AirHint found the following cheapest return flights from Newark (EWR) to Buenos Aires (EZE) in January 2026 (see full year).

Return flights

19 Jan - 19 Feb	Frontier Airlines
08 Jan - 21 Jan	United
08 Jan - 22 Jan	United
05 Jan - 21 Jan	United
21 Jan - 29 Jan	United
14 Jan - 22 Jan	Delta
12 Jan - 27 Jan	LATAM Airlines Group
14 Jan - 29 Jan	Delta
19 Jan - 27 Jan	Delta
26 Jan - 02 Feb	Delta
26 Jan - 09 Feb	Delta
20 Jan - 05 Feb	Delta
24 Jan - 31 Jan	Spirit Airlines
23 Jan - 31 Jan	Spirit Airlines
22 Jan - 01 Feb	United
23 Jan - 02 Feb	Delta
09 Jan - 22 Feb	Spirit Airlines
23 Jan - 22 Feb	Delta
16 Jan - 01 Feb	Arajet

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

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

Cheapest return flights from Newark to Buenos Aires in January from 617€

Return flights