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

Return flights

24 Sep - 06 Oct	TAP
09 Sep - 23 Sep	TAP
16 Sep - 23 Sep	TAP
10 Sep - 24 Sep	British Airways
03 Sep - 10 Sep	British Airways
29 Sep - 10 Oct	British Airways
17 Sep - 24 Sep	British Airways
17 Sep - 28 Sep	Scandinavian Airlines
01 Sep - 08 Sep	Air Canada
07 Sep - 21 Sep	Scandinavian Airlines
02 Sep - 09 Sep	Air Canada
11 Sep - 21 Sep	Turkish Airlines

Also check the deals for one-way flights from San Francisco to Milano 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 Milano in September from $415

Return flights