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

Return flights

20 Aug - 27 Aug	Korean Air
22 Aug - 11 Sep	Korean Air
25 Aug - 01 Sep	Korean Air
20 Aug - 25 Aug	Korean Air
19 Aug - 23 Aug	Asiana Airlines
24 Aug - 04 Sep	Korean Air
31 Aug - 16 Sep	Korean Air
12 Aug - 26 Aug	Asiana Airlines
18 Aug - 27 Aug	Korean Air
17 Aug - 22 Aug	Korean Air
15 Aug - 22 Aug	Korean Air
12 Aug - 19 Aug	Korean Air
15 Aug - 20 Aug	Korean Air
11 Aug - 14 Aug	Korean Air
22 Aug - 05 Sep	Delta

Also check the deals for one-way flights from Seoul to Lima 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 Lima in August from $1574

Return flights