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

Return flights

07 Dec - 07 Jan	Wizz Air Malta
06 Dec - 07 Dec	Wizz Air Malta
12 Dec - 16 Dec	Wizz Air
09 Dec - 09 Dec	Wizz Air Malta
11 Dec - 14 Dec	Wizz Air Malta
03 Dec - 10 Dec	KLM
01 Dec - 12 Dec	KLM
01 Dec - 08 Dec	KLM
05 Dec - 08 Dec	KLM
12 Dec - 15 Dec	KLM
01 Dec - 07 Dec	KLM
19 Dec - 07 Jan	KLM
08 Dec - 22 Jan	Wizz Air Malta
19 Dec - 04 Jan	KLM
20 Dec - 04 Jan	Wizz Air Malta
13 Dec - 01 Jan	KLM
19 Dec - 01 Jan	KLM
20 Dec - 01 Jan	Wizz Air Malta
30 Dec - 01 Jan	Wizz Air
19 Dec - 02 Jan	KLM

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

Book a cheap hotel in Barcelona

Cheap car rent in Barcelona

Cheapest return flights from Billund to Barcelona in December from $122

Return flights