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 prices starting from $13. For those with little time consider booking a train which can get you there in 1h 53m. In case you are seeking to minimise your carbon footprint the train is your best bet as it emits only 0.0 - 0.1kg. The ticket price range depends on the travel mode: a bus costs an average of $13, and a train costs an average of $8.
Distance: 54 miles (88 km)
Compare train with
Most popular Train | Bus | Driving |
|---|---|---|
$19 Average price | $15 Average price Cheapest | $24 Average price (fuel + tolls) |
2h 23m Average total duration Fastest 1h 53m Onboard + 30m Additional time* | 2h 48m Average total duration 2h 18m 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 $4 (€3) less than a train for this route with tickets for a train from Carmarthen to Cardiff costing on average $19 (€16).
Other travel options to Cardiff take longer:
Bus takes on average 2h 18m.
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.
NX1128:40 AM2h30Carmarthen, Lammas Street (Rose and Crown Hotel)11:10 AMCardiff, Sophia Gardens$151One-way0 transfers
Cheapest
NX1128:40 AM2h30Carmarthen, Lammas Street (Rose and Crown Hotel)11:10 AMCardiff, Sophia Gardens$151One-way0 transfers
Fastest
G38977+
W3543810:34 AM1h42Carmarthen station (CMN)12:16 PMCardiff Central (CDF)$391One-way1 transfer
Other options
G389698:35 AM1h51Carmarthen station (CMN)10:26 AMCardiff Central (CDF)$211One-way0 transfers
G3897710:34 AM1h52Carmarthen station (CMN)12:26 PMCardiff Central (CDF)$251One-way0 transfers
G39450 · G389749:34 AM1h56Carmarthen station (CMN)11:30 AMCardiff Central (CDF)$311One-way1 transfer
NX508 · NX11110:55 AM2h40Carmarthen, Lammas Street (Rose and Crown Hotel)1:35 PMCardiff, Sophia Gardens$221One-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.
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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 $4 (€3) less than a train for this route with tickets for a train from Carmarthen to Cardiff costing on average $19 (€16).
Other travel options to Cardiff take longer:
Bus takes on average 2h 18m.
- Around 7 trains per day.
- Around 3 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 National Express, Mid Wales Travel to go to Cardiff by bus.
- Travel with Transport for Wales, Great Western Railway, Great Western Railway (GWR), Transport for Wales to go to Cardiff by train.
- 1 direct buses per day with National Express, Mid Wales Travel.
- 5 direct trains per day with Great Western Railway, Great Western Railway (GWR), Transport for Wales.
Travelling from Carmarthen to Cardiff: related information
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