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

Return flights

11 Dec - 18 Dec	TAP
02 Dec - 23 Dec	Iberia For Level	direct
07 Dec - 16 Dec	Iberia For Level	direct
09 Dec - 23 Dec	Iberia For Level	direct
04 Dec - 11 Dec	Iberia	direct
02 Dec - 11 Dec	Iberia	direct
10 Dec - 11 Jan	Scandinavian Airlines
11 Dec - 22 Dec	TAP
02 Dec - 27 Dec	Scandinavian Airlines
02 Dec - 07 Dec	Scandinavian Airlines
05 Dec - 12 Dec	Iberia
31 Dec - 24 Jan	Iberia
30 Dec - 06 Jan	Lufthansa
13 Dec - 17 Jan	SWISS
15 Dec - 10 Jan	Lufthansa
26 Dec - 12 Jan	Scandinavian Airlines
28 Dec - 08 Jan	ITA Airways
25 Dec - 08 Jan	TAP
25 Dec - 17 Jan	Lufthansa
29 Dec - 24 Jan	Turkish Airlines

Also check the deals for one-way flights from Los Angeles 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 Los Angeles to Barcelona in December from $427

Return flights