Cheapest return flights from Miami to Keflavik in January from $485

AirHint found the following cheapest return flights from Miami (MIA) to Keflavik (KEF) in January 2026 (see full year).

Return flights

14 Jan - 22 Jan Icelandair direct
23 Jan - 31 Jan Icelandair direct
09 Jan - 17 Jan Icelandair direct
11 Jan - 15 Jan Icelandair direct
11 Jan - 18 Jan Spirit Airlines
14 Jan - 21 Jan Spirit Airlines
09 Jan - 16 Jan Frontier Airlines
12 Jan - 19 Jan SWISS
08 Jan - 15 Jan Frontier Airlines
01 Jan - 10 Jan Spirit Airlines

Also check the deals for one-way flights from Miami to Keflavik in January.

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