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?
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 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.
Journey information
Overview: Train from Southampton to Carmarthen
Trains from Southampton to Carmarthen run on average 8 times per day, taking around 4h 32m. Cheap train tickets for this journey start at £120 if you book in advance.
The earliest train runs at 03:35, the last at 19:30. The fastest train covers the 227 km distance in 4h 6m.
Distance 227 km |
Average train duration 4h 32m |
Cheapest ticket price £120 |
Trains per day 8 |
Fastest train 4h 6m |
First train 03:35 |
Last train 19:30 |
Train companies: Great Western Rail, Cross Country, first_great_western from Southampton to Carmarthen trainsGreat Western Rail, Cross Country, first_great_western trains will get you between Southampton and Carmarthen from £120. With over 1000 travel companies on Omio, you can find the best train times and tickets for your trip.
Great Western Rail
Cross Country
first_great_western
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.

popular train stations
Important Stations and Airports in Southampton and Carmarthen
- Opening hours: Monday - Friday 05:40 - 20:45 Saturday 06:00 - 20:45 Sunday 06:30 - 20:45
- Car Park: Premium-downside
- Taxi: Yes outside Platform 4 exit
- 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
- 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
- Waiting rooms location: All platforms. Waiting rooms are heated and seating complies with Code of Practice.
- 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
- 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)
- 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
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