Cheapest one-way flights from Chicago to Madrid in December from 220€

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

One-Way flights

08 Dec Spirit Airlines
10 Dec Icelandair
09 Dec Icelandair
03 Dec Frontier Airlines
31 Dec Icelandair
01 Dec Icelandair
11 Dec Spirit Airlines
12 Dec Frontier Airlines
14 Dec Spirit Airlines
29 Dec Lufthansa

Also check the deals for return flights from Chicago to Madrid in December.

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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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