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

Return flights

24 Aug - 27 Aug	Serene Air
24 Aug - 30 Aug	Serene Air
10 Aug - 19 Aug	Serene Air
10 Aug - 24 Aug	Serene Air
18 Aug - 24 Aug	PIA
14 Aug - 21 Aug	Fly Jinnah
03 Aug - 21 Aug	China Southern
14 Aug - 24 Aug	China Southern
07 Aug - 14 Aug	Fly Jinnah
05 Aug - 19 Aug	China Southern
05 Aug - 01 Sep	China Southern
27 Aug - 13 Sep	Thai Airways
01 Aug - 01 Sep	Thai Airways

Also check the deals for one-way flights from Islamabad 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 Islamabad to Seoul in August from $591

Return flights