Travel Information
Compare bus and train 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 52m. 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 $9.
Distance: 54 miles (88 km)
Compare train with
Most popular Train | Bus |
|---|---|
$17 Average price | $16 Average price Cheapest |
2h 22m Average total duration Fastest 1h 52m Onboard + 30m Additional time* | 2h 46m Average total duration 2h 16m Onboard + 30m Additional time* |
0.0 - 0.1kg CO2 emissions Lowest | 0.1 - 0.2kg CO2 emissions |
![]() Most popular train company | ![]() Most popular bus company |
Direct Options | Direct Options |
Additional time: Average total travel duration to departure point, security checks and transfers.
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.
8:40 AM2h30Carmarthen11:10 AMCardiff$161One-way0 transfers
Cheapest
8:40 AM2h30Carmarthen11:10 AMCardiff$161One-way0 transfers
Fastest
8:40 AM2h30Carmarthen11:10 AMCardiff$161One-way0 transfers
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
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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 train is $4 (€3) less than a bus for this route with tickets for a bus from Carmarthen to Cardiff costing on average $13 (€11).
Other travel options to Cardiff take longer:
Bus takes on average 2h 30m.
- 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 bus and train can vary by season or day of the week.
- Buses mostly depart from Carmarthen, Lammas Street (Rose and Crown Hotel) and arrive in Cardiff, Sophia Gardens.
- Trains mostly depart from Carmarthen station (CMN) and arrive in Cardiff Central (CDF).
- Travel with Transport for Wales, Great Western Railway, first_great_western, Transport for Wales to go to Cardiff by train.
- Travel with National Express, Mid Wales Travel to go to Cardiff by bus.
- 4 direct trains per day with Great Western Railway, first_great_western, Transport for Wales.
- 1 direct buses per day with Mid Wales Travel.
Travelling from Carmarthen to Cardiff: related information
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