Engineering work is taking place between Saunderton and Haddenham & Thame Parkway, closing all lines.
Buses will replace trains between High Wycombe and Bicester North / Bicester Village.
Additionally, replacement buses will run between Aylesbury Vale Parkway and Bicester North / Bicester Village.
Shuttle train services will run between London Marylebone and High Wycombe, between Bicester Village and Oxford, and also between Bicester North and Birmingham Moor Street / Kidderminster.
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.