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

Return flights

10 Aug - 26 Aug	Air Canada
13 Aug - 20 Aug	SWISS
12 Aug - 26 Aug	Austrian Airlines
19 Aug - 26 Aug	United
12 Aug - 09 Sep	SWISS
27 Aug - 17 Sep	United
11 Aug - 19 Aug	SWISS
11 Aug - 18 Aug	Air Canada
25 Aug - 08 Sep	Frontier Airlines
08 Aug - 15 Aug	SWISS
05 Aug - 27 Aug	Delta
10 Aug - 17 Aug	Air Canada
07 Aug - 14 Aug	SWISS
25 Aug - 01 Sep	United
28 Aug - 04 Sep	United
29 Aug - 07 Sep	Austrian Airlines

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.

Book a cheap hotel in Copenhagen

Cheap car rent in Copenhagen

Cheapest return flights from San Francisco to Copenhagen in August from 446€

Return flights