The best month to fly between Hong Kong and Shanghai is May and the most expensive month to fly is January. (Average prices, based on 282 datapoints.)
The best day to arrive at Hong Kong is Friday and it would be best to avoid Saturday, as prices are on average 142.2% higher than on Friday. (Average prices, based on 295 datapoints.)
The cheapest airline flying from Hong Kong to Shanghai is Spring Airlines. They are 60% cheaper than Cathay Pacific. (Average prices, based on 304 datapoints.)
The best time to fly is at around 14. (Average prices, based on 538 datapoints.)