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

Return flights

28 Aug - 02 Sep	Avianca
28 Aug - 01 Sep	Avianca
24 Aug - 28 Aug	Copa
20 Aug - 27 Aug	Frontier Airlines
29 Aug - 01 Sep	Avianca
23 Aug - 29 Aug	Copa
26 Aug - 31 Aug	Copa
27 Aug - 31 Aug	Copa
19 Aug - 22 Aug	Avianca
24 Aug - 29 Aug	Copa
25 Aug - 29 Aug	Copa
19 Aug - 21 Aug	Avianca
19 Aug - 24 Aug	Avianca

Also check the deals for one-way flights from New York 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 New York to Willemstad in August from 544€

Return flights