Cheapest return flights from Frankfurt to Keflavik in September from 192€

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 September 2025 (see full year).

Return flights

15 Sep - 01 Oct Ryanair
08 Sep - 17 Sep Ryanair
16 Sep - 01 Oct Ryanair
19 Sep - 08 Oct Ryanair
08 Sep - 14 Sep Ryanair
11 Sep - 18 Sep Ryanair
29 Sep - 10 Oct Ryanair
13 Sep - 18 Sep Ryanair
08 Sep - 15 Sep Ryanair
09 Sep - 23 Sep Ryanair
04 Sep - 08 Sep Ryanair
14 Sep - 28 Sep Ryanair
15 Sep - 22 Sep Ryanair
18 Sep - 10 Oct LOT
29 Sep - 05 Oct Ryanair
23 Sep - 10 Oct LOT
13 Sep - 01 Oct easyJet
13 Sep - 27 Sep Ryanair
27 Sep - 11 Oct Ryanair
20 Sep - 03 Oct LOT

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

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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