Amended evening Transport for Wales trains between Carmarthen and Cardiff Central on Thursday 1 January 2026 

Route(s) affected

Between Fishguard Harbour / Carmarthen and Cardiff Central

Description

Engineering work is taking place between Swansea and Briton Ferry, closing some lines overnight.

The following services will be diverted and will not call at stations between Llanelli and Briton Ferry via Swansea:

• 21:46 Fishguard Harbour to Cardiff Central

• 23:20 Cardiff Central to Carmarthen

Rail replacement buses will run between:

• Llanelli to Port Talbot Parkway, departing Llanelli at 23:19

• Port Talbot Parkway to Carmarthen, departing Port Talbot Parkway at 00:13

Check before you travel:

You can plan your journey using the National Rail Enquiries 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 set-down 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.