The best day to arrive at Hangzhou is Thursday and it would be best to avoid Monday, as prices are on average 316.39% higher than on Thursday. (Average prices, based on 205 datapoints.)
At Hangzhou the most flights depart around 07:00. (Hourly flights, based on 331 datapoints.)
From Hangzhou most of the flights depart to Guangzhou, second best connected from Hangzhou is Beijing. (Daily flights, based on 99 datapoints.)