- Must visit
Carmarthenshire Museum
The county museum in a former bishop’s palace, covering Roman finds, local history and changing displays in an atmospheric setting.
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Travel Information
Compare train for Southampton to Carmarthen
Omio recommends booking the train as it is the most popular option from Southampton to Carmarthen among Omio's users. If you are prioritising price, take the train, with an average ticket price of £149 For those with little time, consider booking a train, which has an average total journey time of 4h 52m. Average ticket prices depend on the travel mode: a train costs an average of £149, while a train costs an average of £149.
Distance: 227 km
Compare train with
Most popular Train | Driving |
|---|---|
£149 Average Price Cheapest | £48 Average Price (fuel + tolls) |
4h 52m Average total duration Fastest 4h 22m Onboard + 30m Additional time* | 3h 29m Average total duration (door-to-door) |
 Most popular train company | Your own car or car rental |
Direct Options | Direct Options |
The cheapest way to travel from Southampton to Carmarthen is a train with an average price of £149.
The fastest way to travel from Southampton to Carmarthen is by train with an average journey time of 4h 22m.
Other travel options to Carmarthen take longer:
Coach takes on average 8h 30m.
Yes, you can take a train between Southampton and Carmarthen.
Take the train. It's the cheaper option, and the extra time on board is usually more relaxing than driving it.
Tickets start at around £149 compared to roughly £48 in fuel and tolls — a saving of about £-101.32. The journey takes 4h 22m versus 3h 29m by car, so you'll arrive a bit later, but you can work, read, or sleep along the way rather than spending the time behind the wheel. You'll also save the hassle of parking at the other end.
Driving is worth it if you're on a tight schedule, travelling as a group, or want to stop somewhere en route.
Compare prices and tickets Southampton to Carmarthen by train
Compare train 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 Southampton to Carmarthen trains with Omio?
Great Western Railway as well as Cross Country or Great Western Railway (GWR) offer trains services from Southampton to Carmarthen.
Omio is an official ticket reseller for all your travel options from Southampton to Carmarthen.
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 Cross Country or Great Western Railway (GWR) to find the best option for your trip from Southampton 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.
Journey information
Overview: Train from Southampton to Carmarthen
United KingdomUnited Kingdom
Trains from Southampton to Carmarthen run on average 7 times per day, taking around 4h 22m. Cheap train tickets for this journey start at £119 if you book in advance.
The earliest train runs at 04:00, the last at 19:30. The fastest train covers the 227 km distance in 4h 6m.
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
Distance 227 km |
Average train duration 4h 22m |
Cheapest ticket price £119 |
Trains per day 7 |
Fastest train 4h 6m |
First train 4:00 |
Last train 19:30 |
Cheapest Month Mar |
Cheapest Day Tue |
High Season Jan - Mar |
Low Season Jul - Sept |
Busiest Day Thu |
Least Busy Day Thu |
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
Train companies: Great Western Railway, Cross Country, Great Western Railway (GWR) from Southampton to Carmarthen trainsGreat Western Railway, Cross Country, Great Western Railway (GWR) trains will get you between Southampton and Carmarthen from £119. With over 1000 travel companies on Omio, you can find the best train times and tickets for your trip.
Great Western Railway
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 Great Western Railway Duration
4h 44m
Cheapest Great Western Railway Price
£71
Great Western Railway frequency
7 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
Cross Country
Luggage & cancellation policy
Average Cross Country Duration
4h 6m
Cheapest Cross Country Price
£200
Cross Country frequency
4 a day
Great Western Railway (GWR)
Luggage & cancellation policy
Average Great Western Railway (GWR) Duration
4h 44m
Cheapest Great Western Railway (GWR) Price
£119
Great Western Railway (GWR) frequency
8 a day
Complete guide to Carmarthen
Things to do in Carmarthen
Discover the best of Carmarthen — top attractions, local food, transport tips, budget advice, and currency essentials. Plan your perfect Carmarthen trip today.
- Recommended
Carmarthen Roman Amphitheatre Museum
Small museum on the old Roman amphitheatre site, introducing Roman Moridunum and the archaeology of early Carmarthen.
- Recommended
Dylan Thomas Boathouse and Writing Shed
Museum telling the story of Dylan Thomas and his family in a restored chapel, with exhibits on writing, broadcasting and local roots.
- Must visit
Carmarthen Park
Large public park with formal gardens, play areas, riverside walks and a hilltop monument, ideal for a relaxed break near the centre.
- Recommended
King Street
Historic market quarter with independent shops, old arcades and everyday town life, good for browsing and seeing central Carmarthen on foot.
- Recommended
Parc y Belyn
Riverside green space and woodland paths beside the Towy, popular for walking, wildlife watching and easy access from the town centre.
- Gluten-free
Cawl
Traditional Welsh broth made with lamb or beef, root vegetables and leeks. A staple of rural west Wales, valued for its hearty, slow-cooked flavour.
- Vegetarian
Bara Brith
A rich fruit loaf or tea bread with dried fruit and spices, commonly sliced and served with butter. Long associated with Welsh baking and teatime.
- Vegetarian
Welsh Cakes
Small oatcakes cooked on a bakestone, often split and toasted with butter or cheese. A traditional Welsh breakfast and teatime bread.
The Warren
Popular casual restaurant known for burgers, brunch and modern comfort food in a lively town-centre setting.
The Corries
Stylish restaurant and bar serving modern British dishes, cocktails and varied seasonal plates in an elegant atmosphere.
The Old Moathouse
Well-known traditional pub with classic Welsh and British meals, local ales and a relaxed historic setting.
Pound sterling (£)
Moderate for the UK. Hotels and dining are usually cheaper than in Cardiff or London, while local transport and everyday costs stay fairly manageable for visitors.
Average meal costs
- Budget
- £8-12 for a budget meal.
- Mid-range
- £18-30 per person for a mid-range meal.
- Fine dining
- £45+ per person for fine dining.
- Coffee
- £2.80-4 for a coffee.
Tipping culture
Tipping is modest. In restaurants, 10-12.5% is appreciated if service is not included. Round up taxi fares, and tipping in cafés is optional.
TrawsCymru
Get the appOfficial public transport app
Prices
- Single ticket
- £2.00
- Day pass
- £8.00
To the city centre
Carmarthen Railway Station, Carmarthen -> Carmarthen Bus Station, Carmarthen
- Distance
- 1 km
- Travel time
- 15 min
- Most local buses in Carmarthenshire have a standard adult single fare of £2.00. Check route-specific operator pages before longer trips.
- TrawsCymru says some buses accept contactless payment and tickets can also be bought in the TrawsCymru app. Keep cash as a backup on smaller local services.
FAQs: Southampton to Carmarthen train
Find answers to the most common questions about traveling from Southampton 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.
The cost of a train ticket from Southampton to Carmarthen can vary. The cheapest tickets are usually available from £119, while the average price tends to be around £149.
The train journey from Southampton to Carmarthen covers a distance of 227 km and takes approximately 4h 6m. Trains run 7 per day.
The train distance from Southampton to Carmarthen is 227 km.
The first train from Southampton to Carmarthen leaves at 4:00.
The last train from Southampton to Carmarthen departs at 19:30.
Trains from Southampton to Carmarthen run approximately 7 times per day.
Currently, there is no high-speed train service from Southampton to Carmarthen.
Unfortunately, there is no direct train service currently available from Southampton to Carmarthen.
To travel from Southampton to Carmarthen, you can take a train.
There is no night train service from Southampton to Carmarthen.
The train station in Southampton that goes to Carmarthen is Southampton Central (SOU), and it arrives at Carmarthen station (CMN).
The cheapest way to get from Southampton to Carmarthen is by train, costing approximately £119.
Booking trains from Southampton to Carmarthen in advance is advisable, especially during peak travel seasons or for long journeys, to ensure availability and secure better fares.
The train journey from Southampton to Carmarthen offers scenic views, especially as it travels through the picturesque countryside of South Wales, including lush valleys and rolling hills.
A day trip from Southampton to Carmarthen is not feasible as the journey duration is 4h 6m. However, there are 7 trains per day covering a distance of 227 km.
Spending two to three days in Carmarthen allows visitors to explore its historic sites, enjoy local markets, and take in the surrounding natural beauty, such as the Brecon Beacons and coastal areas.
Yes, you can take the train from Southampton to Carmarthen.
popular train stations
Important Stations and Airports in Southampton and Carmarthen
Most Southampton to Carmarthen trains use the Southampton Central to Carmarthen station pair. Use this guide to compare Southampton and Carmarthen train stations on this route, check city-centre transport, alongside checking practicalities like train station facilities and services.
Departure train stations in Southampton
Arrival train stations in Carmarthen
Which Southampton station do trains to Carmarthen leave from?
Trains from Southampton to Carmarthen leave from Southampton Central. The station is 1 km from Southampton city centre at Southampton Central station, Blechynden Terrace, Southampton, Hampshire, SO15 1AL.
Southampton CentralSouthampton Central station, Blechynden Terrace, Southampton, Hampshire, SO15 1AL+44 345 600 0650
City-centre transport
Getting to Southampton Central from Southampton city centre
BusX4, X5 · 5m · £2 · every ~20 min
Southampton Central train station facilities and services
Southampton Central has practical services for this route, including Wifi, Shopping, Parking, Dining, ATM, Taxis, Accessibility, WC, Lounge, Lost and Found Office, Ticket Office, Bike Parking, Bike Rental and Car Rental.
Food and drink
Food and drink options are available at Southampton Central.
Wi-Fi and ATMs
Wi-Fi is available at Southampton Central. ATMs are available at Southampton Central.
Tickets and information
Ticket office support is available at Southampton Central.
Luggage and lost property
Lost and found is available at the station.
Parking, taxis and toilets
Available at Southampton Central: Parking, Taxis, WC.
Bike and car services
Available at Southampton Central: Bike Parking, Bike Rental, Car Rental.
Accessibility
Accessibility facilities are available at Southampton Central: Staff help available: Yes, Step free access coverage: Yes, Step free access note: Step-free category A Station - This station has step-free access to all platforms. Please be aware that this station has no tactile paving on the platform edge, 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.
Which Carmarthen station do trains from Southampton arrive at?
Trains from Southampton to Carmarthen arrive at Carmarthen. Carmarthen is from Carmarthen city centre.
CarmarthenCarmarthen station, Station Road, Carmarthen, Carmarthenshire, SA31 2BE+44 3450507080
City-centre transport
Getting to Carmarthen from Carmarthen city centre
BusT1x, T1, T1a · 3m · £0.90 · every ~4 min
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.
Most popular train connections from Southampton
More options for your journey from Southampton to Carmarthen
Here are some other resources that might have the information you need
Most popular trains to and from Carmarthen and Southampton
Most popular train connections to Carmarthen
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