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

Return flights

15 Jul - 15 Aug	Icelandair
19 Jul - 13 Aug	Icelandair
29 Jul - 10 Aug	Frontier Airlines
15 Jul - 22 Jul	Frontier Airlines
23 Jul - 10 Aug	Spirit Airlines
09 Jul - 15 Jul	Turkish Airlines
27 Jul - 09 Aug	TAP
18 Jul - 24 Jul	Frontier Airlines
31 Jul - 07 Aug	TAP
18 Jul - 21 Jul	Icelandair
17 Jul - 23 Jul	Icelandair
04 Jul - 07 Jul	TAP
27 Jul - 10 Aug	Icelandair
25 Jul - 01 Aug	Icelandair
22 Jul - 31 Jul	Spirit Airlines
10 Jul - 31 Jul	TAP
04 Jul - 11 Jul	TAP
08 Jul - 20 Jul	Turkish Airlines
31 Jul - 11 Aug	SWISS
26 Jul - 02 Aug	TAP

Also check the deals for one-way flights from Chicago to Amsterdam 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 Chicago to Amsterdam in July from 515€

Return flights