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

Return flights

01 Dec - 08 Dec	WestJet
05 Dec - 12 Dec	WestJet
02 Dec - 09 Dec	WestJet
07 Dec - 14 Dec	WestJet
03 Dec - 10 Dec	WestJet
04 Dec - 11 Dec	WestJet
08 Dec - 15 Dec	Porter Airlines (Canada) Ltd
09 Dec - 16 Dec	Porter Airlines (Canada) Ltd
06 Dec - 13 Dec	WestJet
10 Dec - 17 Dec	Air Transat
24 Dec - 18 Jan	Air Transat
28 Dec - 04 Jan	Porter Airlines (Canada) Ltd
30 Dec - 06 Jan	Porter Airlines (Canada) Ltd
29 Dec - 05 Jan	Porter Airlines (Canada) Ltd
15 Dec - 05 Jan	Air Transat
27 Dec - 04 Jan	Air Transat
31 Dec - 07 Jan	Porter Airlines (Canada) Ltd
25 Dec - 01 Jan	WestJet
22 Dec - 05 Jan	Porter Airlines (Canada) Ltd
27 Dec - 03 Jan	Porter Airlines (Canada) Ltd

Also check the deals for one-way flights from Montreal to Guangzhou 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 Guangzhou in December from $1138

Return flights