Cheapest return flights from Detroit to Keflavik in September from 410€

Best time to book flights for Detroit (DTW) to Keflavik (KEF) flights at AirHint

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

Return flights

13 Sep - 20 Sep Icelandair direct
15 Sep - 22 Sep Icelandair direct
20 Sep - 27 Sep Icelandair direct
01 Sep - 08 Sep Air France direct
16 Sep - 23 Sep Air France direct
21 Sep - 28 Sep Air France direct
17 Sep - 24 Sep Air France
18 Sep - 25 Sep Icelandair direct
14 Sep - 21 Sep Air Canada
19 Sep - 26 Sep Air Canada
26 Sep - 03 Oct jetBlue

Also check the deals for one-way flights from Detroit to Keflavik in September.

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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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