AirHint found the following cheapest return flights from Fort Lauderdale (FLL) to Keflavik (KEF) in December 2025 (see full year).
Return flights
| 28 Dec - 17 Jan | jetBlue | ||
| 30 Dec - 13 Jan | jetBlue | ||
| 27 Dec - 05 Jan | Spirit Airlines | ||
| 03 Dec - 13 Dec | American Airlines | ||
| 04 Dec - 13 Dec | American Airlines | ||
| 26 Dec - 03 Jan | British Airways |
Also check the deals for one-way flights from Fort Lauderdale to Keflavik in December.
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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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