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

Return flights

23 Aug - 27 Aug	Spirit Airlines
03 Aug - 06 Aug	Spirit Airlines
11 Aug - 17 Aug	Spirit Airlines
21 Aug - 26 Aug	Spirit Airlines
11 Aug - 16 Aug	Spirit Airlines
15 Aug - 23 Aug	Spirit Airlines
13 Aug - 20 Aug	Arajet
31 Aug - 08 Sep	Spirit Airlines
02 Aug - 10 Aug	Spirit Airlines
21 Aug - 30 Aug	United
29 Aug - 01 Sep	Spirit Airlines
07 Aug - 12 Aug	Spirit Airlines
28 Aug - 02 Sep	United

Also check the deals for one-way flights from Newark 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 Newark to Willemstad in August from 495€

Return flights