AirHint found the following cheapest return flights from Reykjavik (REK) to Barcelona (BCN) in December 2025 (see full year).

Return flights

09 Dec - 13 Dec	easyJet
06 Dec - 12 Dec	SWISS
01 Dec - 07 Dec	Wizz Air Malta
30 Dec - 12 Jan	easyJet
11 Dec - 06 Jan	easyJet
18 Dec - 08 Jan	easyJet
12 Dec - 14 Dec	easyJet
31 Dec - 07 Jan	Wizz Air
30 Dec - 06 Jan	easyJet
15 Dec - 23 Dec	easyJet
16 Dec - 23 Dec	easyJet
17 Dec - 24 Dec	easyJet
31 Dec - 04 Jan	easyJet
24 Dec - 01 Jan	transavia
29 Dec - 11 Jan	easyJet
18 Dec - 23 Dec	easyJet
31 Dec - 03 Jan	Wizz Air
22 Dec - 06 Jan	Transavia France
19 Dec - 21 Dec	Icelandair
22 Dec - 30 Dec	Icelandair

Also check the deals for one-way flights from Reykjavik to Barcelona 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 Reykjavik to Barcelona in December from $170

Return flights