AirHint found the following cheapest one-way flights from Chicago (ORD) to Vienna (VIE) in May 2026 (see full year).
One-Way flights
| 05 May | Icelandair | ||
| 06 May | Icelandair | ||
| 07 May | Icelandair | ||
| 10 May | Icelandair | ||
| 09 May | Spirit Airlines | ||
| 12 May | LOT | ||
| 13 May | LOT | ||
| 05 May | Austrian Airlines | direct | |
| 11 May | United | direct | |
| 12 May | United | direct |
Also check the deals for return flights from Chicago to Vienna in May.
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