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 May and the most expensive month to fly is April. (Average prices, based on 976 datapoints.)
The best day to arrive at London is Tuesday and it would be best to avoid Saturday, as prices are on average 54.79% higher than on Tuesday. (Average prices, based on 863 datapoints.)
The cheapest airline flying to London is Air Europa. They are 79% cheaper than Swiss Int Air Lines. (Average prices, based on 1057 datapoints.)
At London the most flights depart around 07:00. (Hourly flights, based on 1189 datapoints.)
From London it is on average the cheapest to fly to Amsterdam and to Istanbul. (Average prices, based on 791 datapoints.)
From London most of the flights depart to Amsterdam, second best connected from London is Oslo. (Daily flights, based on 85 datapoints.)