It’s the festive season. Christmas is just around the corner, and winter is coming to Europe and now 
British Airways’ summer destinations are long over. All of the top ten busiest international BA flights scheduled for December are from London Heathrow Airport (with London City Airport the only other airport making it into the top twenty). BA also operates international flights from Heathrow as far as Chile, South Africa, and Hong Kong. These are the most common international routes for British Airways for the month of December, per data by Cirium (an aviation analytics company).