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

Return flights

08 Sep - 17 Sep	Icelandair
01 Sep - 16 Sep	Icelandair
16 Sep - 23 Sep	Icelandair
19 Sep - 28 Sep	Icelandair
22 Sep - 26 Sep	Icelandair
24 Sep - 28 Sep	Icelandair
12 Sep - 14 Sep	Icelandair
28 Sep - 02 Oct	Icelandair
25 Sep - 02 Oct	Icelandair
18 Sep - 06 Oct	Icelandair
09 Sep - 24 Sep	Icelandair
05 Sep - 12 Sep	Icelandair
19 Sep - 24 Sep	Icelandair
28 Sep - 02 Oct	Scandinavian Airlines	direct
26 Sep - 03 Oct	Icelandair
25 Sep - 02 Oct	Scandinavian Airlines	direct
18 Sep - 06 Oct	Scandinavian Airlines	direct
30 Sep - 07 Oct	Delta	direct
29 Sep - 02 Oct	Delta
26 Sep - 03 Oct	Scandinavian Airlines	direct

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

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 New York to Copenhagen in September from $419

Return flights