Cheapest return STN–ICN flights, September

AirHint found the following cheapest return flights from London (STN) to Seoul (ICN) in September 2026 (see full year).

Return flights

01 Sep - 09 Sep Ryanair
12 Sep - 21 Sep AJet
13 Sep - 21 Sep Pegasus Airlines
08 Sep - 21 Sep Ryanair
12 Sep - 22 Sep Pegasus Airlines
17 Sep - 08 Oct Ryanair
12 Sep - 20 Sep Pegasus Airlines
01 Sep - 16 Sep Ryanair
06 Sep - 21 Sep Pegasus Airlines
01 Sep - 20 Oct Ryanair
23 Sep - 08 Oct Ryanair
04 Sep - 17 Sep Ryanair
15 Sep - 17 Sep Ryanair
15 Sep - 08 Oct Ryanair
19 Sep - 18 Oct Ryanair
19 Sep - 11 Oct Ryanair
11 Sep - 12 Oct Ryanair
28 Sep - 21 Oct Ryanair
12 Sep - 09 Oct Ryanair
30 Sep - 19 Oct Ryanair

Also check the deals for one-way flights from London to Seoul in September.

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