Next bus departures
| Operated by | Vehicle type | Departure time | Departure location | Trip duration | Arrival time | Arrival location | Recommended | Price and booking link |
|---|---|---|---|---|---|---|---|---|
 | Bus | Johnston Bus Stop (o/s Railway Inn) | Lammas Street, outside the Boar’s Head | Cheapest | ||||
| Bus | Johnston Bus Stop (o/s Railway Inn) | Lammas Street, outside the Boar’s Head | Fastest | ||||
| Bus | Johnston Bus Stop (o/s Railway Inn) | Lammas Street, outside the Boar’s Head | No tags | ||||
| Bus | Johnston Bus Stop (o/s Railway Inn) | Lammas Street, outside the Boar’s Head | No tags |
Last refresh of the prices: Last Saturday at 7:49 PM GMT.
Get from Johnston to Carmarthen
The journey takes about 1 hour 30 minutes and with fares starting at just $8, it presents an excellent value for a comfortable ride.
Compare bus companies
Based on 29779 reviews, the company was rated 4.2 stars on Busbud. Travelers 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 $8
Frequently asked questions about traveling from Johnston to Carmarthen by bus
Please note that schedules, routes, or operator details shown here may be updated or vary at the time of your trip.
How much is the bus ticket from Johnston to Carmarthen?
The cheapest bus tickets from Johnston to Carmarthen 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 ride from Johnston to Carmarthen?
The average bus trip duration from Johnston to Carmarthen is 1h 30m, covering a distance of 31 miles (49 km). The quickest bus can get you there in 1h 30m and is operated by National Express.
Which bus companies service the Johnston to Carmarthen route?
Several major train operators operate on this route with 2 trains available per day.
What is the earliest and latest departure time for the bus from Johnston to Carmarthen?
The earliest bus departs from Johnston to Carmarthen at 6:52am. And the latest bus departs at 9:18am.
What are the CO₂ emissions for the bus trip from Johnston to Carmarthen?
A bus trip from Johnston to Carmarthen generates an estimated 1 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.
The cheapest trip from Johnston to Carmarthen was searched and found on Dec 17, 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 Johnston to Carmarthen, as early as possible.
You can expect to pay from $6 to $11 for a bus ticket from Johnston to Carmarthen based on the last 2 days. You can expect to find the cheapest price for the trip at $7 which is on 2025-12-20.
