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

Return flights

05 Sep - 10 Sep	Royal Brunei
05 Sep - 17 Sep	Royal Brunei
11 Sep - 22 Sep	VietJet Air
10 Sep - 22 Sep	AirAsia X
14 Sep - 17 Sep	VietJet Air
03 Sep - 12 Sep	VietJet Air
30 Sep - 15 Oct	Royal Brunei
10 Sep - 21 Sep	VietJet Air
03 Sep - 08 Sep	VietJet Air
02 Sep - 24 Sep	Royal Brunei
09 Sep - 24 Sep	Royal Brunei
29 Sep - 20 Oct	VietJet Air
23 Sep - 15 Oct	Royal Brunei
30 Sep - 27 Oct	VietJet Air
09 Sep - 01 Oct	Royal Brunei
16 Sep - 15 Oct	Royal Brunei
01 Sep - 20 Oct	Scoot
30 Sep - 16 Oct	Scoot
29 Sep - 13 Oct	Scoot
15 Sep - 10 Oct	Scoot

Also check the deals for one-way flights from Melbourne 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 Melbourne to Seoul in September from 366€

Return flights