AirHint found the following cheapest return flights from Miami (MIA) to Keflavik (KEF) in October 2025 (see full year).
Return flights
| 24 Oct - 31 Oct | Frontier Airlines | ||
| 26 Oct - 15 Nov | Icelandair | direct | |
| 20 Oct - 27 Oct | TAP | ||
| 19 Oct - 08 Nov | TAP | ||
| 24 Oct - 15 Nov | Frontier Airlines | ||
| 19 Oct - 26 Oct | TAP | ||
| 26 Oct - 30 Oct | Frontier Airlines |
Also check the deals for one-way flights from Miami to Keflavik in October.
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