Customers travelling between Saturday, 21 and Sunday, 29 December urged to check their journeys in advance
Journey times will be significantly longer with rail replacement buses and amended timetables in place
No EMR services will run between London St Pancras and Bedford - in both directions
Customers travelling north from London will need to take a train from London Euston to Milton Keynes
Customers travelling south to London St Pancras will transfer to rail replacement buses, which will operate between Bedford and Milton Keynes. From there, customers can continue their journey into London Euston via the West Coast Main Line
As usual there will be no services at all on Christmas Day and Boxing Day