Bus from Carmarthen to Cardiff: Tickets & Schedules

Next bus departures

Next departures for Carmarthen to Cardiff on December 2
Operated byVehicle typeDeparture timeDeparture locationTrip durationArrival timeArrival locationRecommendedPrice and booking link
National ExpressBus
    Lammas Street, outside the Boar’s Head
    Sophia GardensCheapestFastest
    National ExpressBus
      Lammas Street, outside the Boar’s Head
      Sophia GardensNo tags
      National ExpressBus
        Lammas Street, outside the Boar’s Head
        Sophia GardensNo tags
        National ExpressBus
          Lammas Street, outside the Boar’s Head
          Sophia GardensNo tags

          Last refresh of the prices: Yesterday at 2:36 PM GMT.

          Compare 3 ways to go from Carmarthen to Cardiff

          We recommend carpooling

          Among the sustainable travel choices, the carpool stands out as the good way to reach Cardiff. The journey takes about 1 hour 50 minutes and with fares starting at just $16, it presents an excellent value for a comfortable ride.

          1carpool per day
          1h 50mAverage Duration
          55 milesDistance
          4kgCO₂ emissions
          Average Price$12 - $20Average Duration2h 30m
          2kg CO₂e
          Average Price$11 - $59Average Duration1h 54m
          2kg CO₂e
          Carpool
          Average Price$16 - $16Average Duration1h 50m
          4kg CO₂e

          Frequently asked questions about traveling from Carmarthen to Cardiff by bus

          Please note that schedules, routes, or operator details shown here may be updated or vary at the time of your trip.

          1. How much is the bus ticket from Carmarthen to Cardiff?

            The cheapest bus tickets from Carmarthen to Cardiff start from $12. The average price for this route is around $16. Busbud recommends that you book your tickets in advance for a better chance to get the lowest possible price.

          2. How long is the bus ride from Carmarthen to Cardiff?

            The average bus trip duration from Carmarthen to Cardiff is 2h 30m, covering a distance of 55 miles (88 km). The quickest bus can get you there in 2h 30m and is operated by National Express.

          3. Which bus companies service the Carmarthen to Cardiff route?

            Several major train operators operate on this route with 2 trains available per day.

          4. What is the earliest and latest departure time for the bus from Carmarthen to Cardiff?

            The earliest bus departs from Carmarthen to Cardiff at 8:25am. And the latest bus departs at 10:55am.

          5. What are the CO₂ emissions for the bus trip from Carmarthen to Cardiff?

            A bus trip from Carmarthen to Cardiff generates an estimated 2 kg of CO₂, making it a highly eco-friendly travel option and recommended mode of travel by Busbud.

          Find cheapest prices for buses

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

          Best price found
          11/29
          $10
          11/30
          $12
          Today
          $10
          12/02
          $10
          12/03
          No data
          12/04
          $10
          12/05
          No data
          12/06
          $10
          busbud logoThe cheapest trip from Carmarthen to Cardiff was searched and found on Dec 4, 2025 with a price of $10

          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 $10 to $23 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 $10 which is on 2025-12-04.

          People from around the world trust Busbud