AirHint found the following cheapest return flights from Portland (PDX) to Buenos Aires (EZE) in November 2025 (see full year).
Return flights
| 11 Nov - 27 Nov | Delta | ||
| 27 Nov - 23 Dec | Delta | ||
| 01 Nov - 04 Nov | Delta | ||
| 25 Nov - 27 Dec | LATAM Airlines Group | ||
| 27 Nov - 30 Dec | United |
Also check the deals for one-way flights from Portland to Buenos Aires in November.
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