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

Return flights

08 Dec - 12 Dec	easyJet
08 Dec - 13 Dec	easyJet
07 Dec - 11 Dec	Ryanair
07 Dec - 13 Dec	Ryanair
01 Dec - 08 Dec	Ryanair
08 Dec - 15 Dec	easyJet
03 Dec - 09 Dec	easyJet
01 Dec - 13 Dec	Ryanair
06 Dec - 13 Dec	Ryanair
08 Dec - 14 Dec	easyJet
22 Dec - 01 Jan	Ryanair
31 Dec - 05 Jan	Air France
20 Dec - 03 Jan	Ryanair
31 Dec - 04 Jan	Vueling Airlines
24 Dec - 02 Jan	Ryanair
25 Dec - 04 Jan	KLM
29 Dec - 01 Jan	easyJet
30 Dec - 03 Jan	Ryanair
26 Dec - 03 Jan	Volotea
27 Dec - 03 Jan	Ryanair

Also check the deals for one-way flights from Marseille 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 Marseille to Keflavik in December from $226

Return flights