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

Return flights

23 Jan - 28 Jan	easyJet
12 Jan - 14 Jan	easyJet
16 Jan - 22 Jan	easyJet
09 Jan - 11 Jan	easyJet
11 Jan - 17 Jan	easyJet
23 Jan - 25 Jan	easyJet
21 Jan - 30 Jan	Wizz Air UK
23 Jan - 30 Jan	Lufthansa
30 Jan - 06 Feb	easyJet
19 Jan - 27 Jan	Wizz Air UK
16 Jan - 21 Jan	easyJet
30 Jan - 01 Feb	easyJet
15 Jan - 01 Feb	easyJet
29 Jan - 01 Feb	easyJet
29 Jan - 08 Feb	easyJet
15 Jan - 15 Feb	LOT
22 Jan - 15 Feb	LOT
22 Jan - 22 Feb	LOT

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

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 January from 140€

Return flights