Cheapest return flights from Washington to Madrid in December from 372€

AirHint found the following cheapest return flights from Washington (IAD) to Madrid (MAD) in December 2026 (see full year).

Return flights

06 Dec - 17 Dec TAP
29 Dec - 12 Jan TAP
07 Dec - 21 Dec TAP
06 Dec - 17 Dec Finnair direct
29 Dec - 12 Jan British Airways direct
10 Dec - 24 Dec TAP
10 Dec - 24 Dec British Airways direct
20 Dec - 12 Jan British Airways direct
22 Dec - 31 Dec British Airways direct
19 Dec - 11 Jan TAP
17 Dec - 27 Dec TAP
18 Dec - 28 Dec TAP
17 Dec - 27 Dec British Airways direct

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

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