
- Ramp for train access: Yes
- Wheelchairs available: Yes
- Wheelchairs available open hours: Staff are available to assist from the first to last train.
- Impaired mobility set down / pick up points available: No
WC
- Toilets Location: On the paid side of the barrier in the stations ticket hall.
- National key toilets: Yes
- National key toilets location: An accessible toilet is located in the ticket hall on the paid side of the barrier. This toilet is operated with a radar key.
- Baby changing facilities: No
Information Desk
- Information available from staff: Yes - from help point,Yes - from ticket office
- Helpline Contact: 0343 222 1234
- Passenger Information Systems: Departure screens, Announcements
Public transport options for Acton Main Line
- Location for Rail Replacement Services: No rail replacement bus services operate from this station.
Amenities at train station
ShoppingParkingDining
ATM
TaxisAccessibilityWCHotelLoungeLost and Found OfficeTicket OfficeBike ParkingBike Rentalinformation
Ticket Office Hours
- Opening hours: Monday - Friday 06:15 - 21:30 Saturday 06:15 - 21:30 Sunday 07:15 - 21:30
Distance to city center
5 kmParking
- Car Park: No
Accessibility
- Staff help available: Yes
- Step free access coverage: Yes
- Step free access note: Step free access available through Brighton Yard entrance to all platforms via lifts. Step free access available through Grant Road entrance to platform 1 and 2 via lifts
- Accessible ticket machines: There are accessible ticket machines at this station
- Accessible ticket machines note: All South Western Railway ticket machines are able to sell tickets with Disabled Persons Railcard discounts. All machines are accessible, however the station may not be so please check the station access note for further details
- Accessible toilets: Yes
- Ramp for train access: Yes
- Wheelchairs available: Yes
- Impaired mobility set down / pick up points available: Yes
WC
- Toilets Location: The toilets are located next to the Brighton Yard entrance gateline. The National key toilets are located next to the Brighton Yard entrance gateline; these toilets are operated by a radar key. A radar key is available from station staff upon request. A 'National Key Scheme' key [RADAR] can be purchased by contacting the following. Address: 12 City Forum, 250 City Road, London, EC1V 8AF. Tel: 020 7250 3222. Minicom: 020 7250 4119. Fax: 020 7250 0212. Email: [email protected]
- National key toilets: Yes
- Baby changing facilities: Yes
Lounge
- Waiting rooms location: Waiting rooms are on platforms 1, 9/10 and 13/14
Bike Parking
- Storage sheltered: Yes
- Storage location: Brighton Yard side of the station.
- Storage CCTV: Yes
Public transport options for Clapham Junction
- Location for Rail Replacement Services: Through services: Grant Road Bus Stop A All arrivals (except via Wandsworth Town): St Johns Hill Bus Stop C Arrivals via Wandsworth Town: Grant Road Bus Stop R
Amenities at train station
ParkingDiningAccessibilityHotelLost and Found OfficeTicket OfficeBike ParkingInformation Deskinformation
Ticket Office Hours
- Opening hours: Monday - Friday 06:40 - 17:25 Saturday Closed Sunday Closed Ticket office managed by Southeastern
Distance to city center
7 kmParking
- Car Park: No
Accessibility
- Staff help available: Yes
- Step free access coverage: Yes
- Step free access note: Category A. This station has step free access to all platforms - Access to all platforms and interchange via lifts and stairs from booking hall.
- Accessible public telephones: Public telephones are not wheelchair accessible
- Accessible taxis: Accessible taxis are available to book
- Accessible ticket machines: There are accessible ticket machines at this station
- Accessible ticket machines note: booking hall
- Ramp for train access: Yes
- Wheelchairs available: No
- Impaired mobility set down / pick up points available: No
Bike Parking
- Storage sheltered: Yes
- Storage CCTV: No
Information Desk
- Information available from staff: Yes - from help point
- Helpline Contact: 0345 322 7021 or Text relay 18001 0345 322 7021 Freephone 0800 783 4524 or Text Relay 18001 0800 783 4524
- Passenger Information Systems: Departure screens, Announcements
Public transport options for Deptford
- Location for Rail Replacement Services: Towards New Cross or London Bridge: Stop T, Deptford Bridge DLR station Towards Charlton: Stop Y, Deptford Bridge DLR station.
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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