Cheapest one-way flights from Newark to Buenos Aires in December from $266

AirHint found the following cheapest one-way flights from Newark (EWR) to Buenos Aires (AEP) in December 2025 (see full year).

One-Way flights

13 Dec Spirit Airlines
07 Dec Spirit Airlines
12 Dec Spirit Airlines
02 Dec Frontier Airlines
05 Dec Frontier Airlines
29 Dec Frontier Airlines
08 Dec jetBlue
30 Dec Spirit Airlines
28 Dec Spirit Airlines
14 Dec Spirit Airlines

Also check the deals for return flights from Newark to Buenos Aires in December.

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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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