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

Return flights

15 Oct - 17 Oct	Condor
07 Oct - 22 Oct	Condor
13 Oct - 22 Oct	Condor
12 Oct - 19 Oct	Condor
30 Oct - 13 Nov	Icelandair
24 Oct - 05 Nov	Icelandair
04 Oct - 13 Oct	Condor
24 Oct - 07 Nov	Aer Lingus
27 Oct - 10 Nov	British Airways
03 Oct - 10 Oct	Condor
15 Oct - 22 Oct	Icelandair
29 Oct - 05 Nov	United
18 Oct - 25 Oct	Icelandair
08 Oct - 16 Oct	Scandinavian Airlines
06 Oct - 13 Oct	Icelandair

Also check the deals for one-way flights from Seattle to Rome in October.

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 October from 384€

Return flights