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

Return flights

03 Dec - 10 Dec	Avianca
01 Dec - 08 Dec	Air Canada
02 Dec - 09 Dec	Air Canada
01 Dec - 05 Dec	Avianca
08 Dec - 15 Dec	Air Canada
15 Dec - 22 Dec	Air Canada
09 Dec - 16 Dec	Air Canada
10 Dec - 17 Dec	Avianca
05 Dec - 12 Dec	Avianca
07 Dec - 14 Dec	Avianca
12 Dec - 12 Jan	Air Canada
08 Dec - 09 Jan	Air Canada
09 Dec - 05 Jan	Air Canada
01 Dec - 02 Jan	Avianca
05 Dec - 05 Jan	Air Canada
31 Dec - 11 Jan	Avianca
31 Dec - 07 Jan	Avianca
28 Dec - 04 Jan	Avianca
26 Dec - 02 Jan	Avianca
26 Dec - 04 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 289€

Return flights