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

Return flights

02 Oct - 05 Oct	Fly Play	direct
09 Oct - 12 Oct	Fly Play	direct
19 Oct - 25 Oct	Austrian Airlines
29 Oct - 05 Nov	easyJet
17 Oct - 31 Oct	Scandinavian Airlines
18 Oct - 29 Oct	Ryanair
11 Oct - 21 Oct	Lufthansa
09 Oct - 15 Oct	easyJet
27 Oct - 21 Nov	easyJet
14 Oct - 17 Oct	Norwegian
31 Oct - 07 Nov	Ryanair
15 Oct - 19 Oct	Norwegian
20 Oct - 31 Oct	Wizz Air UK
31 Oct - 03 Nov	Ryanair
24 Oct - 02 Nov	Scandinavian Airlines
27 Oct - 01 Nov	Ryanair
31 Oct - 01 Nov	Ryanair
24 Oct - 18 Nov	Ryanair
25 Oct - 01 Nov	Lufthansa
24 Oct - 01 Nov	Norwegian Air Sweden AOC

Also check the deals for one-way flights from Prague 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 Prague to Keflavik in October from 155€

Return flights