AirHint found the following cheapest return flights from Calgary (YYC) to Belgrade (BEG) in December 2025 (see full year).

Return flights

09 Dec - 18 Dec	WestJet
08 Dec - 15 Dec	WestJet
02 Dec - 09 Dec	WestJet
02 Dec - 25 Dec	WestJet
02 Dec - 16 Dec	WestJet
02 Dec - 23 Dec	WestJet
08 Dec - 25 Dec	WestJet
08 Dec - 21 Dec	WestJet
09 Dec - 16 Dec	WestJet
10 Dec - 17 Dec	Condor
23 Dec - 06 Jan	Lufthansa
31 Dec - 21 Jan	Condor
24 Dec - 14 Jan	Condor
24 Dec - 07 Jan	Condor
30 Dec - 20 Jan	KLM
23 Dec - 13 Jan	KLM
08 Dec - 03 Jan	Lufthansa
19 Dec - 02 Jan	Condor

Also check the deals for one-way flights from Calgary to Belgrade 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 Calgary to Belgrade in December from 430€

Return flights