AirHint found the following cheapest return flights from Keflavik (KEF) to Funchal (FNC) in December 2025 (see full year).
Return flights
| 05 Dec - 13 Dec | easyJet | ||
| 12 Dec - 19 Dec | easyJet | ||
| 21 Dec - 13 Jan | TUI | ||
| 16 Dec - 28 Dec | easyJet | ||
| 13 Dec - 26 Dec | easyJet |
Also check the deals for one-way flights from Keflavik to Funchal in December.
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