Cheapest return flights from Newark to Buenos Aires in September from $826

AirHint found the following cheapest return flights from Newark (EWR) to Buenos Aires (AEP) in September 2025 (see full year).

Return flights

19 Sep - 28 Sep Spirit Airlines
08 Sep - 22 Sep Air Canada
01 Sep - 11 Sep jetBlue
10 Sep - 17 Sep LATAM Airlines Group
28 Sep - 08 Oct LATAM Airlines Group
24 Sep - 09 Oct TAP
23 Sep - 02 Oct TAP
26 Sep - 03 Oct United
17 Sep - 20 Sep Delta

Also check the deals for one-way 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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