AirHint found the following cheapest return flights from Seattle (SEA) to Rome (FCO) in May 2026 (see full year).

Return flights

04 May - 17 May	Condor
21 May - 28 May	Condor
17 May - 28 May	Condor
21 May - 31 May	Condor
11 May - 19 May	Icelandair
19 May - 26 May	Air Canada
13 May - 24 May	Condor
15 May - 23 May	Scandinavian Airlines
13 May - 20 May	Icelandair
18 May - 25 May	Icelandair
26 May - 09 Jun	Condor
29 May - 04 Jun	Condor
26 May - 06 Jun	Condor
27 May - 11 Jun	Condor
27 May - 12 Jun	Aer Lingus
29 May - 06 Jun	Condor
27 May - 13 Jun	Condor
28 May - 14 Jun	Condor
23 May - 06 Jun	Condor
27 May - 13 Jun	Air France	direct

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

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 May from $487

Return flights