Cheapest return flights from Chicago to Madrid in September from 516€

Best time to book flights for Chicago (ORD) to Madrid (MAD) flights at AirHint

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

Return flights

25 Sep - 02 Oct TAP
28 Sep - 05 Oct TAP
18 Sep - 22 Sep Turkish Airlines
25 Sep - 06 Oct Turkish Airlines
23 Sep - 10 Oct Turkish Airlines
07 Sep - 21 Sep Turkish Airlines
25 Sep - 05 Oct TAP
17 Sep - 01 Oct Turkish Airlines
11 Sep - 20 Sep Turkish Airlines
13 Sep - 26 Sep Turkish Airlines
18 Sep - 05 Oct Turkish Airlines
18 Sep - 25 Sep TAP
18 Sep - 25 Sep Finnair direct
25 Sep - 02 Oct Finnair direct
01 Sep - 08 Sep SWISS
27 Sep - 06 Oct SWISS
08 Sep - 15 Sep TAP
26 Sep - 04 Oct Finnair direct
01 Sep - 15 Sep Finnair
18 Sep - 22 Sep British Airways direct

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

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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