7th March 2026

Saturday 7th March 2026:

An amended timetable will be in operation, in respect of the following:

• Planned engineering/emergency signalling works (late night).
• (Routine maintenance at Oxford).
• (Emergency signalling work in the Gerrards Cross area).

The railway is closed between Oxford Parkway and Oxford after 22.55, affecting all late night services to/from Oxford. During this period, rail replacement buses will operate between Oxford Parkway - Oxford and/or Bicester North - Oxford.

In respect of emergency signalling works, the following timetable alteration applies:

• 00.10 Marylebone - Aylesbury terminates at High Wycombe, for connecting rail replacement buses forward, as follows:
• High Wycombe - Princes Risborough - Aylesbury.
• High Wycombe - Saunderton - Princes Risborough - Monks Risborough - Little Kimble - Aylesbury.

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.