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

Return flights

07 Sep - 10 Sep	Condor
07 Sep - 18 Sep	Condor
24 Sep - 08 Oct	Condor
21 Sep - 08 Oct	Condor
24 Sep - 20 Oct	Condor
08 Sep - 17 Sep	Condor
07 Sep - 09 Sep	Condor
24 Sep - 09 Oct	Condor
24 Sep - 01 Oct	Air Canada
14 Sep - 24 Sep	Iberia
24 Sep - 06 Oct	Condor
27 Sep - 07 Oct	British Airways
16 Sep - 19 Sep	Condor
20 Sep - 21 Oct	British Airways
04 Sep - 16 Sep	British Airways
16 Sep - 22 Sep	SWISS
11 Sep - 25 Sep	British Airways
15 Sep - 01 Oct	Scandinavian Airlines
14 Sep - 24 Sep	ITA Airways	direct
25 Sep - 06 Oct	Condor

Also check the deals for one-way flights from San Francisco to Rome 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 San Francisco to Rome in September from $470

Return flights