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

Return flights

09 Dec - 16 Dec	Lufthansa
28 Dec - 13 Jan	Finnair
24 Dec - 13 Jan	British Airways
24 Dec - 14 Jan	British Airways
13 Dec - 13 Jan	United
04 Dec - 11 Dec	Lufthansa
05 Dec - 12 Dec	Lufthansa
07 Dec - 14 Dec	Lufthansa
08 Dec - 15 Dec	Lufthansa
06 Dec - 13 Dec	Lufthansa
03 Dec - 10 Dec	Brussels Airlines
03 Dec - 12 Dec	Turkish Airlines
10 Dec - 17 Dec	Lufthansa
31 Dec - 07 Jan	Lufthansa
25 Dec - 08 Jan	Delta
11 Dec - 18 Dec	Lufthansa
25 Dec - 07 Jan	Brussels Airlines
25 Dec - 05 Jan	Brussels Airlines
24 Dec - 01 Jan	Brussels Airlines
24 Dec - 05 Jan	Lufthansa

Also check the deals for one-way flights from Los Angeles to Brussels 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 Brussels

Cheap car rent in Brussels

Cheapest return flights from Los Angeles to Brussels in December from 385€

Return flights