AirHint found the following cheapest one-way flights from Keflavik (KEF) to Istanbul (IST) in January 2026 (see full year).
One-Way flights
| 15 Jan | easyJet | ||
| 28 Jan | easyJet | ||
| 26 Jan | Wizz Air | ||
| 25 Jan | easyJet | ||
| 18 Jan | easyJet | ||
| 24 Jan | Wizz Air | ||
| 05 Jan | Wizz Air | ||
| 04 Jan | Wizz Air | ||
| 04 Jan | Icelandair | direct | |
| 01 Jan | Icelandair | direct |
Also check the deals for return flights from Keflavik to Istanbul in January.
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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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