Cheapest return flights from Washington to Madrid in December from 321€

AirHint found the following cheapest return flights from Washington (IAD) to Madrid (MAD) in December 2025 (see full year).

Return flights

04 Dec - 11 Dec TAP
04 Dec - 11 Dec Iberia direct
30 Dec - 13 Jan Air Canada
30 Dec - 13 Jan Finnair direct
12 Dec - 28 Dec Air Canada
27 Dec - 15 Jan Delta
24 Dec - 31 Dec Lufthansa
14 Dec - 21 Dec United
14 Dec - 21 Dec Iberia direct
25 Dec - 01 Jan Lufthansa
25 Dec - 04 Jan TAP
22 Dec - 02 Jan Lufthansa
23 Dec - 19 Jan Delta
23 Dec - 04 Jan TAP
21 Dec - 28 Dec Lufthansa
18 Dec - 07 Jan TAP
23 Dec - 07 Jan TAP
20 Dec - 27 Dec Lufthansa
21 Dec - 28 Dec Iberia direct

Also check the deals for one-way flights from Washington to Madrid in December.

Skyscanner

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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