Engineering work is taking place between Swansea and Neath until 08:50 on Sunday, closing all lines.
As a result, the 07:53 Swansea to London Paddington service will start from Cardiff Central .
Replacement buses will run earlier than usual from Swansea (07:35) to Cardiff Central, and from Neath (07:20) to Cardiff Central, calling at Port Talbot Parkway and Bridgend.
Check before you travel:
These changes are not currently shown in the National Rail Enquiries Journey Planner, please check back nearer to the time of travel.
You can find the location of your bus replacement by checking station signs or by searching for your station on our station information pages
Replacement Bus Travel Advice:
Bicycles are not allowed on rail replacement bus services at any time, unless fully folded. More travel advice for your replacement bus journey is available by selecting the Train Operating Company you are travelling with here.