Cheapest return flights from Frankfurt to Keflavik in May from $250

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

16 May - 21 May Ryanair
14 May - 21 May Ryanair
22 May - 28 May Ryanair
27 May - 08 Jun Ryanair
13 May - 17 May Ryanair
15 May - 22 May Ryanair
17 May - 21 May Ryanair
21 May - 25 May Ryanair
16 May - 19 May Ryanair
14 May - 20 May Ryanair
27 May - 03 Jun Ryanair
15 May - 17 May Ryanair
27 May - 01 Jun Ryanair
28 May - 04 Jun Ryanair
29 May - 02 Jun LOT
29 May - 09 Jun LOT
31 May - 08 Jun easyJet
17 May - 14 Jun Wizz Air Malta
29 May - 03 Jun Ryanair
25 May - 03 Jun Lufthansa

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

Skyscanner

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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