AirHint found the following cheapest one-way flights from Frankfurt (FRA) to Keflavik (KEF) in September 2026 (see full year).
One-Way flights
| 23 Sep | Ryanair | ||
| 01 Sep | Ryanair | ||
| 24 Sep | Ryanair | ||
| 05 Sep | Lufthansa | ||
| 22 Sep | Lufthansa | ||
| 28 Sep | Air France | ||
| 26 Sep | Lufthansa | ||
| 27 Sep | easyJet | ||
| 11 Sep | Scandinavian Airlines | ||
| 21 Sep | Air France |
Also check the deals for return flights from Frankfurt to Keflavik in September.
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