AirHint found the following cheapest one-way flights from Chicago (ORD) to Madrid (MAD) in March 2026 (see full year).
One-Way flights
| 01 Mar | Spirit Airlines | ||
| 22 Mar | Aer Lingus | ||
| 25 Mar | TAP | ||
| 27 Mar | Aer Lingus | ||
| 06 Mar | TAP | ||
| 20 Mar | Scandinavian Airlines | ||
| 13 Mar | TAP | ||
| 02 Mar | Iberia | ||
| 03 Mar | Iberia | ||
| 23 Mar | Iberia |
Also check the deals for return flights from Chicago to Madrid in March.
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