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

Return flights

15 Oct - 22 Oct	Aer Lingus
19 Oct - 08 Nov	Iberia
30 Oct - 08 Nov	Iberia
23 Oct - 06 Nov	Icelandair
30 Oct - 22 Nov	Iberia
12 Oct - 17 Oct	Condor
20 Oct - 05 Nov	WestJet
05 Oct - 11 Oct	Scandinavian Airlines
08 Oct - 20 Oct	Condor
05 Oct - 25 Oct	Condor
21 Oct - 03 Nov	Alaska Airlines
26 Oct - 09 Nov	WestJet
17 Oct - 08 Nov	Hawaiian Airlines
04 Oct - 13 Oct	British Airways
03 Oct - 10 Oct	Scandinavian Airlines
02 Oct - 25 Oct	Condor
12 Oct - 19 Oct	British Airways
06 Oct - 01 Nov	Turkish Airlines
31 Oct - 14 Nov	Frontier Airlines
18 Oct - 27 Oct	Hawaiian Airlines

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 $479

Return flights