AirHint found the following cheapest one-way flights from Chicago (MDW) to Amsterdam (AMS) in August 2025 (see full year).

One-Way flights

19 Aug	Porter Airlines (Canada) Ltd
29 Aug	Porter Airlines (Canada) Ltd
28 Aug	Porter Airlines (Canada) Ltd
11 Aug	Frontier Airlines
03 Aug	Frontier Airlines
17 Aug	Porter Airlines (Canada) Ltd
15 Aug	Porter Airlines (Canada) Ltd
18 Aug	Air France
10 Aug	Air France
01 Aug	Air France

Also check the deals for return flights from Chicago 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 one-way flights from Chicago to Amsterdam in August from 302€

One-Way flights