Cheapest return flights from Chicago to Copenhagen in September from $519

Best time to book flights for Chicago (ORD) to Copenhagen (CPH) flights at AirHint

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

Return flights

02 Sep - 16 Sep Icelandair
06 Sep - 13 Sep Icelandair
25 Sep - 06 Oct Icelandair
29 Sep - 13 Oct Icelandair
01 Sep - 08 Sep Scandinavian Airlines direct
02 Sep - 16 Sep Scandinavian Airlines direct
29 Sep - 13 Oct Scandinavian Airlines direct
29 Sep - 06 Oct Icelandair
19 Sep - 26 Sep Icelandair
17 Sep - 24 Sep Delta
03 Sep - 10 Sep Delta
16 Sep - 23 Sep Delta
24 Sep - 01 Oct Delta
16 Sep - 21 Sep Scandinavian Airlines direct
25 Sep - 06 Oct Scandinavian Airlines direct
09 Sep - 16 Sep Scandinavian Airlines direct
29 Sep - 06 Oct Scandinavian Airlines direct
29 Sep - 02 Oct Delta
28 Sep - 01 Oct Delta
30 Sep - 03 Oct Delta

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

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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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