Air passengers travelling to and from Scotland have been affected by the snow and plunging temperatures on Friday, with dozens of flights cancelled, delayed or diverted - and one airport closing altogether.
A Met Office amber warning for snow is in place in parts of the country bringing road, rail and air traffic to a standstill.
In Tayside, Dundee Airport bosses closed its doors at around 10am on Friday due to the snow and ice, saying they hoped to reopen "once the weather has cleared".