AirHint found the following cheapest one-way flights from Newark (EWR) to Buenos Aires (EZE) in August 2025 (see full year).

One-Way flights

05 Aug	Spirit Airlines
17 Aug	Spirit Airlines
18 Aug	Spirit Airlines
14 Aug	Spirit Airlines
29 Aug	Spirit Airlines
30 Aug	Spirit Airlines
15 Aug	Spirit Airlines
10 Aug	Spirit Airlines
03 Aug	Frontier Airlines
07 Aug	Spirit Airlines

Also check the deals for return flights from Newark to Buenos Aires 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 one-way flights from Newark to Buenos Aires in August from 312€

One-Way flights