AirHint found the following cheapest return flights from Seattle (SEA) to Milano (MXP) in August 2025 (see full year).

Return flights

25 Aug - 10 Sep	Scandinavian Airlines
20 Aug - 29 Aug	Scandinavian Airlines
31 Aug - 08 Sep	Scandinavian Airlines
14 Aug - 29 Aug	Condor
25 Aug - 05 Sep	Condor
24 Aug - 31 Aug	Icelandair
27 Aug - 07 Sep	Icelandair
17 Aug - 24 Aug	Condor
08 Aug - 14 Aug	Icelandair
02 Aug - 09 Aug	Icelandair

Also check the deals for one-way flights from Seattle to Milano in August.

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 Seattle to Milano in August from 444€

Return flights