AirHint found the following cheapest return flights from Chongqing (CKG) to Seoul (ICN) in September 2025 (see full year).

Return flights

09 Sep - 13 Sep	China Southern
19 Sep - 23 Sep	China Southern
07 Sep - 13 Sep	China Southern
12 Sep - 15 Sep	China Southern
12 Sep - 14 Sep	China Southern
13 Sep - 15 Sep	China Southern
19 Sep - 26 Sep	China Southern
19 Sep - 23 Sep	Asiana Airlines	direct
09 Sep - 13 Sep	Asiana Airlines	direct
19 Sep - 26 Sep	Asiana Airlines	direct

Also check the deals for one-way flights from Chongqing to Seoul in September.

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 Chongqing to Seoul in September from 152€

Return flights