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

Return flights

08 Dec - 15 Dec	Wizz Air Malta
01 Dec - 04 Dec	Wizz Air Malta
12 Dec - 16 Dec	Wizz Air Malta
22 Dec - 28 Dec	Wizz Air Malta
06 Dec - 10 Dec	Wizz Air Malta
04 Dec - 09 Dec	Wizz Air Malta
20 Dec - 10 Jan	Wizz Air Malta
20 Dec - 05 Jan	Wizz Air Malta
30 Dec - 03 Jan	Wizz Air Malta
19 Dec - 22 Dec	Wizz Air Malta
31 Dec - 07 Jan	KLM
24 Dec - 27 Dec	LOT
28 Dec - 07 Jan	Ryanair
30 Dec - 06 Jan	Ryanair
29 Dec - 05 Jan	Wizz Air Malta
27 Dec - 09 Jan	Ryanair
30 Dec - 01 Jan	Wizz Air Malta
29 Dec - 04 Jan	Wizz Air Malta

Also check the deals for one-way flights from Bucharest 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.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik

Cheapest return flights from Bucharest to Keflavik in December from 160€

Return flights