Cheapest return flights from Detroit to Keflavik in July from $719

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

Return flights

14 Jul - 21 Jul jetBlue
15 Jul - 22 Jul Spirit Airlines
10 Jul - 17 Jul jetBlue
13 Jul - 20 Jul Spirit Airlines
17 Jul - 24 Jul jetBlue
16 Jul - 23 Jul jetBlue
12 Jul - 23 Jul Air France direct
14 Jul - 21 Jul Air France direct
19 Jul - 26 Jul Spirit Airlines
12 Jul - 19 Jul Spirit Airlines

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

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