Thousands of people in the UK are facing a Christmas travel nightmare as strong winds led to the cancellation of hundreds of flights and ferries. A Met Office yellow weather warning was in place until 9pm on Sunday from John o’Groats to Land’s End, with gusts of up to 60mph widespread and some as strong as 70mph on hills and around exposed coasts. More than 100 flights were expected to be cancelled at Heathrow, Europe’s busiest airport, with passengers advised to check the situation before they travel. An airport spokesperson said predicted high winds on Sunday meant the flow rate