Please be aware that Shanghai has multiple airports and that these results are for all airports serving the city.
The best month to fly between Shanghai and Guangzhou is March and the most expensive month to fly is June. (Average prices, based on 396 datapoints.)
The best day to arrive at Shanghai is Thursday and it would be best to avoid Saturday, as prices are on average 102.31% higher than on Thursday. (Average prices, based on 235 datapoints.)
The cheapest airline flying from Shanghai to Guangzhou is Hainan Airlines. They are 19% cheaper than Shanghai Airlines. (Average prices, based on 417 datapoints.)
