AirHint found the following cheapest return flights from Prague (PRG) to Keflavik (KEF) in August 2026 (see full year).

Return flights

31 Aug - 14 Sep	easyJet
31 Aug - 05 Sep	Smart Wings
27 Aug - 03 Sep	Smart Wings
28 Aug - 12 Sep	easyJet
26 Aug - 01 Sep	Ryanair
29 Aug - 12 Sep	easyJet
18 Aug - 01 Sep	Wizz Air UK
20 Aug - 27 Aug	Smart Wings
29 Aug - 08 Sep	Wizz Air UK
26 Aug - 03 Sep	SWISS
23 Aug - 03 Sep	Lufthansa
23 Aug - 29 Aug	Ryanair
23 Aug - 31 Aug	Norwegian Air Sweden AOC
21 Aug - 27 Aug	SWISS
24 Aug - 31 Aug	Scandinavian Airlines
14 Aug - 22 Aug	Scandinavian Airlines
13 Aug - 27 Aug	Scandinavian Airlines
12 Aug - 24 Aug	Ryanair
14 Aug - 18 Aug	Finnair
21 Aug - 28 Aug	SWISS

Also check the deals for one-way flights from Prague to Keflavik in August.

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.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik

Cheapest return flights from Prague to Keflavik in August from 217€

Return flights