Cheapest return flights from Washington (IAD) to Lisbon (LIS), December

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
24 Dec 30 Dec Iberia
13 Dec 20 Dec Royal Air Maroc
21 Dec 28 Dec Royal Air Maroc
27 Dec 06 Jan Lufthansa
13 Dec 20 Dec TAP
Direct Flight
24 Dec 01 Jan Iberia
27 Dec 06 Jan TAP
Direct Flight
22 Dec 29 Dec TAP
Direct Flight
24 Dec 04 Jan Iberia
21 Dec 28 Dec TAP
Direct Flight
24 Dec 30 Dec TAP
Direct Flight
22 Dec 06 Jan TAP
Direct Flight
17 Dec 26 Dec Iberia
22 Dec 04 Jan Lufthansa
17 Dec 26 Dec TAP
Direct Flight
19 Dec 26 Dec TAP
Direct Flight
25 Dec 01 Jan TAP
Direct Flight
24 Dec 04 Jan TAP
Direct Flight
22 Dec 04 Jan TAP
Direct Flight
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Updated Jun 29, 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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