AirHint found the following cheapest return flights from Chicago (ORD) to Amsterdam (AMS) in May 2026 (see full year).

Return flights

06 May - 12 May	TAP
06 May - 12 May	Delta	direct
01 May - 31 May	TAP
12 May - 21 May	Aer Lingus
19 May - 26 May	Aer Lingus
20 May - 08 Jun	Aer Lingus
27 May - 02 Jun	Icelandair
28 May - 02 Jun	Icelandair
02 May - 09 May	Icelandair
07 May - 14 May	Icelandair
12 May - 19 May	Icelandair
12 May - 21 May	Delta	direct
17 May - 24 May	Icelandair
27 May - 03 Jun	Icelandair
20 May - 08 Jun	Delta	direct
27 May - 02 Jun	Lufthansa	direct
28 May - 02 Jun	Lufthansa	direct

Also check the deals for one-way flights from Chicago to Amsterdam in May.

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 May from $518

Return flights