AirHint found the following cheapest one-way flights from Chicago (ORD) to Lisbon (LIS) in February 2026 (see full year).
One-Way flights
| 07 Feb | Spirit Airlines | ||
| 08 Feb | Icelandair | ||
| 06 Feb | Icelandair | ||
| 18 Feb | Spirit Airlines | ||
| 18 Feb | TAP | direct | |
| 13 Feb | Frontier Airlines | ||
| 14 Feb | KLM | ||
| 08 Feb | TAP | direct | |
| 06 Feb | TAP | direct |
Also check the deals for return flights from Chicago to Lisbon in February.
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