The disruption following airspace closures has seen increases in demand for trains and more seats will be provided on the London to Glasgow and Birmingham to Glasgow/Edinburgh routes.
Besides the extra seats, Virgin Trains will operate an additional train from London Euston to Crewe, Warrington, Wigan and Preston at 13:33 and also extend the 14:30 London Euston to Lancaster service through to Carlisle and Glasgow Central.
An additional 20:40 Edinburgh Waverley to Manchester Piccadilly service will also run calling at Preston and Crewe.
Based on experience during prolonged airspace closures last year ,Virgin Trains has now set up a mechanism for quickly uplifting services in response to ash cloud warnings.
For details of times and fares and for booking tickets visit virgintrains.com or any Virgin Trains ticket office.
A decision on the level of service to be run later in the week will be made in the light of further updated forecasts from the Met Office.