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Buses replace late night / early morning via Llanelli from Monday 14 to Friday 18 December 

See all service disruptions

Engineering work details

Starts Monday 14 December 2026 to Friday 18 December 2026

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Train operators affected

  • Transport for Wales

Route(s) affected

Various Transport for Wales routes via Llanelli

Description

Engineering work is taking place overnight between Port Talbot and Llanelli, closing some lines.

Monday to Wednesday:

  • 19:05 Pembroke Dock to Cardiff Central service will arrive into Cardiff Central later

Monday to Thursday:

  • 18:35 Shrewsbury to Carmarthen service will terminate at Carmarthen. Rail Replacement buses will depart Llanelli at 22:45 towards Swansea

  • 21:07 Pembroke Dock to Cardiff Central service will divert after Llanelli by an alternative route, not calling at stations between Gowerton and Baglan via Swansea. A rail replacement bus will depart Llanelli at 23:20 to Cardiff Central calling at all stations via Swansea.

  • 21:11 Milford Haven to Cardiff Central service will divert after Llanelli by an alternative route, not calling at stations between Gowerton and Baglan via Swansea. A rail replacement bus will depart Llanelli at 22:50 to Cardiff Central, calling at all stations via Swansea

  • 22:12 Bristol Temple Meads to Carmarthen service will divert after Port Talbot Parkway by an alternative route, not calling at stations between Baglan and Gowerton via Swansea.. A rail replacement bus will depart Port Talbot Parkway at 00:26 to Carmarthen, calling at all stations

Tuesday to Friday:

  • 05:13 service from Swansea to Llandovery will be amended to start from Carmarthen at 05:07. A rail replacement bus will depart Swansea at 04:40 and run to Llanelli, where it will connect with the amended train service

  • 05:43 Swansea to Manchester Piccadilly service will terminate at Cardiff Central and connect with the 06:46 Cardiff Central to Manchester Piccadilly service

Check before you travel:

You can plan your journey using the National Rail Journey Planner.

Replacement bus travel advice:

For helpful advice if you need to travel on a rail replacement service, including accessibility and bicycle information, please use our Rail Replacement Services page.

You can find the pick-up and drop-off location of rail replacement services by checking station signage or by searching for your station on our Find a Station page.

Please be advised that replacement vehicles may be busier than usual, and you should allow extra time for your journey.

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