AirHint found the following cheapest return flights from Harbin (HRB) to Seoul (ICN) in August 2025 (see full year).

Return flights

20 Aug - 27 Aug	China Eastern
26 Aug - 10 Sep	China Eastern
26 Aug - 10 Sep	China Southern	direct
26 Aug - 02 Sep	China Southern	direct
17 Aug - 24 Aug	China Eastern
22 Aug - 29 Aug	Jeju Air	direct
30 Aug - 20 Sep	China Southern	direct
17 Aug - 24 Aug	Jeju Air	direct

Also check the deals for one-way flights from Harbin to Seoul in August.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Harbin to Seoul in August from 226€

Return flights