4.9
4.6
Travel Information
Compare train and bus for Carmarthen to Cardiff
Omio recommends booking the train as it is the most popular option from Carmarthen to Cardiff 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 24m. 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 €16.
Distance: 54 miles (88 km)
Compare train with
Most popular Train | Bus | Driving |
|---|---|---|
€16 Average price | €12 Average price Cheapest | €20 Average price (fuel + tolls) |
2h 24m Average total duration Fastest 1h 54m Onboard + 30m Additional time* | 2h 55m Average total duration 2h 25m Onboard + 30m Additional time* | 1h 21m 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 Carmarthen to Cardiff:
A bus is €7 less than a train for this route with tickets for a train from Carmarthen to Cardiff costing on average €21.
Other travel options to Cardiff take longer:
Bus takes on average 2h 45m.
Tickets start at around €21 compared to roughly €20 in fuel and tolls — a saving of about €-1.22. The journey takes 1h 53m versus 1h 21m 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 Carmarthen to Cardiff
How to get from Carmarthen to Cardiff by train, bus or flight.
Our recommendation
The best way to travel from Carmarthen to Cardiff is by taking a bus because it’s the best combination of price and speed.
- NX1129:50 AM2h25Carmarthen, Lammas Street (Rose and Crown Hotel)12:15 PMCardiff, Sophia Gardens€131One-way0 transfers
Cheapest
- NX1129:50 AM2h25Carmarthen, Lammas Street (Rose and Crown Hotel)12:15 PMCardiff, Sophia Gardens€131One-way0 transfers
Fastest
- G38325+
W354421:34 PM1h41Carmarthen station (CMN)3:15 PMCardiff Central (CDF)€331One-way1 transfer
Other options
- G383251:34 PM1h52Carmarthen station (CMN)3:26 PMCardiff Central (CDF)€201One-way0 transfers
- G3897610:05 AM2h20Carmarthen station (CMN)12:25 PMCardiff Central (CDF)€201One-way0 transfers
- G39456 · G3898010:54 AM2h38Carmarthen station (CMN)1:32 PMCardiff Central (CDF)€201One-way1 transfer
- NX508 · NX20111:10 AM3h20Carmarthen, Lammas Street (Rose and Crown Hotel)2:30 PMCardiff, Sophia Gardens€161One-way1 transfer
Find all the dates and times for this journey by train, bus, flight, and ferry .
Compare prices and tickets Prices for trains, buses and flights
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.
Sep 20
Sep 21
Sep 22
Sep 23
Sep 24
Sep 25
Sep 26
More than 1,000 travel companies trust us to sell their tickets all in one place.
FAQs: Travel from Carmarthen to Cardiff
Travel to Cardiff 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 Carmarthen to Cardiff.
This is compared to other travel options from Carmarthen to Cardiff:
A bus is €7 less than a train for this route with tickets for a train from Carmarthen to Cardiff costing on average €21.
Other travel options to Cardiff take longer:
Bus takes on average 2h 45m.
- Around 10 trains per day.
- Around 2 buses per day.
However, we recommend checking specific travel dates for your route between Carmarthen and Cardiff as scheduled services by train and bus can vary by season or day of the week.
- Trains mostly depart from Carmarthen station (CMN) and arrive in Cardiff Central (CDF).
- Buses mostly depart from Carmarthen, Lammas Street (Rose and Crown Hotel) and arrive in Cardiff, Sophia Gardens.
- Travel with Transport for Wales, Great Western Railway to go to Cardiff by train.
- Travel with National Express to go to Cardiff by bus.
- 7 direct trains per day with Transport for Wales, Great Western Railway.
- 1 direct buses per day with National Express.
Travelling from Carmarthen to Cardiff: related information
Here are some other resources that might have the information you need
Travel to popular destinations by train, bus or flight
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.
