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

Return flights

06 Dec - 10 Dec	AJet	direct
08 Dec - 12 Dec	Pegasus Airlines	direct
10 Dec - 14 Dec	AJet	direct
15 Dec - 21 Dec	AJet	direct
17 Dec - 19 Dec	Wizz Air
13 Dec - 31 Dec	AJet	direct
27 Dec - 07 Jan	AJet	direct
18 Dec - 11 Jan	Ryanair
20 Dec - 15 Jan	Ryanair
01 Dec - 31 Dec	Pegasus Airlines
30 Dec - 02 Jan	SunExpress
23 Dec - 29 Dec	Ryanair
23 Dec - 29 Dec	AJet	direct
29 Dec - 02 Jan	AJet
26 Dec - 31 Dec	Ryanair
25 Dec - 01 Jan	Wizz Air Malta
24 Dec - 12 Jan	Ryanair
27 Dec - 04 Jan	AJet
25 Dec - 10 Jan	AJet	direct
24 Dec - 12 Jan	AJet	direct

Also check the deals for one-way flights from Brussels to Istanbul 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 Istanbul in December from 144€

Return flights