Cheapest return flights from Newark to Buenos Aires in October from $896

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 October 2025 (see full year).

Return flights

18 Oct - 27 Oct Spirit Airlines
20 Oct - 24 Oct Spirit Airlines
23 Oct - 24 Oct Spirit Airlines
22 Oct - 25 Oct Spirit Airlines
21 Oct - 28 Oct LATAM Airlines Group
08 Oct - 22 Oct LATAM Airlines Group
23 Oct - 30 Oct Air Canada
03 Oct - 13 Oct LATAM Airlines Group
18 Oct - 01 Nov LATAM Airlines Group
21 Oct - 27 Oct United
28 Oct - 31 Oct United
25 Oct - 01 Nov United

Also check the deals for one-way flights from Newark to Buenos Aires in October.

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