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

Return flights

26 Aug - 09 Sep	Condor
11 Aug - 15 Aug	Condor
18 Aug - 03 Sep	Condor
19 Aug - 22 Aug	Condor
11 Aug - 20 Aug	Condor
20 Aug - 27 Aug	Icelandair
22 Aug - 29 Aug	Icelandair
24 Aug - 14 Sep	Condor
24 Aug - 31 Aug	Icelandair
04 Aug - 18 Aug	Icelandair
22 Aug - 31 Aug	Icelandair
16 Aug - 30 Aug	Icelandair
05 Aug - 16 Aug	Condor
17 Aug - 27 Sep	Condor
27 Aug - 03 Sep	Condor
20 Aug - 01 Sep	Condor
23 Aug - 08 Sep	Condor
28 Aug - 07 Sep	Icelandair
28 Aug - 18 Sep	Condor
28 Aug - 04 Sep	Icelandair

Also check the deals for one-way flights from Seattle to Rome 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 Rome in August from 426€

Return flights