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

Return flights

17 Aug - 24 Aug	China Southern
31 Aug - 14 Sep	China Southern
12 Aug - 21 Aug	China Southern
21 Aug - 04 Sep	China Southern
26 Aug - 04 Sep	China Southern
05 Aug - 19 Aug	China Southern
12 Aug - 19 Aug	China Southern
03 Aug - 17 Aug	China Southern
03 Aug - 10 Aug	China Southern
03 Aug - 12 Aug	China Southern
20 Aug - 27 Aug	Thai Airways
01 Aug - 18 Aug	Thai Airways
01 Aug - 01 Sep	Thai Airways
15 Aug - 31 Aug	Etihad Airways

Also check the deals for one-way flights from Seoul to Islamabad 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 Seoul to Islamabad in August from $489

Return flights