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

Return flights

12 Dec - 19 Dec	WestJet
05 Dec - 12 Dec	WestJet
05 Dec - 13 Dec	Air Canada	direct
06 Dec - 15 Dec	Air Canada	direct
07 Dec - 13 Dec	Air Canada
05 Dec - 08 Dec	Air Canada
06 Dec - 13 Dec	Air Canada
08 Dec - 15 Dec	Air Canada
06 Dec - 14 Dec	Air Canada
12 Dec - 15 Dec	WestJet
27 Dec - 15 Jan	Air Canada	direct
27 Dec - 10 Jan	Air Canada
01 Dec - 30 Jan	Avianca
01 Dec - 19 Jan	Porter Airlines (Canada) Ltd
28 Dec - 15 Jan	WestJet
28 Dec - 10 Jan	Air Canada
27 Dec - 16 Jan	Air Canada	direct
24 Dec - 14 Jan	Porter Airlines (Canada) Ltd
19 Dec - 09 Jan	WestJet
16 Dec - 06 Jan	WestJet

Also check the deals for one-way flights from Montreal to Willemstad 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 Willemstad in December from $368

Return flights