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

Return flights

02 Dec - 09 Dec	TAP
04 Dec - 12 Dec	TAP
03 Dec - 10 Dec	Iberia	direct
10 Dec - 16 Dec	Finnair
10 Dec - 15 Dec	Lufthansa
03 Dec - 08 Dec	Lufthansa
03 Dec - 07 Dec	British Airways	direct
10 Dec - 17 Dec	Air Canada
02 Dec - 06 Dec	TAP
10 Dec - 17 Dec	Finnair	direct
30 Dec - 09 Jan	TAP
31 Dec - 14 Jan	Finnair	direct
11 Dec - 25 Jan	Iberia
28 Dec - 07 Jan	United
24 Dec - 11 Jan	Lufthansa
25 Dec - 01 Jan	TAP
13 Dec - 03 Jan	TAP
27 Dec - 02 Jan	TAP
30 Dec - 01 Jan	TAP
17 Dec - 07 Jan	United

Also check the deals for one-way flights from Los Angeles to Madrid 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 Madrid in December from 297€

Return flights