AirHint found the following cheapest one-way flights from Chicago (ORD) to Vienna (VIE) in January 2026 (see full year).
One-Way flights
| 31 Jan | Spirit Airlines | ||
| 10 Jan | Frontier Airlines | ||
| 05 Jan | Spirit Airlines | ||
| 04 Jan | Lufthansa | ||
| 05 Jan | Austrian Airlines | direct | |
| 10 Jan | Austrian Airlines | direct |
Also check the deals for return flights from Chicago to Vienna in January.
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