AirHint found the following cheapest return flights from Prague (PRG) to Keflavik (KEF) in December 2026 (see full year).
Return flights
| 18 Dec - 21 Dec | LOT | ||
| 18 Dec - 21 Dec | Icelandair | direct | |
| 21 Dec - 24 Dec | LOT | ||
| 27 Dec - 03 Jan | Norwegian |
Also check the deals for one-way flights from Prague to Keflavik in December.
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