Cheapest return flights from Detroit to Keflavik in September from 525€

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

Return flights

01 Sep - 08 Sep Icelandair
16 Sep - 23 Sep jetBlue
09 Sep - 16 Sep jetBlue
04 Sep - 07 Sep Spirit Airlines
03 Sep - 13 Sep Air France
03 Sep - 12 Sep Air France
04 Sep - 06 Sep KLM
04 Sep - 13 Sep KLM

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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