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

Return flights

04 Dec - 18 Dec	British Airways
15 Dec - 15 Jan	United
10 Dec - 17 Dec	Lufthansa
04 Dec - 18 Dec	Euroairlines, S.L.	direct
11 Dec - 20 Dec	Air Canada
29 Dec - 13 Jan	United
15 Dec - 26 Dec	United
11 Dec - 13 Jan	United
10 Dec - 22 Dec	Air Canada
18 Dec - 25 Dec	SWISS
16 Dec - 30 Dec	KLM
29 Dec - 10 Jan	United
11 Dec - 30 Dec	Delta
25 Dec - 08 Jan	Euroairlines, S.L.	direct
11 Dec - 31 Dec	United
24 Dec - 16 Jan	United
24 Dec - 09 Jan	United
27 Dec - 10 Jan	United
24 Dec - 07 Jan	United
25 Dec - 09 Jan	Euroairlines, S.L.

Also check the deals for one-way flights from Brussels to Cancun 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 Brussels to Cancun in December from $588

Return flights