AirHint found the following cheapest one-way flights from Chicago (ORD) to Barcelona (BCN) in October 2026 (see full year).
One-Way flights
| 20 Oct | Spirit Airlines | ||
| 27 Oct | Spirit Airlines | ||
| 20 Oct | Iberia | direct | |
| 22 Oct | Icelandair | ||
| 22 Oct | Iberia | direct | |
| 27 Oct | United | direct |
Also check the deals for return flights from Chicago to Barcelona in October.
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