Engineering work is taking place between Brookwood and Aldershot, closing all lines.
Buses will replace trains between Ascot and Guildford via Aldershot, and between Farnborough and Alton, all day on Sunday.
No trains will run between Woking and Ascot.
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 drop-off 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.