Please be aware that Shanghai has multiple airports and that these results are only for Pudong International airport.
The best month to arrive at Shanghai is May and the most expensive month to fly is July. (Average prices, based on 539 datapoints.)
The best day to arrive at Shanghai is Friday and it would be best to avoid Sunday, as prices are on average 76.9% higher than on Friday. (Average prices, based on 704 datapoints.)
The cheapest airline flying to Shanghai is China Southern Airlines. They are 78% cheaper than Singapore Airlines. (Average prices, based on 637 datapoints.)
At Shanghai the most flights depart around 20:00. (Hourly flights, based on 959 datapoints.)
From Shanghai it is on average the cheapest to fly to Guangzhou and to Seoul. (Average prices, based on 171 datapoints.)
From Shanghai most of the flights depart to Xi an, second best connected from Shanghai is Beijing. (Daily flights, based on 175 datapoints.)