Cheapest return flights from Frankfurt to San Francisco in September from $528

Best time to book flights for Frankfurt (FRA) to San Francisco (SFO) flights at AirHint

AirHint found the following cheapest return flights from Frankfurt (FRA) to San Francisco (SFO) in September 2025 (see full year).

Return flights

16 Sep - 29 Sep Iberia
10 Sep - 30 Sep Iberia
18 Sep - 29 Sep Iberia
18 Sep - 30 Sep Iberia
24 Sep - 30 Sep British Airways
30 Sep - 10 Oct British Airways
18 Sep - 06 Oct Iberia
25 Sep - 09 Oct British Airways
25 Sep - 07 Oct British Airways
25 Sep - 15 Oct British Airways
24 Sep - 13 Oct British Airways
24 Sep - 11 Oct British Airways
28 Sep - 17 Oct British Airways
24 Sep - 12 Oct British Airways
25 Sep - 12 Oct British Airways
17 Sep - 24 Sep Iberia
10 Sep - 18 Sep British Airways
09 Sep - 23 Sep British Airways
10 Sep - 24 Sep Iberia
03 Sep - 17 Sep British Airways

Also check the deals for one-way flights from Frankfurt to San Francisco in September.

Skyscanner

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 San Francisco

Cheap car rent in San Francisco