AirHint found the following cheapest return flights from Minneapolis (MSP) to Keflavik (KEF) in October 2025 (see full year).

Return flights

18 Oct - 24 Oct	Icelandair	direct
29 Oct - 05 Nov	Icelandair	direct
31 Oct - 05 Nov	Icelandair	direct
31 Oct - 02 Nov	Icelandair	direct
23 Oct - 01 Nov	Icelandair	direct
06 Oct - 15 Oct	Icelandair	direct
19 Oct - 23 Oct	Icelandair	direct
19 Oct - 26 Oct	Icelandair	direct
30 Oct - 05 Nov	Frontier Airlines
21 Oct - 28 Oct	Sun Country Airlines
05 Oct - 25 Oct	Icelandair	direct
09 Oct - 13 Oct	Icelandair	direct
15 Oct - 19 Oct	Sun Country Airlines
13 Oct - 19 Oct	Icelandair
11 Oct - 18 Oct	Icelandair	direct

Also check the deals for one-way flights from Minneapolis to Keflavik in October.

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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Cheapest return flights from Minneapolis to Keflavik in October from $357

Return flights