Cheapest return flights from Detroit to Keflavik in December from $300

AirHint found the following cheapest return flights from Detroit (DTW) to Keflavik (KEF) in December 2025 (see full year).

Return flights

01 Dec - 06 Dec Icelandair direct
03 Dec - 08 Dec Icelandair
22 Dec - 29 Dec Icelandair direct
29 Dec - 01 Jan Icelandair direct
21 Dec - 28 Dec Icelandair
30 Dec - 06 Jan Icelandair
30 Dec - 02 Jan Lufthansa

Also check the deals for one-way flights from Detroit 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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