Cheapest return flights from Newark to Buenos Aires in September from $1016

Best time to book flights for Newark (EWR) to Buenos Aires (AEP) flights at AirHint

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

Return flights

03 Sep - 08 Sep LATAM Airlines Group
05 Sep - 14 Sep LATAM Airlines Group
05 Sep - 12 Sep LATAM Airlines Group
04 Sep - 12 Sep jetBlue
20 Sep - 28 Sep LATAM Airlines Group
18 Sep - 28 Sep LATAM Airlines Group

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.

Book a cheap hotel in Buenos Aires

Cheap car rent in Buenos Aires