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

Return flights

30 Oct - 13 Nov	Wizz Air Malta
31 Oct - 07 Nov	easyJet
09 Oct - 16 Oct	Ryanair
21 Oct - 27 Oct	Wizz Air Malta
28 Oct - 06 Nov	Ryanair
13 Oct - 20 Oct	Ryanair
15 Oct - 27 Oct	Ryanair
24 Oct - 27 Oct	Ryanair
06 Oct - 10 Oct	Ryanair
23 Oct - 26 Oct	Ryanair
18 Oct - 22 Oct	Ryanair
06 Oct - 12 Oct	Ryanair
14 Oct - 26 Oct	Wizz Air Malta
30 Oct - 03 Nov	Wizz Air Malta
25 Oct - 01 Nov	Wizz Air Malta
30 Oct - 02 Nov	Ryanair
26 Oct - 07 Nov	Ryanair
26 Oct - 01 Nov	Ryanair
25 Oct - 02 Nov	Ryanair
21 Oct - 02 Nov	Ryanair

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

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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Cheapest return flights from Frankfurt to Keflavik in October from 169€

Return flights