What is the distance between Swansea and Carmarthen?

Swansea and Carmarthen are 37 km (23 miles) apart.

What are the departure and arrival locations for buses traveling from Swansea to Carmarthen?

Buses departing from Swansea University - Bay Campus in Swansea will take you to Carmarthen Bus Stop (o/s Bus Stn) in Carmarthen.

Bus from Swansea to Carmarthen starting at $11 | Compare & Save up to 44%

Next bus departures

Next departures for Swansea to Carmarthen on November 18
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Bus	5:00pm	Swansea Bus Station, Stand A	45m	5:45pm	Lammas Street, outside the Boar’s Head	Cheapest
Bus	4:15pm	Swansea Bus Station, Stand B	45m	5:00pm	Lammas Street, outside the Boar’s Head	Fastest
Bus	4:15pm	Swansea Bus Station, Stand B	45m	5:00pm	Lammas Street, outside the Boar’s Head	No tags
Bus	5:00pm	Swansea Bus Station, Stand A	45m	5:45pm	Lammas Street, outside the Boar’s Head	No tags

Next departures for Swansea to Carmarthen on November 20
Vehicle type	Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
Bus	5:00pm	Swansea Bus Station, Stand A	45m	5:45pm	Lammas Street, outside the Boar’s Head	Cheapest
Bus	4:15pm	Swansea Bus Station, Stand B	45m	5:00pm	Lammas Street, outside the Boar’s Head	Fastest
Bus	4:15pm	Swansea Bus Station, Stand B	45m	5:00pm	Lammas Street, outside the Boar’s Head	No tags
Bus	5:00pm	Swansea Bus Station, Stand A	45m	5:45pm	Lammas Street, outside the Boar’s Head	No tags

Last refresh of the prices: Today at 1:03 PM GMT.

Compare 2 ways to go from Swansea to Carmarthen

We recommend taking the bus

Among the sustainable travel choices, the bus stands out as a good way to reach Carmarthen. The journey takes about 45 minutes, and with fares starting at just $14, it presents an excellent value for a comfortable ride.

1bus per day

45mAverage Duration

37 kmDistance

1kgCO₂ emissions

	Average Price	Average Duration	CO₂ emissions	Actions
Bus	Average Price$14 - $17	Average Duration45m	CO₂ emissions 1kg CO₂e
Train	Average Price$26 - $40	Average Duration47m	CO₂ emissions 1kg 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 WiFi. National Express ticket prices on this trip start at $14

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

Where are the popular stops in Swansea and Carmarthen?

Stops in Swansea

A - Swansea University - Bay Campus

B - Swansea Bus Station

C - Wellington St

Stops in Carmarthen

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

Frequently asked questions about travelling from Swansea to Carmarthen by bus

What is the distance between Swansea and Carmarthen?
Swansea and Carmarthen are 37 km (23 miles) apart.
What are the departure and arrival locations for buses traveling from Swansea to Carmarthen?
Buses departing from Swansea University - Bay Campus in Swansea will take you to Carmarthen Bus Stop (o/s Bus Stn) in Carmarthen.

Find cheapest prices for buses

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

Best price found

11-16

No data

11-17

$12

Today

$11

11-19

No data

11-20

$11

11-21

$11

11-22

No data

11-23

No data

The cheapest trip from Swansea to Carmarthen was searched and found on Nov 18, 2025 with a price of $11

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

You can expect to pay from $11 to $20 for a bus ticket from Swansea to Carmarthen based on the last 2 days. You can expect to find the cheapest price for the trip at $11 which is on 2025-11-21.