Cheapest return flights from Chicago to Madrid in December from 326€

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

Return flights

03 Dec - 10 Dec TAP
03 Dec - 13 Dec TAP
03 Dec - 11 Dec TAP
01 Dec - 09 Dec British Airways
03 Dec - 10 Dec Iberia direct
02 Dec - 09 Dec Iberia direct
01 Dec - 09 Dec Iberia direct
05 Dec - 12 Dec TAP
09 Dec - 16 Dec Iberia
09 Dec - 18 Dec Aer Lingus
30 Dec - 16 Jan Air Canada
28 Dec - 17 Jan KLM
10 Dec - 10 Jan Air Canada
29 Dec - 14 Jan Lufthansa
30 Dec - 08 Jan SWISS
13 Dec - 23 Jan Aer Lingus
12 Dec - 11 Jan Icelandair
30 Dec - 12 Jan United
10 Dec - 09 Jan Frontier Airlines
12 Dec - 09 Jan Icelandair

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

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