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

Return flights

01 Dec - 08 Dec	Avianca
05 Dec - 12 Dec	Avianca
01 Dec - 30 Jan	Avianca
08 Dec - 15 Dec	Air Canada
09 Dec - 16 Dec	Air Canada
11 Dec - 18 Dec	WestJet
10 Dec - 17 Dec	WestJet
15 Dec - 26 Dec	WestJet
07 Dec - 14 Dec	Avianca
12 Dec - 19 Dec	WestJet
15 Dec - 22 Dec	Air Canada
01 Dec - 19 Jan	Porter Airlines (Canada) Ltd
14 Dec - 17 Jan	WestJet
29 Dec - 05 Jan	Air Canada
22 Dec - 05 Jan	Air Canada
24 Dec - 02 Jan	Avianca
31 Dec - 07 Jan	Air Transat
28 Dec - 04 Jan	Avianca
30 Dec - 06 Jan	Avianca
25 Dec - 01 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 $477

Return flights