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

Return flights

31 Dec - 01 Jan	Ryanair
18 Dec - 22 Dec	Ryanair
28 Dec - 31 Dec	Ryanair
31 Dec - 04 Jan	Ryanair
29 Dec - 01 Jan	Ryanair
20 Dec - 23 Dec	Ryanair
28 Dec - 03 Jan	Ryanair
30 Dec - 01 Jan	Ryanair
27 Dec - 30 Dec	Ryanair
19 Dec - 23 Dec	Wizz Air Malta
29 Dec - 04 Jan	Ryanair
18 Dec - 21 Dec	Ryanair
19 Dec - 26 Dec	Ryanair
19 Dec - 21 Dec	Ryanair
30 Dec - 04 Jan	Jet2
19 Dec - 27 Dec	Ryanair
20 Dec - 21 Dec	Ryanair
30 Dec - 02 Jan	Ryanair

Also check the deals for one-way flights from Glasgow 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 Glasgow to Brussels in December from $143

Return flights