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

Return flights

16 Sep - 23 Sep	United
30 Sep - 07 Oct	United
08 Sep - 15 Sep	United
09 Sep - 11 Oct	Lufthansa
26 Sep - 29 Sep	Austrian Airlines
29 Sep - 06 Oct	United
10 Sep - 17 Sep	United
07 Sep - 27 Sep	Austrian Airlines
11 Sep - 18 Sep	United
25 Sep - 02 Oct	United
24 Sep - 01 Oct	United
09 Sep - 16 Sep	United
09 Sep - 23 Sep	Lufthansa
23 Sep - 30 Sep	United
08 Sep - 04 Oct	United
15 Sep - 22 Sep	United
17 Sep - 05 Oct	Lufthansa
28 Sep - 05 Oct	United

Also check the deals for one-way flights from San Diego 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 Diego to Milano in September from 553€

Return flights