4.9
4.6
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 coach, with an average ticket price of £43 For those with little time, consider booking a train, which has an average total journey time of 4h 51m. Average ticket prices depend on the travel mode: a coach costs an average of £43, while a train costs an average of £90.
Distance: 227 km
Most popular Train | Coach | Driving |
|---|---|---|
£90 Average Price | £43 Average Price Cheapest | £47 Average Price (fuel + tolls) |
4h 51m Average total duration Fastest 4h 21m Onboard + 30m Additional time* | 9h 13m Average total duration 8h 43m Onboard + 30m Additional time* | 3h 29m Average total duration (door-to-door) |
 Most popular train company |  Most popular bus company | Your own car or car rental |
Direct Options | Direct Options | Direct Options |
Compare the available ways to get from Southampton to Carmarthen, with the key details around price, speed, convenience, and direct service.
This is compared to other travel options from Southampton to Carmarthen:
A coach is £47 less than a train for this route with tickets for a train from Southampton to Carmarthen costing on average £90.
Other travel options to Carmarthen take longer:
Coach takes on average 9h 13m.
Tickets start at around £90 compared to roughly £47 in fuel and tolls — a saving of about -£42. The journey takes 4h 21m 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.
How to get to Carmarthen from Southampton by train, bus, flight or ferry.
The best way to travel from Southampton to Carmarthen is by taking a coach because it’s the best combination of price and speed.
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Find all the dates and times for this journey by train, bus, flight, and ferry .
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.
The most popular day trips by train from Carmarthen are Cardiff, Swansea, Llanelli, Tenby and Pembroke Dock. Find out what you can do in these day trip destinations and how to book your train from Carmarthen on Omio.
Cardiff is a compact capital known for Welsh culture, Cardiff Castle and the energy of the Principality Stadium. Victorian arcades, civic landmarks and Cardiff Bay give it a character that feels both historic and modern.
Swansea is known for its sweeping bay, maritime past and connection to Dylan Thomas. The city mixes a practical urban centre with a waterfront feel and quick access to the Gower coast.
Llanelli is a coastal town in Carmarthenshire known for rugby, Welsh language culture and its tinplate heritage. Beside the Loughor Estuary, it has a practical, down-to-earth feel with access to the Millennium Coastal Park.
Tenby is a colourful harbour town on the Pembrokeshire coast with medieval walls and broad sandy beaches. Known as one of Wales's best-loved seaside resorts, it combines narrow streets, sea views and a relaxed holiday feel.
Pembroke Dock is known for its naval dockyard past and its setting on the Milford Haven Waterway. The town has a working maritime feel, with military history nearby and easy access to the wider Pembrokeshire coast.
Travel to Carmarthen easily. Whether you want fast, cheap or something entirely different, our travel experts have collected everything you need to know so you can find the best option from Southampton to Carmarthen.
This is compared to other travel options from Southampton to Carmarthen:
A coach is £47 less than a train for this route with tickets for a train from Southampton to Carmarthen costing on average £90.
Other travel options to Carmarthen take longer:
Coach takes on average 9h 13m.
However, we recommend checking specific travel dates for your route between Southampton and Carmarthen as scheduled services by train can vary by season or day of the week.
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