AirHint found the following cheapest one-way flights from Keflavik (KEF) to Istanbul (IST) in May 2026 (see full year).
One-Way flights
| 08 May | Scandinavian Airlines | ||
| 10 May | Wizz Air | ||
| 15 May | Wizz Air | ||
| 24 May | easyJet | ||
| 16 May | easyJet | ||
| 09 May | easyJet | ||
| 02 May | Wizz Air | ||
| 26 May | easyJet | ||
| 25 May | easyJet |
Also check the deals for return flights from Keflavik to Istanbul in May.
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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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