How far is Cardiff from Carmarthen by coach?

The journey from Carmarthen to Cardiff by coach covers an approximate distance of 55 miles (89 km).

What is the best way to go from Carmarthen to Cardiff without a car?

The best way to go from Carmarthen to Cardiff without a car is by coach. They are frequent and reliable, offering a convenient and eco-friendly journey. Depending on your preferences, another alternative is to explore ridesharing trips.

Bus from Carmarthen to Cardiff from £8 | Compare & Save up to 60%

Next bus departures

Next departures from Carmarthen to Cardiff on 19 November
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Bus	08:40	Lammas Street, outside the Boar’s Head	2h 30m	11:10	Sophia Gardens	CheapestFastest
Bus	08:40	Lammas Street, outside the Boar’s Head	2h 30m	11:10	Sophia Gardens	No tags
Bus	10:55	Lammas Street, outside the Boar’s Head	2h 35m	13:30	Sophia Gardens	No tags
Bus	10:55	Lammas Street, outside the Boar’s Head	2h 35m	13:30	Sophia Gardens	No tags

Next departures from Carmarthen to Cardiff on 20 November
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Bus	08:40	Lammas Street, outside the Boar’s Head	2h 30m	11:10	Sophia Gardens	CheapestFastest
Bus	08:40	Lammas Street, outside the Boar’s Head	2h 30m	11:10	Sophia Gardens	No tags
Bus	10:55	Lammas Street, outside the Boar’s Head	2h 35m	13:30	Sophia Gardens	No tags
Bus	10:55	Lammas Street, outside the Boar’s Head	2h 35m	13:30	Sophia Gardens	No tags

Last refresh of the prices: Last Saturday at 14:51 GMT.

Compare 3 ways to travel from Carmarthen to Cardiff

We recommend carpooling

Among the sustainable travel choices, the carpool stands out as a good way to reach Cardiff. The journey takes about 1 hour 50 minutes and with fares starting at just £13, it presents an excellent value for a comfortable ride.

1carpool per day

1h 50mAverage duration

55 milesDistance

4kgCO₂ emissions

	Average price	Average duration	CO₂ emissions
Bus	Average price£9 - £16	Average duration2h 30m	CO₂ emissions 2kg CO₂e
Train	Average price£9 - £46	Average duration1h 54m	CO₂ emissions 2kg CO₂e
Carpool	Average price£13 - £13	Average duration1h 50m	CO₂ emissions 4kg CO₂e

Compare bus companies

National Express

4/529,715 reviews

Staff4.7

Timeliness4

Cleanliness4.7

WiFi3.4

Based on 29715 reviews, the company was rated 4.2 stars on Busbud. Travellers were especially satisfied with the ticket access and the staff but often complained with the Wi-Fi. National Express ticket prices on this trip start at £9

National Express Carmarthen Cardiff recent customer reviews

nd friendly driver

Anne M.

2 November 2022

Excellent our driver was very informative and sociable

Janet J.

5 December 2021

Brilliant service

Ann W.

14 December 2019

GB Bus Companies: FlixBus, BlaBlaCar Bus, ALSA, Greyhound, Intercape, Trenitalia, Sindbad

Where are the popular stops in Carmarthen and Cardiff?

Stops in Carmarthen

A - Carmarthen Bus Stop (o/s Bus Stn)

Stops in Cardiff

A - Sophia Gardens

B - Cardiff University (o/s Cathays Rail Stn)

C - Cardiff Coach Station - Sophia Gardens

D - Cardiff - Castle Street Bus Stop

E - National Museum

F - Cardiff Bus Stop - Westgate

Frequently asked questions about travelling by bus from Carmarthen to Cardiff

How far is Cardiff from Carmarthen by coach?
The journey from Carmarthen to Cardiff by coach covers an approximate distance of 55 miles (89 km).
What is the best way to go from Carmarthen to Cardiff without a car?
The best way to go from Carmarthen to Cardiff without a car is by coach. They are frequent and reliable, offering a convenient and eco-friendly journey. Depending on your preferences, another alternative is to explore ridesharing trips.

Find cheapest prices for buses

Price is for a one-way ticket for one passenger and based on past searches.

Best price found

16/11

£9

17/11

£8

Today

No data

19/11

£8

20/11

£9

21/11

No data

22/11

No data

23/11

£8

The cheapest trip from Carmarthen to Cardiff was searched and found on 17 Nov 2025 with a price of £8

To save money and be sure you have the best seat, it's a good idea to buy your bus tickets from Carmarthen to Cardiff as early as possible.

You can expect to pay from £8 to £18 for a bus ticket from Carmarthen to Cardiff based on the last 2 days. You can expect to find the cheapest price for the trip at £8, which is on 2025-11-19.