Engineering work is taking place between Didcot Parkway and Swindon, closing various lines on Friday evening.
As a result, the 23:32 London Paddington to Cardiff Central service will be diverted between Reading and Bath Spa, and will not call at Didcot Parkway, Swindon or Chippenham.
The 23:15 London Paddington to Oxford service will be amended to additionally call at Didcot Parkway.
A replacement bus will run from Reading to Swindon and Chippenham. A second bus will run from Didcot Parkway to Swindon, connecting with the Reading - Chippenham bus.
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.
Replacement Bus Travel Advice:
For helpful advice if you need to travel on a rail replacement service, including accessibility and bicycle information, please use this page.
You can find the location of your bus replacement by checking station signs or by searching for your station on our station information pages.