Passengers include VIPS, fundraisers and competition winners
Some 297 VIPs, fundraisers, competition winners and ticket-buying members of the public are onboard for the five-hour trip.
Built in Doncaster, South Yorkshire, in 1923, the Flying Scotsman soon became the star locomotive of the British railway system, pulling the first train to break the 100mph barrier in 1934.
The National Railway Museum (NRM) in York bought the locomotive for £2.3 million in 2004 before work got under way on its restoration in 2006.
The Flying Scotsman will be kept at the NRM until March 6th before embarking on a tour around the country.