Cheapest return flights from Washington (IAD) to Madrid (MAD), December

20 dates in December, from $ 364. Book in one tap, or check whether to buy now or wait.

One-wayReturn
Dates, airline, and price
Dates Airline Price
9 Dec 15 Dec Iberia
Direct Flight
1 Dec 9 Dec Iberia
Direct Flight
1 Dec 11 Dec Finnair
Direct Flight
2 Dec 10 Dec American Airlines
Direct Flight
7 Dec 15 Dec Finnair
Direct Flight
2 Dec 8 Dec Iberia
Direct Flight
9 Dec 16 Dec Finnair
Direct Flight
8 Dec 16 Dec American Airlines
Direct Flight
1 Dec 8 Dec American Airlines
Direct Flight
2 Dec 9 Dec American Airlines
Direct Flight
29 Dec 20 Jan 2027 Air Canada
30 Dec 20 Jan 2027 Lufthansa
30 Dec 12 Jan 2027 SWISS
29 Dec 19 Jan 2027 SWISS
29 Dec 12 Jan 2027 SWISS
30 Dec 10 Jan 2027 SWISS
27 Dec 9 Jan 2027 Air Canada
28 Dec 11 Jan 2027 Air Canada
13 Dec 8 Jan 2027 Lufthansa
28 Dec 10 Jan 2027 Air Canada
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Updated Oct 10, 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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