AirHint found the following cheapest return flights from Keflavik (KEF) to Vienna (VIE) in October 2025 (see full year).
Return flights
| 23 Oct - 02 Nov | easyJet | ||
| 29 Oct - 01 Nov | Jet2 | ||
| 25 Oct - 02 Nov | Wizz Air | ||
| 25 Oct - 01 Nov | Wizz Air | ||
| 24 Oct - 02 Nov | Finnair |
Also check the deals for one-way flights from Keflavik to Vienna in October.
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