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

Return flights

07 Oct - 21 Oct	AirAsia X
20 Oct - 12 Nov	AirAsia X
01 Oct - 07 Oct	Scoot
20 Oct - 24 Oct	Jetstar	direct
05 Oct - 12 Oct	Scoot
01 Oct - 10 Oct	Scoot
06 Oct - 13 Oct	Scoot
01 Oct - 22 Oct	Jetstar
06 Oct - 20 Oct	Jetstar
02 Oct - 18 Oct	Jetstar	direct
04 Oct - 16 Oct	Jetstar	direct
27 Oct - 17 Nov	Cathay Pacific
26 Oct - 17 Nov	Cathay Pacific
26 Oct - 20 Nov	Cathay Pacific
19 Oct - 15 Nov	Cathay Pacific
19 Oct - 08 Nov	China Airlines
25 Oct - 10 Nov	China Airlines
24 Oct - 07 Nov	Qantas
31 Oct - 07 Nov	Qantas
05 Oct - 20 Nov	Philippine Airlines

Also check the deals for one-way flights from Sydney to Seoul 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 Sydney to Seoul in October from 317€

Return flights