AirHint found the following cheapest one-way flights from Cologne (CGN) to Vienna (VIE) in September 2026 (see full year).
One-Way flights
| 17 Sep | Ryanair | direct | |
| 01 Sep | Ryanair | direct | |
| 03 Sep | Ryanair | direct | |
| 25 Sep | Eurowings | direct | |
| 11 Sep | Eurowings | direct | |
| 20 Sep | Ryanair | direct | |
| 12 Sep | Pegasus Airlines | ||
| 12 Sep | Eurowings | direct |
Also check the deals for return flights from Cologne to Vienna in September.
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