AirHint found the following cheapest return flights from Fort Lauderdale (FLL) to Brussels (BRU) in December 2025 (see full year).

Return flights

10 Dec - 12 Jan	Delta
11 Dec - 12 Jan	Delta
05 Dec - 19 Dec	jetBlue
03 Dec - 19 Dec	jetBlue
27 Dec - 17 Jan	Brussels Airlines
24 Dec - 17 Jan	Lufthansa
04 Dec - 19 Dec	Spirit Airlines
25 Dec - 17 Jan	Lufthansa
26 Dec - 17 Jan	Lufthansa
22 Dec - 29 Dec	Spirit Airlines
21 Dec - 28 Dec	Spirit Airlines
22 Dec - 17 Jan	Brussels Airlines
23 Dec - 17 Jan	Lufthansa
28 Dec - 07 Jan	Brussels Airlines
07 Dec - 27 Dec	Brussels Airlines
23 Dec - 05 Jan	Brussels Airlines
21 Dec - 27 Dec	Delta

Also check the deals for one-way flights from Fort Lauderdale 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.

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Cheapest return flights from Fort Lauderdale to Brussels in December from $635

Return flights