AirHint found the following cheapest return flights from Philadelphia (PHL) to Oranjestad (AUA) in August 2025 (see full year).

Return flights

29 Aug - 13 Sep	Spirit Airlines
23 Aug - 26 Aug	Spirit Airlines
22 Aug - 29 Aug	Frontier Airlines
09 Aug - 12 Aug	Spirit Airlines
08 Aug - 13 Aug	Spirit Airlines
08 Aug - 15 Aug	Spirit Airlines
13 Aug - 20 Aug	Frontier Airlines
10 Aug - 17 Aug	Spirit Airlines
07 Aug - 14 Aug	Spirit Airlines
11 Aug - 18 Aug	Frontier Airlines
02 Aug - 05 Aug	Spirit Airlines

Also check the deals for one-way flights from Philadelphia to Oranjestad 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 Philadelphia to Oranjestad in August from 346€

Return flights