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

Return flights

15 Oct - 22 Oct	Avianca
01 Oct - 08 Oct	Avianca
19 Oct - 26 Oct	Avianca
13 Oct - 20 Oct	Avianca
18 Oct - 25 Oct	United
26 Oct - 02 Nov	Avianca
17 Oct - 24 Oct	Avianca
08 Oct - 15 Oct	Avianca
31 Oct - 07 Nov	Avianca
06 Oct - 13 Oct	Avianca
31 Oct - 09 Nov	Avianca
13 Oct - 19 Oct	Avianca
24 Oct - 31 Oct	Avianca
27 Oct - 03 Nov	Air Canada
24 Oct - 03 Nov	Avianca
28 Oct - 04 Nov	Air Canada
23 Oct - 02 Nov	Porter Airlines (Canada) Ltd
31 Oct - 10 Nov	Avianca
30 Oct - 06 Nov	Porter Airlines (Canada) Ltd
29 Oct - 05 Nov	Avianca

Also check the deals for one-way flights from Montreal to Willemstad in October.

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 October from 289€

Return flights