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

Return flights

02 Oct - 09 Oct	Lufthansa
02 Oct - 06 Oct	Lufthansa
02 Oct - 05 Oct	Lufthansa
16 Oct - 20 Oct	Wizz Air
15 Oct - 19 Oct	Wizz Air
28 Oct - 30 Oct	easyJet
03 Oct - 07 Oct	easyJet
05 Oct - 12 Oct	Fly Play	direct
02 Oct - 05 Oct	Fly Play	direct
02 Oct - 09 Oct	Fly Play	direct

Also check the deals for one-way flights from Keflavik to Prague 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 Keflavik to Prague in October from 157€

Return flights