Please be aware that London has multiple airports and that these results are for all airports serving the city.
The best month to arrive at London is November and the most expensive month to fly is April. (Average prices, based on 602 datapoints.)
The best day to arrive at London is Tuesday and it would be best to avoid Thursday, as prices are on average 81.24% higher than on Tuesday. (Average prices, based on 675 datapoints.)
The cheapest airline flying to London is Air Europa. They are 66% cheaper than Turkish Airlines. (Average prices, based on 817 datapoints.)
At London the most flights depart around 07:00. (Hourly flights, based on 1287 datapoints.)
From London it is on average the cheapest to fly to Lisbon and to Amsterdam. (Average prices, based on 347 datapoints.)
From London most of the flights depart to Amsterdam, second best connected from London is Frankfurt. (Daily flights, based on 233 datapoints.)