AirHint found the following cheapest return flights from Montreal (YUL) to Prague (PRG) in December 2025 (see full year).

Return flights

02 Dec - 09 Dec	British Airways
08 Dec - 15 Dec	British Airways
04 Dec - 11 Dec	Lufthansa
06 Dec - 13 Dec	Lufthansa
05 Dec - 12 Dec	Air Canada
07 Dec - 14 Dec	Air Canada
10 Dec - 17 Dec	British Airways
16 Dec - 23 Dec	British Airways
11 Dec - 18 Dec	Lufthansa
31 Dec - 07 Jan	Air France
24 Dec - 31 Dec	KLM
30 Dec - 06 Jan	Air France
25 Dec - 01 Jan	Air France
28 Dec - 04 Jan	British Airways
26 Dec - 02 Jan	British Airways
19 Dec - 09 Jan	Condor
27 Dec - 03 Jan	Lufthansa

Also check the deals for one-way flights from Montreal to Prague 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 Montreal to Prague in December from 605€

Return flights