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Cheapest one-way flights from Washington (IAD) to Rome (FCO), December

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Dates, airline, and price
Dates	Airline	Price
12 Dec	Icelandair
17 Dec	Aer Lingus
16 Dec	TAP
02 Dec	United Direct Flight
12 Dec	United Direct Flight
16 Dec	United Direct Flight
17 Dec	ITA Airways Direct Flight

deals for return flights from Washington to Rome in December.

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Updated Jul 16, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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Cheapest one-way flights from Washington (IAD) to Rome (FCO), December

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