The best month to fly between Hong Kong and Seoul is July and the most expensive month to fly is January. (Average prices, based on 582 datapoints.)
The best day to arrive at Hong Kong is Thursday and it would be best to avoid Saturday, as prices are on average 58.59% higher than on Thursday. (Average prices, based on 584 datapoints.)
The cheapest airline flying from Hong Kong to Seoul is Hong Kong Express. They are 58% cheaper than Cathay Pacific. (Average prices, based on 591 datapoints.)
The best time to fly is at around 2. (Average prices, based on 981 datapoints.)