Carmarthen to Swansea Timetable

Summer 2026 (until Saturday 12th December unless otherwise indicated - see service detail)

Monday to Friday

  • AW

  • AW

  • AW

  • GW

  • AW

  • AW

  • GW

  • AW

  • AW

  • GW

  • AW

  • AW

  • AW

  • AW

  • GW

  • AW

  • AW

  • AW

  • GW

  • AW

  • AW

  • AW 📅

  • AW 📅

  • GW

  • AW

  • AW

  • AW

  • GW 📅

  • GW 📅

  • GW 📅

  • AW 📅

  • AW 📅

  • AW 📅

  • AW 📅

  • AW 📅

  • AW 📅

Saturday

  • AW

  • AW

  • AW

  • GW

  • AW

  • AW

  • AW

  • GW

  • AW

  • AW

  • AW

  • GW

  • AW

  • AW

  • AW

  • GW

  • AW

  • AW

  • AW

  • GW

  • AW

  • GW

  • AW

  • AW

  • GW

  • AW

  • AW

  • AW

  • GW

  • AW

  • AW

  • AW

  • AW

Sunday

  • AW

  • AW

  • AW

  • AW

  • AW

  • GW

  • AW

  • AW

  • GW

  • AW

  • AW

  • GW

  • AW

  • AW

  • GW

  • AW

  • AW

  • AW

Train Operators
AW
GW
📅
Does not run daily or interim schedule

First and Last Service

On weekdays the first train departs Carmarthen at 04:37 arriving at Swansea at 05:24. The last train departs Carmarthen at 22:43 arriving at Swansea at 23:32.

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 46 minutes. The overall average journey time between Carmarthen and Swansea is 47 minutes.

Timetable data under licence from RSP / Rail Delivery Group