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

Return flights

12 Sep - 23 Sep	Hainan Airlines
19 Sep - 21 Sep	Hainan Airlines
16 Sep - 21 Sep	easyJet
12 Sep - 25 Sep	Hainan Airlines
08 Sep - 21 Sep	easyJet
02 Sep - 08 Sep	Ryanair
10 Sep - 16 Sep	easyJet
05 Sep - 16 Sep	Ryanair
03 Sep - 17 Sep	Ryanair
11 Sep - 18 Sep	British Airways
23 Sep - 02 Oct	easyJet
20 Sep - 04 Oct	Hainan Airlines
25 Sep - 04 Oct	China Eastern
19 Sep - 03 Oct	Hainan Airlines
25 Sep - 03 Oct	Ryanair
23 Sep - 16 Oct	Lufthansa
23 Sep - 15 Oct	Lufthansa

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 623€

Return flights