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

Return flights

09 Dec - 16 Dec	easyJet
12 Dec - 14 Dec	Wizz Air Malta
22 Dec - 31 Jan	easyJet
16 Dec - 06 Jan	easyJet
10 Dec - 17 Dec	easyJet
17 Dec - 06 Jan	Finnair
07 Dec - 21 Dec	Jet2
16 Dec - 05 Jan	easyJet
16 Dec - 03 Jan	easyJet
19 Dec - 03 Jan	Scandinavian Airlines
21 Dec - 05 Jan	Scandinavian Airlines
21 Dec - 03 Jan	Scandinavian Airlines
17 Dec - 05 Jan	Scandinavian Airlines
06 Dec - 20 Dec	easyJet
18 Dec - 05 Jan	Scandinavian Airlines
24 Dec - 30 Dec	Finnair
22 Dec - 30 Dec	easyJet
22 Dec - 31 Dec	easyJet
23 Dec - 30 Dec	Scandinavian Airlines
20 Dec - 30 Dec	easyJet

Also check the deals for one-way flights from Keflavik to Riga 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 Keflavik to Riga in December from 245€

Return flights