AirHint found the following cheapest one-way flights from Istanbul (IST) to Keflavik (KEF) in September 2025 (see full year).
One-Way flights
| 11 Sep | Wizz Air | ||
| 10 Sep | Wizz Air | ||
| 20 Sep | Pegasus Airlines | ||
| 12 Sep | Pegasus Airlines | ||
| 17 Sep | Wizz Air UK | ||
| 19 Sep | Wizz Air UK | ||
| 18 Sep | Wizz Air UK | ||
| 02 Sep | Wizz Air | ||
| 15 Sep | Wizz Air | ||
| 04 Sep | Wizz Air |
Also check the deals for return flights from Istanbul to Keflavik in September.
The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.
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