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

Return flights

18 Apr - 30 Apr	AirAsia X
25 Apr - 10 May	Scoot
21 Apr - 06 May	Scoot
20 Apr - 06 May	Scoot
25 Apr - 11 May	Scoot
21 Apr - 06 May	Jetstar	direct
26 Apr - 21 May	Scoot
27 Apr - 21 May	Scoot
14 Apr - 13 May	Jetstar	direct
23 Apr - 09 May	China Southern
27 Apr - 17 May	Jetstar	direct
16 Apr - 28 Apr	Jetstar	direct
22 Apr - 29 Apr	Jetstar	direct
21 Apr - 27 Apr	Jetstar	direct
24 Apr - 28 Apr	Jetstar	direct
13 Apr - 26 Apr	Scoot
10 Apr - 28 Apr	Jetstar	direct
19 Apr - 25 Apr	AirAsia X
18 Apr - 25 Apr	AirAsia X
19 Apr - 30 Apr	AirAsia X

Also check the deals for one-way flights from Sydney to Seoul in April.

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 April from 333€

Return flights