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

Return flights

05 May - 25 May	Condor
06 May - 26 May	Condor
06 May - 25 May	Condor
11 May - 25 May	Icelandair
06 May - 30 May	Condor
09 May - 20 May	Icelandair
07 May - 21 May	Icelandair
11 May - 06 Jun	Icelandair
10 May - 24 May	Icelandair
11 May - 23 May	Icelandair
03 May - 23 May	Icelandair
13 May - 06 Jun	Icelandair
25 May - 08 Jun	Condor
27 May - 03 Jun	Icelandair

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 484€

Return flights