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

Return flights

09 Sep - 23 Sep	Lufthansa
06 Sep - 11 Sep	China Airlines
18 Sep - 25 Sep	China Southern
07 Sep - 18 Sep	Lufthansa
21 Sep - 26 Sep	Etihad Airways
17 Sep - 27 Sep	Etihad Airways
20 Sep - 27 Sep	Air India
25 Sep - 30 Sep	Air India
25 Sep - 01 Oct	Air India
24 Sep - 08 Oct	Air India
19 Sep - 03 Oct	Etihad Airways
25 Sep - 01 Oct	Korean Air	direct
22 Sep - 29 Sep	KLM
24 Sep - 03 Oct	KLM
22 Sep - 29 Sep	KLM	direct
24 Sep - 10 Oct	Singapore Airlines
24 Sep - 08 Oct	KLM	direct
24 Sep - 03 Oct	Korean Air	direct
22 Sep - 03 Oct	Air Canada
19 Sep - 03 Oct	Korean Air	direct

Also check the deals for one-way flights from Seoul to Amsterdam 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 Seoul to Amsterdam in September from 676€

Return flights