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

Return flights

29 Jul - 12 Aug	Lufthansa
27 Jul - 12 Aug	Lufthansa
27 Jul - 13 Aug	Lufthansa
29 Jul - 13 Aug	Lufthansa
29 Jul - 19 Aug	Lufthansa
30 Jul - 13 Aug	Lufthansa
29 Jul - 14 Aug	Lufthansa
29 Jul - 16 Aug	Lufthansa
27 Jul - 14 Aug	Lufthansa
30 Jul - 10 Aug	Lufthansa
28 Jul - 31 Jul	KLM
28 Jul - 31 Jul	KLM	direct

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

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 Amsterdam to Seoul in July from 636€

Return flights