AirHint found the following cheapest return flights from Warsaw (WMI) to Keflavik (KEF) in December 2025 (see full year).

Return flights

06 Dec - 11 Dec	Ryanair
11 Dec - 17 Dec	Wizz Air
02 Dec - 06 Dec	Ryanair
13 Dec - 17 Dec	Ryanair
11 Dec - 15 Dec	Ryanair
07 Dec - 11 Dec	Ryanair
05 Dec - 12 Dec	Ryanair
05 Dec - 11 Dec	Ryanair
13 Dec - 19 Dec	Ryanair
08 Dec - 13 Dec	Ryanair
21 Dec - 05 Jan	Wizz Air
28 Dec - 10 Jan	Wizz Air
21 Dec - 03 Jan	Wizz Air
28 Dec - 05 Jan	Wizz Air
20 Dec - 04 Jan	Ryanair
27 Dec - 10 Jan	Ryanair
27 Dec - 05 Jan	Ryanair
29 Dec - 05 Jan	Wizz Air
19 Dec - 03 Jan	Ryanair
22 Dec - 06 Jan	Ryanair

Also check the deals for one-way flights from Warsaw to Keflavik in December.

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 Warsaw to Keflavik in December from 215€

Return flights