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

Return flights

25 Sep - 22 Oct	Hainan Airlines
22 Sep - 16 Oct	Hainan Airlines
23 Sep - 16 Oct	Hainan Airlines
24 Sep - 16 Oct	Hainan Airlines
26 Sep - 23 Oct	Ryanair
24 Sep - 09 Oct	Air France
21 Sep - 28 Oct	easyJet
26 Sep - 16 Oct	Ryanair
26 Sep - 12 Oct	Ryanair
22 Sep - 29 Sep	Ryanair
21 Sep - 25 Oct	easyJet
24 Sep - 29 Sep	Ryanair
22 Sep - 27 Sep	Ryanair
08 Sep - 28 Sep	Ryanair
08 Sep - 20 Sep	Ryanair
12 Sep - 23 Sep	Ryanair
17 Sep - 22 Sep	easyJet
09 Sep - 21 Sep	Ryanair
20 Sep - 25 Sep	Ryanair
13 Sep - 21 Sep	Ryanair

Also check the deals for one-way flights from Manchester 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 Manchester to Seoul in September from $715

Return flights