On weekdays the first train departs Swansea at 06:02 arriving at Carmarthen at 06:51. The last train departs Swansea at 00:50 arriving at Carmarthen at 01:38. These timings are based on the "railway day" which begins at 04:30.
Journey Time
On trains operated by Transport for Wales (AW) the average journey time is 48 minutes. On trains operated by Great Western Railway (GW) the average journey time is 45 minutes. The overall average journey time between Swansea and Carmarthen is 47 minutes.