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

Return flights

13 Oct - 21 Oct	Air China
27 Oct - 04 Nov	Air China
21 Oct - 28 Oct	China Southern
15 Oct - 31 Oct	Thai Airways
08 Oct - 15 Oct	Thai Airways
29 Oct - 05 Nov	Thai Airways
27 Oct - 03 Nov	Thai Airways
27 Oct - 05 Nov	Thai Airways
28 Oct - 05 Nov	Thai Airways
28 Oct - 03 Nov	Thai Airways
18 Oct - 01 Nov	Thai Airways
09 Oct - 16 Oct	China Southern
07 Oct - 18 Oct	Thai Airways
23 Oct - 26 Oct	China Southern
01 Oct - 07 Nov	Thai Airways
01 Oct - 30 Nov	China Southern
10 Oct - 16 Oct	Emirates
02 Oct - 15 Oct	Etihad Airways
02 Oct - 12 Oct	China Southern

Also check the deals for one-way flights from Seoul to Islamabad in October.

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 October from $634

Return flights