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

Return flights

31 Dec - 21 Jan	Avianca
07 Dec - 20 Dec	Air Canada
08 Dec - 20 Dec	Air Canada
09 Dec - 20 Dec	Air Canada
08 Dec - 22 Dec	Air Canada
09 Dec - 16 Dec	Air Canada
07 Dec - 14 Dec	WestJet
08 Dec - 20 Dec	Air Canada	direct
08 Dec - 19 Dec	Air Canada
12 Dec - 18 Dec	Air Canada
14 Dec - 21 Dec	Air Canada
30 Dec - 20 Jan	Avianca
31 Dec - 10 Jan	Avianca
31 Dec - 09 Jan	Avianca
29 Dec - 12 Jan	Air Canada
31 Dec - 07 Jan	Avianca
31 Dec - 08 Jan	Avianca
30 Dec - 08 Jan	Avianca
27 Dec - 05 Jan	Porter Airlines (Canada) Ltd
30 Dec - 06 Jan	Avianca

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 312€

Return flights