All flights to Gibraltar have arrived today despite snow-storms there and strong winds here.
This follows the cancellation of more than 160 flights at Heathrow Airport yesterday and more than 60 today, which is said to translate into between 13,000 to 15,000 passengers.
It meant flights being diverted as far away as Newcastle - around 300 miles away - and aircraft held on the airport's apron for hours before taking off.
It has reportedly cancelled 24 long-haul flights as well as dozens of shorter flights.
Both British Airways and Heathrow apologised for the "problems and inconvenience".
Although Heathrow remained open throughout the day, around 150 inbound and outbound flights were cancelled - partly because of a reduction in the arrivals rate stipulated by air-traffic controllers, and partly due to delays in de-icing.
Meanwhile on the continent almost 300 KLM flights were canceled at Amsterdam's Schipol airport, according to the BBC, which noted that 50 flights were canceled at Brussels airport.
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By 10am, the airline cancelled 20 flights to create gaps in the schedule, but that soon doubled and the delays had a knock-on effect to other airlines such as Austrian Airlines, KLM, Lufthansa and Swiss Airlines.
"We're very sorry that some of our customers" travel plans have been affected by heavy snowfall being experienced across the United Kingdom and Europe, ' a British Airways spokesman said. "Like other airlines, we are experiencing some delays and cancellations".
Glasgow and Aberdeen Airports were also reporting cancellations to several flights heading to England and Amsterdam.
A Heathrow spokesperson said: 'Weather across the United Kingdom and Europe is resulting in some passengers experiencing disruption to their journeys.
"The safety and comfort of our passengers is always our first priority and we are working closely with our airlines to ensure affected passengers are looked after".
Intending passengers should check with their airline before traveling to the airport. "As soon as it's safe we'll start operations again".