Engineering work is taking place between Swindon and Bristol Parkway, closing all lines late on Monday to Thursday evenings.
As a result, the 22:49 London Paddington to Swansea will divert between Swindon and Bristol Parkway (via Bath Spa – not calling). It will run later than normal to Newport and beyond.
Check before you travel:
You can plan your journey using the National Rail Enquiries Journey Planner.