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

Return flights

23 Sep - 04 Oct	Scandinavian Airlines
24 Sep - 01 Oct	Iberia
16 Sep - 01 Oct	Air Canada
22 Sep - 04 Oct	Scandinavian Airlines
09 Sep - 16 Sep	Air Canada
26 Sep - 03 Oct	KLM
22 Sep - 29 Sep	jetBlue
25 Sep - 02 Oct	Delta
23 Sep - 05 Oct	Scandinavian Airlines
24 Sep - 29 Sep	Air Canada
08 Sep - 15 Sep	Air Canada
27 Sep - 04 Oct	Air France
11 Sep - 25 Sep	KLM
09 Sep - 13 Sep	jetBlue
29 Sep - 05 Oct	Scandinavian Airlines
28 Sep - 05 Oct	jetBlue
18 Sep - 23 Sep	British Airways
15 Sep - 30 Sep	Iberia
10 Sep - 15 Sep	jetBlue
18 Sep - 21 Sep	Air Canada

Also check the deals for one-way flights from Washington 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 Washington to Milano in September from $450

Return flights