2,000+ travel companies
2,000+ travel companies
Scan to get our free app
Use our app to get live travel updates and book mobile tickets for trains, buses, flights, and ferries.
App Store
4.942K ratings
Google Play
4.6136K reviews
Travel Information
Compare train and bus 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 prices starting from $164. For those with little time consider booking a train which can get you there in 4h 32m. The ticket price range depends on the travel mode: a train costs an average of $164, and a train costs an average of $164.
Distance: 141 miles (227 km)
Compare train with
Most popular Train | Driving |
|---|---|
$208 Average price Cheapest | $66 Average price (fuel + tolls) |
5h 2m Average total duration Fastest 4h 32m 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 $208 (€166).
The fastest way to travel from Southampton to Carmarthen is by train with an average journey time of 4h 32m.
Other travel options to Carmarthen take longer:
Bus takes on average 8h 5m.
It's helpful to compare your options as there are 2 ways to travel between Southampton and Carmarthen including taking a train and bus.
We recommend using the train as it is the most popular way to get from Southampton to Carmarthen among Omio's users.
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 $208 (€166) compared to roughly $66 (€53) in fuel and tolls — a saving of about $-141.92 (€-113.42). The journey takes 4h 32m 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.
Live departures
Southampton to Carmarthen train times
The table below shows live departures for Southampton to Carmarthen trains for today, Thursday, May 7. You can also manually refresh the results below to see updated train journeys.
Last updated at
| Provider | Departs | Duration | Arrives | Transfers | Tickets |
|---|---|---|---|---|---|
 | 6:16 AM Southampton | 4h24 | 10:40 AM Carmarthen | 1 transfer | |
.png) | 6:47 AM Southampton | 5h01 | 11:48 AM Carmarthen | 1 transfer | |
This is the last train of the day. | |||||
Find all the dates and times for this journey
Compare prices and tickets Southampton 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.
Fri
May 08
May 08
Sat
May 09
May 09
Sun
May 10
May 10
Mon
May 11
May 11
Tue
May 12
May 12
Wed
May 13
May 13
Thu
May 14
May 14
Why should you book Southampton to Carmarthen trains with Omio?
Great Western Railway as well as Cross Country or first_great_western 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 first_great_western 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.
- 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 Southampton 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 Southampton to Carmarthen.
Journey information
Overview: Train from Southampton to Carmarthen
United KingdomUnited Kingdom
Trains from Southampton to Carmarthen run on average 8 times per day, taking around 4h 32m. Cheap train tickets for this journey start at $164 (€131) if you book in advance.
The earliest train runs at 03:35, the last at 19:30. The fastest train covers the 141 miles (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 141 miles (227 km) |
Average train duration 4h 32m |
Cheapest ticket price $164 (€131) |
Trains per day 8 |
Fastest train 4h 6m |
First train 3:35 AM |
Last train 7:30 PM |
Cheapest Month Aug |
Cheapest Day Thu |
High Season Jan - Mar |
Low Season Apr - Jun |
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, first_great_western from Southampton to Carmarthen trainsGreat Western Railway, Cross Country, first_great_western trains will get you between Southampton and Carmarthen from $164 (€131). 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 Duration
5h 2m
Cheapest Price
$73 (€58)
Great Western Railway frequency
8 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 Duration
4h 6m
Cheapest Price
$280 (€224)
Cross Country frequency
4 a day
first_great_western
Luggage & cancellation policy
Average Duration
4h 37m
Cheapest Price
$164 (€131)
first_great_western frequency
8 a day
FAQs: Trains from Southampton to Carmarthen
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.
Train ticket prices from Southampton to Carmarthen can vary. The cheapest ticket starts at $164 (€131), while the average price is around $208 (€166).
The train from Southampton to Carmarthen takes 4h 6m and runs 8 per day.
The first train from Southampton to Carmarthen leaves at 3:35 AM.
The distance by train from Southampton to Carmarthen is 141 miles (227 km).
The last train from Southampton to Carmarthen leaves at 7:30 PM.
There is no high speed train available from Southampton to Carmarthen.
There is no direct train service currently available from Southampton to Carmarthen.
Unfortunately, there is no night train available from Southampton to Carmarthen.
The train station in Southampton that goes to Carmarthen is Southampton Central (SOU), which connects to Carmarthen station (CMN).
The cheapest way to get from Southampton to Carmarthen is by train, with a cost of around $164 (€131).
The train journey from Southampton to Carmarthen offers scenic views, particularly as it travels through the picturesque landscapes of South Wales, including rolling hills and charming countryside vistas.
A day trip from Southampton to Carmarthen is not feasible as the journey takes 4h 6m. The distance is 141 miles (227 km). Trains operate 7 times per day.
To fully experience Carmarthen, a visit of 2 to 3 days is ideal, allowing time to explore its historic sites, local markets, and surrounding natural beauty.
Yes, you can take the train from Southampton to Carmarthen.
Since neither Southampton nor Carmarthen are in the Schengen Area, passport requirements depend on the specific immigration rules of United Kingdom and United Kingdom. Entry and visa requirements can be subject to change. For the latest information, check with your destination's embassy or consulate.
Popular day trips by train from Carmarthen include Swansea, Burry Port, Cardiff, Llanelli, Haverfordwest.
We recommend using the train as it is the most popular way to get from Southampton to Carmarthen among Omio's users.
Items not allowed on trains typically include hazardous materials such as explosives, flammable liquids, corrosive substances, and illegal drugs. Additionally, large or bulky items that may obstruct aisles or emergency exits, as well as pets without proper carriers, may be restricted. Specific prohibited items can vary by train operator and region, so please check the rules for your particular journey.
Yes, rail passes such as the BritRail Pass are valid on most trains within the United Kingdom, offering unlimited travel on participating train operators for a set period.
The currency used in the United Kingdom is the British Pound Sterling (GBP). For travelers, using a card is generally more convenient and widely accepted, especially in cities and for transportation tickets, though carrying some cash can be useful for small purchases or in rural areas.
In Carmarthen, travelers should be cautious of pickpocketing in crowded areas and watch out for unofficial taxi services that may overcharge. It's advisable to use licensed transportation and keep personal belongings secure, especially in busy markets and near transportation hubs. General awareness and adherence to local guidance help ensure a safe visit.
Pack lightweight, versatile clothing suitable for the destination's climate, and use secure, lockable luggage to protect belongings. Keep essential items like travel documents, medication, and valuables in a carry-on bag for easy access. Use packing organizers or cubes to maximize space and maintain order. Lastly, include a small first aid kit and personal hygiene items for added comfort during travel.
popular train stations
Popular train stations from Southampton to Carmarthen
Southampton
Carmarthen
The major train station for departures in Southampton is Southampton Central. Find all the information you need to know about services, amenities and connections at Southampton Central for your trip from Southampton to Carmarthen.
Amenities at train station
Wifi
Shopping
Parking
Dining
ATM
Taxis
Accessibility
WC
Lounge
Lost and Found Office
Ticket Office
Bike Parking
Bike Rental
Car Rentalinformation
Ticket Office Hours
- Opening hours: Monday - Friday 05:40 - 20:45 Saturday 06:00 - 20:45 Sunday 06:30 - 20:45
Parking
- Car Park: Premium-downside
Taxis
- Taxi: Yes outside Platform 4 exit
Accessibility
- 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
WC
- Toilets Location: The toilets are located in the Waiting Rooms on Platforms 1 and 4. The National key toilets are located on Platforms 1 and 4; 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
- Baby changing facilities location: Female toilets
Lounge
- Waiting rooms location: All platforms. Waiting rooms are heated and seating complies with Code of Practice.
Bike Parking
- Storage sheltered: Yes
- Storage location: Platform 1 - 200 spaces Platform 4 - 44 spaces Outside Platform 4 entrance - 4 spaces Outside Platform 1 entrance - A new bike hut with 140 two tier spaces
- Storage CCTV: Yes
Public transit options for Southampton Central
- Location for Rail Replacement Services: Rail replacement bus service goes from the north side (Blechynden Terrace) during engineering works. Overnight onward transport goes from the South side (West Quay side)
The major train station for arrivals in Carmarthen is Carmarthen. Find all the information you need to know about services, amenities and connections at Carmarthen for your journey to Carmarthen from Southampton.
Amenities at train station
ShoppingParkingDiningAccessibilityWC
HotelLoungeLost and Found OfficeTicket OfficeBike ParkingBike 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 transit options for Carmarthen
- Location for Rail Replacement Services: Wait at the bus stop opposite the station entrance
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
The Omio App Makes Travel Planning Easy
We’ll get you where you want to go. From live train updates to mobile tickets, our innovative app is the ideal way to plan and keep track of your travel.
