AirHint found the following cheapest return flights from Chicago (ORD) to Madrid (MAD) in August 2026 (see full year).

Return flights

05 Aug - 18 Aug	Air Canada
20 Aug - 03 Sep	TAP
17 Aug - 31 Aug	Finnair	direct
09 Aug - 23 Aug	Finnair	direct
20 Aug - 03 Sep	Finnair	direct
01 Aug - 23 Aug	Finnair	direct
05 Aug - 18 Aug	Finnair	direct

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

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

Cheapest return flights from Chicago to Madrid in August from 396€

Return flights