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 84% cheaper than All Nippon Airways. (Average prices, based on 640 datapoints.)
At Shanghai the most flights depart around 20:00. (Hourly flights, based on 1090 datapoints.)
From Shanghai it is on average the cheapest to fly to Hong Kong and to Seoul. (Average prices, based on 213 datapoints.)
From Shanghai most of the flights depart to Beijing, second best connected from Shanghai is Xi an. (Daily flights, based on 229 datapoints.)