All flights in and out of East Midlands Airport have been delayed as the snow causes chaos across the country.
Passengers are advised to contact their airline to confirm details of their flights.
British Airways was inundated with messages from unhappy customers on social media, who complained of long waits on the tarmac and no response on their customer service phone line.
Flights were temporarily suspended at Birmingham Airport while snow was cleared from the runway.
Heathrow Airport also stated: "Some flights at Heathrow will be disrupted today due to crew and aircraft being out of position following yesterday's weather".
"The safety and comfort of our passengers is always our first priority and we're working closely with our airlines to ensure affected passengers are looked after".
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Five flights to Heathrow Airport from Glasgow have been cancelled today, with the 09:55, 12:55, 15:25 and the 20:10 all affected.
Delays from flights out of Britain may impact on services later today.
There have been delays overnight on Eurotunnel.
Belfast International Airport's spokeswoman said 16 Easyjet flights had been cancelled so far on Sunday.
In a statement today, British Airways said: " Heathrow is continuing to experience severe adverse weather conditions.
The airport was packed as passengers backed up waiting for news of flights.