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 2025 (see full year).

Return flights

02 Dec - 16 Dec Delta
03 Dec - 09 Dec Delta
03 Dec - 10 Dec Iberia
06 Dec - 15 Dec Air Canada
28 Dec - 08 Jan SWISS
12 Dec - 12 Jan SWISS
09 Dec - 16 Dec Iberia direct
12 Dec - 13 Jan British Airways
06 Dec - 12 Dec Aer Lingus
12 Dec - 19 Dec SWISS
07 Dec - 27 Dec Air Canada
28 Dec - 17 Jan SWISS
30 Dec - 07 Jan Air Canada
02 Dec - 16 Dec Iberia direct
14 Dec - 13 Jan British Airways direct
23 Dec - 15 Jan Air Canada
06 Dec - 15 Dec United direct
13 Dec - 13 Jan Icelandair
26 Dec - 17 Jan Lufthansa
24 Dec - 17 Jan KLM

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.

Book a cheap hotel in Madrid

Cheap car rent in Madrid

Feel free to contact us with any feedback or request another flight research.