Next bus departures
| Operated by | Vehicle type | Departure time | Departure location | Trip duration | Arrival time | Arrival location | Recommended | Price and booking link |
|---|---|---|---|---|---|---|---|---|
 | Bus | Lammas Street, outside the Boar’s Head | Swansea Bus Station, Stand A | CheapestFastest | ||||
| Bus | Lammas Street, outside the Boar’s Head | Swansea Bus Station, Stand B | No tags | ||||
| Bus | Lammas Street, outside the Boar’s Head | Swansea Bus Station, Stand B | No tags | ||||
| Bus | Lammas Street, outside the Boar’s Head | Swansea Bus Station, Stand A | No tags |
Last refresh of the prices: Yesterday at 12:08 GMT.
Compare 2 ways to travel from Carmarthen to Swansea
Among the sustainable travel choices, the bus stands out as a good way to reach Swansea. The journey takes about 50 minutes and with fares starting at just £8, it presents an excellent value for a comfortable ride.
Where are the popular stops in Carmarthen and Swansea?
Stops in Carmarthen
- A
Carmarthen Bus Stop (o/s Bus Stn)
27 Blue Street, Stand 2, Carmarthen SA31 3LE
Stops in Swansea
- A
Swansea University - Bay Campus
Elba Crescent, Skewen, Swansea SA1 8QQ, UK - BPlymouth Street, Swansea SA1, Wales, United Kingdom
- C
Wellington St
Wellington St, Swansea SA1 3QX, UK
Compare bus companies
Based on 29737 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 £8
Frequently asked questions about travelling by bus from Carmarthen to Swansea
Please note that timetables, routes, or operator details shown here may be updated or vary at the time of your journey.
How much is the bus ticket from Carmarthen to Swansea?
The cheapest coach tickets from Carmarthen to Swansea start from £8. The average price for this route is around £8. Busbud recommends that you book your tickets in advance for a better chance to get the lowest possible price.
How long is the bus journey from Carmarthen to Swansea?
The average bus journey time from Carmarthen to Swansea is 50m, covering a distance of 23 miles. The fastest bus can take you there in 50m and is operated by National Express.
Which bus companies service the Carmarthen to Swansea route?
Several major bus companies operate on this route with 2 buses available per day.
What is the earliest and latest departure time for the bus from Carmarthen to Swansea?
The earliest bus departs from Carmarthen to Swansea at 08:25. And the latest bus departs at 10:55.
What are the CO₂ emissions for the bus trip from Carmarthen to Swansea?
A bus journey from Carmarthen to Swansea produces an estimated 1 kg of CO₂, making it a highly eco-friendly choice and a mode of travel recommended by Busbud.
Find cheapest prices for buses
Price is for a one-way ticket for one passenger and based on past searches.
The cheapest trip from Carmarthen to Swansea was searched and found on 26 Nov 2025 with a price of £6To save money and be sure you have the best seat, it's a good idea to buy your bus tickets from Carmarthen to Swansea as early as possible.
You can expect to pay from £6 to £11 for a bus ticket from Carmarthen to Swansea based on the last 2 days. You can expect to find the cheapest price for the trip at £6, which is on 2025-11-30.
What's the cheapest way to go from Carmarthen to Swansea?
The bus is the cheapest travel choice for this destination
