AirHint found the following cheapest return flights from Newark (EWR) to Buenos Aires (EZE) in May 2026 (see full year).
Return flights
| 29 May - 16 Jun | Arajet | ||
| 17 May - 31 May | Delta | ||
| 27 May - 31 May | Delta | ||
| 22 May - 31 May | United | ||
| 29 May - 12 Jun | United |
Also check the deals for one-way flights from Newark to Buenos Aires in May.
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