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

Return flights

22 Jan - 05 Feb	Arajet
10 Jan - 04 Feb	Frontier Airlines
22 Jan - 10 Feb	Arajet
22 Jan - 22 Feb	Arajet
26 Jan - 22 Feb	Arajet
23 Jan - 22 Feb	Arajet
11 Jan - 04 Feb	Spirit Airlines
22 Jan - 31 Jan	Arajet
25 Jan - 03 Feb	Spirit Airlines
21 Jan - 19 Feb	Spirit Airlines
20 Jan - 28 Jan	Spirit Airlines
10 Jan - 28 Jan	Spirit Airlines
23 Jan - 21 Feb	Arajet
21 Jan - 31 Jan	Spirit Airlines
10 Jan - 31 Jan	Frontier Airlines
17 Jan - 28 Jan	Spirit Airlines
13 Jan - 29 Jan	Spirit Airlines
21 Jan - 28 Jan	Spirit Airlines
22 Jan - 27 Jan	Arajet
23 Jan - 26 Jan	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.

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Cheapest return flights from Newark to Buenos Aires in January from $614

Return flights