The best day to arrive at Hangzhou is Thursday and it would be best to avoid Monday, as prices are on average 338.07% higher than on Thursday. (Average prices, based on 209 datapoints.)
The cheapest airline flying to Hangzhou is Hainan Airlines. They are 70% cheaper than EVA Air. (Average prices, based on 202 datapoints.)
At Hangzhou the most flights depart around 12:00. (Hourly flights, based on 224 datapoints.)