AirHint found the following cheapest return flights from Keflavik (KEF) to Tehran (IKA) in December 2025 (see full year).
Return flights
| 08 Dec - 31 Dec | Wizz Air | ||
| 09 Dec - 31 Dec | easyJet | ||
| 11 Dec - 31 Dec | easyJet | ||
| 10 Dec - 31 Dec | easyJet | ||
| 12 Dec - 31 Dec | Wizz Air |
Also check the deals for one-way flights from Keflavik to Tehran in December.
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