Cheapest return flights from Detroit to Keflavik in May from $586

AirHint found the following cheapest return flights from Detroit (DTW) to Keflavik (KEF) in May 2026 (see full year).

Return flights

10 May - 17 May Air France direct
21 May - 28 May Delta direct
24 May - 31 May Delta direct
23 May - 30 May KLM
07 May - 15 May Air France direct
09 May - 17 May Air France direct
10 May - 18 May Air France direct
11 May - 19 May Air France direct
12 May - 20 May Air France direct
14 May - 22 May Air France
14 May - 06 Jun Air France
13 May - 06 Jun Icelandair

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

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