Cheapest one-way flights from Newark to Buenos Aires in September from $342

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

One-Way flights

01 Sep Frontier Airlines
29 Sep Frontier Airlines
24 Sep Frontier Airlines
30 Sep Frontier Airlines
28 Sep Spirit Airlines
17 Sep Spirit Airlines
27 Sep Spirit Airlines
04 Sep Austrian Airlines
13 Sep Air Canada

Also check the deals for return flights from Newark to Buenos Aires in September.

Skyscanner

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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