Question to the Department for Transport:

To ask the Secretary of State for Transport, what estimate his Department uses for the benchmark journey time from London to (a) Glasgow and (b) Edinburgh.

The timetable for HS2 services is still being developed, and is subject to change.

However, current benchmark journey times without HS2, and with the various phases of HS2, to Glasgow and Edinburgh can be found in the HS2 Phase 2 Strategic Case (July 2017) - https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/629393/high-speed-two-phase-two-strategic-case.pdf