Cheapest return flights from Detroit to Keflavik in April from $512

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

Return flights

22 Apr - 29 Apr Spirit Airlines
08 Apr - 15 Apr Spirit Airlines
03 Apr - 09 Apr Spirit Airlines
24 Apr - 28 Apr Spirit Airlines
11 Apr - 18 Apr Spirit Airlines
27 Apr - 04 May Spirit Airlines
02 Apr - 11 Apr Spirit Airlines
03 Apr - 10 Apr jetBlue
01 Apr - 08 Apr Spirit Airlines

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

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