Cheapest return flights from Seattle to Rome in December from $577

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

Return flights

30 Dec - 25 Jan Air France
28 Dec - 13 Jan Lufthansa
25 Dec - 12 Jan Icelandair
25 Dec - 06 Jan Air France
27 Dec - 04 Jan Condor
28 Dec - 19 Jan Delta
28 Dec - 04 Jan Lufthansa
27 Dec - 02 Jan Alaska Airlines
26 Dec - 03 Jan Air Canada

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

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