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

Return flights

22 Aug - 29 Aug	Avianca
24 Aug - 29 Aug	Avianca
30 Aug - 06 Sep	Copa
29 Aug - 13 Sep	Avianca
27 Aug - 03 Sep	Copa
28 Aug - 04 Sep	Avianca
19 Aug - 26 Aug	Avianca
24 Aug - 31 Aug	Avianca
25 Aug - 27 Aug	Avianca
20 Aug - 27 Aug	Avianca
26 Aug - 02 Sep	Avianca
30 Aug - 07 Sep	Copa
29 Aug - 05 Sep	Avianca
23 Aug - 30 Aug	Avianca
21 Aug - 28 Aug	Copa
31 Aug - 07 Sep	Avianca
25 Aug - 28 Aug	Copa
25 Aug - 01 Sep	Avianca
23 Aug - 01 Sep	Avianca
18 Aug - 25 Aug	Copa

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

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 August from 433€

Return flights