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 prices starting from $14. For those with little time consider booking a train which can get you there in 1h 50m. 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 $14, and a train costs an average of $8.
Distance: 54 miles (88 km)
Compare train with
Most popular Train | Bus | Driving |
|---|---|---|
$18 Average price | $16 Average price Cheapest | $25 Average price (fuel + tolls) |
2h 20m Average total duration Fastest 1h 50m Onboard + 30m Additional time* | 2h 31m Average total duration 2h 1m 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 $2 (€1) less than a train for this route with tickets for a train from Cardiff to Carmarthen costing on average $18 (€14).
Other travel options to Carmarthen take longer:
Bus takes on average 2h 1m.
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.
L650402:51 PM2h00Cardiff Central (CDF)4:51 PMCarmarthen station (CMN)$151One-way0 transfers
Cheapest
L650402:51 PM2h00Cardiff Central (CDF)4:51 PMCarmarthen station (CMN)$151One-way0 transfers
Fastest
P226303:38 PM1h43Cardiff Central (CDF)5:21 PMCarmarthen station (CMN)$391One-way0 transfers
Other options
L647262:47 PM1h45Cardiff Central (CDF)4:32 PMCarmarthen station (CMN)$171One-way0 transfers
L641154:06 PM1h53Cardiff Central (CDF)5:59 PMCarmarthen station (CMN)$201One-way0 transfers
P226261:37 PM1h52Cardiff Central (CDF)3:29 PMCarmarthen station (CMN)$391One-way0 transfers
NX1122:50 PM2h10Cardiff, Sophia Gardens5:00 PMCarmarthen, Lammas Street (Rose and Crown Hotel)$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
Compare bus and 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.
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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 $2 (€1) less than a train for this route with tickets for a train from Cardiff to Carmarthen costing on average $18 (€14).
Other travel options to Carmarthen take longer:
Bus takes on average 2h 1m.
- Around 7 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, first_great_western, Transport for Wales to go to Carmarthen by train.
- 1 direct buses per day with Mid Wales Travel.
- 6 direct trains per day with Great Western Railway, first_great_western, Transport for Wales.
Travelling from Cardiff to Carmarthen: related information
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