AirHint found the following cheapest return flights from San Francisco (SFO) to Copenhagen (CPH) in August 2025 (see full year).

Return flights

19 Aug - 26 Aug	United
04 Aug - 14 Aug	British Airways
05 Aug - 27 Aug	Delta
14 Aug - 27 Aug	TAP
06 Aug - 28 Aug	Air France
11 Aug - 19 Aug	Air France
14 Aug - 20 Aug	United
25 Aug - 01 Sep	United
27 Aug - 17 Sep	Frontier Airlines
14 Aug - 20 Aug	Scandinavian Airlines	direct
14 Aug - 27 Aug	Scandinavian Airlines	direct
13 Aug - 20 Aug	Scandinavian Airlines
30 Aug - 06 Sep	United
29 Aug - 07 Sep	British Airways
27 Aug - 03 Sep	Scandinavian Airlines
29 Aug - 07 Sep	Scandinavian Airlines	direct

Also check the deals for one-way flights from San Francisco to Copenhagen in August.

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 San Francisco to Copenhagen in August from 455€

Return flights