Cheapest return ICN–MAD flights, September

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

Return flights

08 Sep - 23 Sep Air China
11 Sep - 17 Sep Air China
01 Sep - 09 Sep Air China
09 Sep - 15 Sep Air China
09 Sep - 16 Sep Air China
10 Sep - 17 Sep Air China
08 Sep - 18 Sep Air China
04 Sep - 11 Sep Air China
10 Sep - 19 Sep Air China
01 Sep - 10 Sep Air China
16 Sep - 03 Oct Air China
17 Sep - 03 Oct Air China
17 Sep - 02 Oct Air China
04 Sep - 15 Oct Air China
02 Sep - 13 Oct Air China
17 Sep - 01 Oct China Southern
28 Sep - 07 Oct Emirates
28 Sep - 06 Oct Emirates
24 Sep - 01 Oct Etihad Airways
24 Sep - 05 Oct Etihad Airways

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

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