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

Return flights

29 Sep - 06 Oct	Scandinavian Airlines	direct
07 Sep - 17 Sep	Delta
02 Sep - 09 Sep	Delta
03 Sep - 10 Sep	Delta
09 Sep - 16 Sep	Delta
10 Sep - 17 Sep	Delta
07 Sep - 17 Sep	Scandinavian Airlines	direct
23 Sep - 30 Sep	Scandinavian Airlines	direct
08 Sep - 15 Sep	Scandinavian Airlines	direct
17 Sep - 24 Sep	Delta
16 Sep - 23 Sep	Delta
16 Sep - 02 Oct	Delta
24 Sep - 01 Oct	Delta
30 Sep - 07 Oct	Delta
29 Sep - 13 Oct	Delta
01 Sep - 01 Oct	KLM
27 Sep - 10 Oct	Delta
01 Sep - 03 Oct	British Airways
01 Sep - 02 Oct	British Airways
16 Sep - 02 Oct	Scandinavian Airlines	direct

Also check the deals for one-way flights from Los Angeles 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 Los Angeles to Copenhagen in September from 397€

Return flights