Cheapest return flights from Frankfurt to Keflavik in May from $258

Best time to book flights for Frankfurt (FRA) to Keflavik (KEF) flights at AirHint

AirHint found the following cheapest return flights from Frankfurt (FRA) to Keflavik (KEF) in May 2025 (see full year).

Return flights

10 May - 19 May ITA Airways
10 May - 19 May Icelandair direct
09 May - 19 May Austrian Airlines
10 May - 17 May Austrian Airlines
01 May - 04 May Icelandair direct
10 May - 17 May Icelandair direct
01 May - 15 May Icelandair direct
05 May - 16 May Icelandair direct
09 May - 19 May Lufthansa direct

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

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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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