AirHint found the following cheapest return flights from Sydney (SYD) to Seoul (ICN) in September 2026 (see full year).

Return flights

07 Sep - 16 Sep	Jetstar	direct
04 Sep - 11 Sep	Jetstar	direct
10 Sep - 16 Sep	Jetstar	direct
03 Sep - 10 Sep	Jetstar	direct
07 Sep - 07 Oct	VietJet Air
05 Sep - 03 Oct	VietJet Air
01 Sep - 03 Oct	Scoot
01 Sep - 20 Sep	VietJet Air
12 Sep - 23 Sep	VietJet Air
19 Sep - 05 Oct	Cebu Pacific
13 Sep - 03 Oct	Cebu Pacific
13 Sep - 07 Oct	Cebu Pacific
26 Sep - 09 Oct	Cebu Pacific
26 Sep - 01 Oct	Cebu Pacific
11 Sep - 22 Sep	Jetstar
21 Sep - 05 Oct	Cebu Pacific
25 Sep - 10 Oct	Cebu Pacific
01 Sep - 20 Sep	Jetstar	direct
12 Sep - 23 Sep	Jetstar	direct
11 Sep - 22 Sep	Korean Air	direct

Also check the deals for one-way flights from Sydney 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 Sydney to Seoul in September from 356€

Return flights