Cheapest one-way flights from Istanbul to Keflavik in September from 98€

AirHint found the following cheapest one-way flights from Istanbul (IST) to Keflavik (KEF) in September 2025 (see full year).

One-Way flights

18 Sep KLM
17 Sep KLM
30 Sep Pegasus Airlines
25 Sep KLM
23 Sep Pegasus Airlines
27 Sep Wizz Air UK
24 Sep KLM
11 Sep KLM
15 Sep Pegasus Airlines
12 Sep Pegasus Airlines

Also check the deals for return flights from Istanbul to Keflavik in September.

Skyscanner

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.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik

Feel free to contact us with any feedback or request another flight research.