Cheapest return flights from Chicago to Copenhagen in September from 404€

AirHint found the following cheapest return flights from Chicago (ORD) to Copenhagen (CPH) in September 2025 (see full year).

Return flights

05 Sep - 12 Sep Icelandair
07 Sep - 14 Sep Icelandair
05 Sep - 19 Sep Icelandair
17 Sep - 24 Sep Icelandair
29 Sep - 06 Oct Scandinavian Airlines direct
15 Sep - 21 Sep Austrian Airlines
15 Sep - 29 Sep SWISS
15 Sep - 22 Sep SWISS
09 Sep - 16 Sep United
11 Sep - 18 Sep United
15 Sep - 11 Oct Scandinavian Airlines direct
16 Sep - 22 Sep British Airways
11 Sep - 04 Oct United
25 Sep - 02 Oct United

Also check the deals for one-way flights from Chicago to Copenhagen in September.

Skyscanner

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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