Cheapest one-way flights from Chicago to Madrid in December from 232€

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

One-Way flights

12 Dec Frontier Airlines
08 Dec Frontier Airlines
15 Dec Frontier Airlines
16 Dec Frontier Airlines
14 Dec Frontier Airlines
07 Dec KLM
30 Dec Air France
05 Dec Frontier Airlines
17 Dec Frontier Airlines
19 Dec Porter Airlines (Canada) Ltd

Also check the deals for return flights from Chicago 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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