Travel Information
Compare bus and train for Cardiff to Carmarthen
Omio recommends booking the train as it is the most popular option from Cardiff to Carmarthen among Omio's users. If you are prioritising price, take the bus, with an average ticket price of €12 For those with little time, consider booking a train, which has an average total journey time of 2h 22m. If you are seeking to minimise your carbon footprint, the train is your best option, with estimated CO2 emissions of 0.0 - 0.1kg. Average ticket prices depend on the travel mode: a bus costs an average of €12, while a train costs an average of €12.
Distance: 54 miles (88 km)
Compare train with
Most popular Train | Bus | Driving |
|---|---|---|
€12 Average price | €12 Average price Cheapest | €20 Average price (fuel + tolls) |
2h 22m Average total duration Fastest 1h 52m Onboard + 30m Additional time* | 2h 30m Average total duration 2h 0m Onboard + 30m Additional time* | 1h 20m Average total duration (door-to-door) |
0.0 - 0.1kg CO2 emissions Lowest | 0.1 - 0.2kg CO2 emissions | - CO2 emissions |
![]() Most popular train company | ![]() Most popular bus company | Your own car or car rental |
Direct Options | Direct Options | Direct Options |
Additional time: Average total travel duration to departure point, security checks and transfers.
This is compared to other travel options from Cardiff to Carmarthen:
A bus is €6 less than a train for this route with tickets for a train from Cardiff to Carmarthen costing on average €20.
Other travel options to Carmarthen take longer:
Bus takes on average 2h 36m.
Tickets start at around €20 compared to roughly €20 in fuel and tolls — a saving of about €0.39. The journey takes 1h 51m versus 1h 20m 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.
Travel optionsfrom Cardiff to Carmarthen
How to get from Cardiff to Carmarthen by train, bus or flight.
Our recommendation
The best way to travel from Cardiff to Carmarthen is by taking a train because it’s the best combination of price and speed.
G388441:51 PM2h23Cardiff Central (CDF)4:14 PMCarmarthen station (CMN)€121One-way0 transfers
Cheapest
G388441:51 PM2h23Cardiff Central (CDF)4:14 PMCarmarthen station (CMN)€121One-way0 transfers
Fastest
G3828211:51 AM1h54Cardiff Central (CDF)1:45 PMCarmarthen station (CMN)€141One-way0 transfers
Other options
G38276 · V130259:52 AM3h15Cardiff Central (CDF)1:07 PMCarmarthen station (CMN)€141One-way1 transfer
G38297 · G384668:08 AM3h17Cardiff Central (CDF)11:25 AMCarmarthen station (CMN)€141One-way1 transfer
G389183:56 PM2h21Cardiff Central (CDF)6:17 PMCarmarthen station (CMN)€161One-way0 transfers
NX1124:15 PM2h05Cardiff, Sophia Gardens6:20 PMCarmarthen, Lammas Street (Rose and Crown Hotel)€131One-way0 transfers
NX201 · NX5082:35 PM3h10Cardiff, Sophia Gardens5:45 PMCarmarthen, Lammas Street (Rose and Crown Hotel)€151One-way1 transfer
Find all the dates and times for this journey by train, bus, flight, and ferry .
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FAQs: Travel from Cardiff to Carmarthen
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 Cardiff to Carmarthen.

This is compared to other travel options from Cardiff to Carmarthen:
A bus is €6 less than a train for this route with tickets for a train from Cardiff to Carmarthen costing on average €20.
Other travel options to Carmarthen take longer:
Bus takes on average 2h 36m.
- Around 10 trains per day.
- Around 2 buses per day.
However, we recommend checking specific travel dates for your route between Cardiff and Carmarthen as scheduled services by bus and train can vary by season or day of the week.
- Trains mostly depart from Cardiff Central (CDF) and arrive in Carmarthen station (CMN).
- Buses mostly depart from Cardiff, Sophia Gardens and arrive in Carmarthen, Lammas Street (Rose and Crown Hotel).
- Travel with National Express, Mid Wales Travel to go to Carmarthen by bus.
- Travel with Transport for Wales, Great Western Railway, Great Western Railway (GWR), Transport for Wales to go to Carmarthen by train.
- 1 direct buses per day with National Express, Mid Wales Travel.
- 9 direct trains per day with Transport for Wales, Great Western Railway, Great Western Railway (GWR), Transport for Wales.
Travelling from Cardiff to Carmarthen: related information
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