AirHint found the following cheapest one-way flights from Chicago (ORD) to Madrid (MAD) in March 2026 (see full year).
One-Way flights
| 15 Mar | TAP | ||
| 22 Mar | TAP | ||
| 13 Mar | TAP | ||
| 19 Mar | Scandinavian Airlines | ||
| 26 Mar | Scandinavian Airlines | ||
| 23 Mar | Air Canada | ||
| 15 Mar | British Airways | direct | |
| 14 Mar | Air Canada | ||
| 21 Mar | Air Canada | ||
| 21 Mar | Iberia | direct |
Also check the deals for return flights from Chicago to Madrid in March.
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