Widespread disruption is continuing to be caused today by the almost complete closure of London's busy Heathrow airport due to the continuing arctic weather conditions.
This live webcam is at Heathrow monitoring the ongoing problems:
Heathrow Airport Webcam
Thousands of travellers have been stranded at Heathrow airport overnight. There will be no flight arrivals at Heathrow on Sunday and only a handful of departures.
Hundreds of thousands of Britons had been due to fly this weekend, according to travel association Abta, which estimated that four million people expected to go abroad.
Heathrow airport told the BBC that "a few thousand spent the night in the terminals" but said just four short-haul and three long-haul flights would leave on Sunday morning. It hoped to be operational on Monday.
Andrew Teacher, from Heathrow operator BAA, said it had invested more than £6m in the last year in technology to move snow and de-ice runways and that staff had been working through the night.