AirHint found the following cheapest one-way flights from Chicago (ORD) to Barcelona (BCN) in March 2026 (see full year).
One-Way flights
| 03 Mar | Spirit Airlines | ||
| 15 Mar | TAP | ||
| 24 Mar | Frontier Airlines | ||
| 18 Mar | TAP | ||
| 22 Mar | Delta | ||
| 28 Mar | Air Serbia | ||
| 26 Mar | Turkish Airlines |
Also check the deals for return flights from Chicago to Barcelona in March.
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