AirHint found the following cheapest return flights from Seoul (GMP) to Amsterdam (AMS) in August 2025 (see full year).

Return flights

20 Aug - 27 Aug	China Southern
19 Aug - 26 Aug	China Southern
19 Aug - 24 Aug	China Southern
22 Aug - 29 Aug	China Southern
26 Aug - 31 Aug	China Southern
27 Aug - 31 Aug	China Southern
31 Aug - 10 Sep	China Southern
27 Aug - 05 Sep	China Southern
27 Aug - 02 Sep	China Southern
27 Aug - 01 Sep	China Southern
31 Aug - 25 Sep	China Southern
27 Aug - 30 Aug	China Southern
18 Aug - 26 Aug	Air China
17 Aug - 01 Sep	Air China
25 Aug - 02 Sep	Japan Airlines
25 Aug - 29 Aug	Japan Airlines
18 Aug - 29 Aug	Japan Airlines
29 Aug - 04 Sep	EVA Air
31 Aug - 06 Sep	Japan Airlines
28 Aug - 06 Sep	Japan Airlines

Also check the deals for one-way flights from Seoul to Amsterdam in August.

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 August from 514€

Return flights