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

Return flights

24 Sep - 29 Oct	British Airways
01 Sep - 11 Sep	easyJet
01 Sep - 16 Sep	easyJet
23 Sep - 28 Oct	easyJet
01 Sep - 06 Sep	easyJet
24 Sep - 10 Oct	British Airways
08 Sep - 21 Sep	Hainan Airlines
01 Sep - 20 Sep	easyJet
01 Sep - 12 Sep	easyJet
10 Sep - 25 Sep	Hainan Airlines
03 Sep - 17 Sep	easyJet
23 Sep - 29 Oct	Finnair
08 Sep - 19 Sep	Hainan Airlines
24 Sep - 28 Oct	Air France
03 Sep - 16 Sep	Lufthansa
27 Sep - 12 Oct	Finnair
27 Sep - 11 Oct	Turkish Airlines
26 Sep - 14 Oct	KLM
24 Sep - 27 Oct	Finnair
20 Sep - 04 Oct	Ryanair

Also check the deals for one-way flights from Edinburgh 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 Edinburgh to Seoul in September from $748

Return flights