27th March 2022

Sunday 27th March 2022:

Planned engineering works will be taking place between Denham and Princes Risborough until approximately 09.00. During this period, rail replacement buses will operate over the following route sections:

• Marylebone - stations to Princes Risborough.
• Princes Risborough - stations to Hillingdon (for connecting London Underground services to Baker Street).
• High Wycombe - Amersham (for connecting Chiltern Railways services to Marylebone).

The first THROUGH trains to/from Marylebone are as follows:

• 08.34 Banbury - Marylebone.
• 08.42 Marylebone - Oxford.

Additionally, planned late-night engineering works will be taking place in the Aylesbury area, and an amended timetable will be in operation after 23:00.

Some late night journeys will take considerably longer than usual, and may involve travel via alternative routes, on other operator's services and/or rail replacement bus services.

Finalised timetables are uploaded into online journey planners 9 weeks before the date of operation. Please check your journey in the planner at the following link: https://buy.chilternrailways.co.uk/. Any journey checked outside of this timescale may be subject to change; please double-check how these amendments are due to affect your travel plans. For some engineering works and special events at Wembley Stadium, timetables may be released closer to the date of operation.