AirHint found the following cheapest return flights from Warsaw (WAW) to Keflavik (KEF) in December 2026 (see full year).
Return flights
| 04 Dec - 08 Dec | Wizz Air | direct | |
| 06 Dec - 10 Dec | Wizz Air | direct | |
| 13 Dec - 17 Dec | Wizz Air | ||
| 13 Dec - 17 Dec | LOT | direct | |
| 15 Dec - 19 Dec | Lufthansa |
Also check the deals for one-way flights from Warsaw to Keflavik in December.
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