Please be aware that Milan and London has multiple airports and that these results are for all airports serving the city.
The best month to fly between Milan and London is May and the most expensive month to fly is August. (Average prices, based on 309 datapoints.)
The best day to arrive at Milan is Wednesday and it would be best to avoid Thursday, as prices are on average 200.39% higher than on Wednesday. (Average prices, based on 309 datapoints.)