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

Return flights

09 Sep - 16 Sep	Jetstar
09 Sep - 21 Oct	Jetstar
11 Sep - 21 Sep	Jetstar
09 Sep - 14 Sep	Jetstar
11 Sep - 16 Sep	Jetstar
23 Sep - 14 Oct	Jetstar
10 Sep - 16 Sep	Jetstar
08 Sep - 15 Sep	Jetstar
05 Sep - 14 Sep	Jetstar
10 Sep - 14 Sep	Jetstar
08 Sep - 14 Sep	Jetstar
03 Sep - 10 Sep	Jetstar
24 Sep - 15 Oct	Jetstar
16 Sep - 23 Oct	Jetstar
15 Sep - 09 Oct	Jetstar
03 Sep - 16 Oct	Jetstar
16 Sep - 24 Oct	Jetstar
23 Sep - 31 Oct	Jetstar
15 Sep - 25 Oct	Jetstar
30 Sep - 20 Oct	Jetstar

Also check the deals for one-way flights from Avalon 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 Avalon to Seoul in September from 433€

Return flights