AirHint found the following cheapest return flights from Istanbul (IST) to Keflavik (KEF) in April 2026 (see full year).
Return flights
| 13 Apr - 20 Apr | Lufthansa | ||
| 01 Apr - 05 Apr | Transavia France | ||
| 26 Apr - 02 May | Lufthansa | ||
| 07 Apr - 14 Apr | Wizz Air UK | ||
| 06 Apr - 14 Apr | Lufthansa |
Also check the deals for one-way flights from Istanbul to Keflavik in April.
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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