AirHint found the following cheapest return flights from Minneapolis (MSP) to Keflavik (KEF) in September 2026 (see full year).
Return flights
| 30 Sep - 07 Oct | Icelandair | direct | |
| 21 Sep - 28 Sep | Icelandair | direct | |
| 07 Sep - 14 Sep | Icelandair | direct | |
| 08 Sep - 15 Sep | Icelandair | direct | |
| 24 Sep - 01 Oct | Icelandair | direct |
Also check the deals for one-way flights from Minneapolis to Keflavik in September.
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