Please be aware that Shanghai has multiple airports and that these results are only for Pudong International airport.
The best day to arrive at Shanghai is Monday and it would be best to avoid Sunday, as prices are on average 44.91% higher than on Monday. (Average prices, based on 904 datapoints.)
The cheapest airline flying to Shanghai is Cebu Pacific Air. They are 45% cheaper than AirAsia X. (Average prices, based on 376 datapoints.)
At Shanghai the most flights depart around 09:00. (Hourly flights, based on 742 datapoints.)
From Shanghai it is on average the cheapest to fly to Xiamen and to Seoul. (Average prices, based on 171 datapoints.)
From Shanghai most of the flights depart to Tokyo, second best connected from Shanghai is Beijing. (Daily flights, based on 199 datapoints.)