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

Return flights

08 Sep - 17 Sep	Lufthansa
17 Sep - 24 Sep	Lufthansa
09 Sep - 16 Sep	Air Canada
30 Sep - 07 Oct	Air Canada
11 Sep - 23 Sep	Lufthansa
22 Sep - 29 Sep	Lufthansa
06 Sep - 14 Sep	Air Canada
22 Sep - 28 Sep	Air Canada
16 Sep - 21 Sep	Lufthansa
11 Sep - 14 Sep	Lufthansa
07 Sep - 27 Sep	Air Canada
27 Sep - 18 Oct	Lufthansa
22 Sep - 18 Oct	Lufthansa
24 Sep - 18 Oct	Lufthansa
10 Sep - 04 Oct	Air Canada
29 Sep - 25 Oct	Air Canada
24 Sep - 01 Oct	Air Canada
26 Sep - 18 Oct	Air Canada
28 Sep - 05 Oct	Air Canada
27 Sep - 04 Oct	Air Canada

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 $435

Return flights