Next train departures
| Operated by | Vehicle type | Departure time | Departure location | Trip duration | Arrival time | Arrival location | Recommended | Price and booking link |
|---|---|---|---|---|---|---|---|---|
 | Train | Swindon (Wilts) | Carmarthen | Cheapest | ||||
| Train | Swindon (Wilts) | Carmarthen | Fastest | ||||
| Train | Swindon (Wilts) | Carmarthen | No tags | ||||
| Train | Swindon (Wilts) | Carmarthen | No tags | ||||
| Train | Swindon (Wilts) | Carmarthen | No tags |
Last refresh of the prices: Last Thursday at 16:23 GMT.
Get from Swindon to Carmarthen
The journey takes about 3 hours, and with fares starting at just £40, it presents an excellent value for a comfortable ride.
Train Companies
Based on 42 reviews, the company was rated 4 stars on Busbud. Travellers were especially satisfied with the staff and the seats but often complained with the Wi-Fi. Great Western Railway ticket prices on this trip start at £40
Frequently asked questions about travelling from Swindon to Carmarthen by train
Please note that timetables, routes, or operator details shown here may be updated or vary at the time of your journey.
How much does a train ticket cost from Swindon to Carmarthen?
The cheapest train tickets from Swindon to Carmarthen start from £40. The average price for this train route is around £59. Busbud recommends booking your tickets in advance for the best chance of getting the lowest possible price.
How long is the train journey from Swindon to Carmarthen?
The average train journey time from Swindon to Carmarthen is 3h, covering a distance of 110 miles. The fastest train gets you there in 2h 41m and is operated by Great Western Railway.
Which train operators serve the Swindon to Carmarthen route?
Several major train operators run on this route with 3 trains available per day.
What are the earliest and latest departure times for the train from Swindon to Carmarthen?
The earliest train from Swindon to Carmarthen departs at 07:40. And the latest train departs at 18:40.
Find cheapest prices for trains
Price is for a one-way ticket for one passenger and based on past searches.
The cheapest trip from Swindon to Carmarthen was searched and found on 13 Dec 2025 with a price of £38To save money and be sure you have the best seat, it's a good idea to buy your train tickets from Swindon to Carmarthen as early as possible.
You can expect to pay from £38 to £102 for a train ticket from Swindon to Carmarthen based on the last 2 days. You can expect to find the cheapest price for the trip at £38, which is on 2025-12-15.
