AirHint found the following cheapest return flights from Portland (PDX) to San Juan (SJU) in February 2026 (see full year).
Return flights
| 27 Feb - 06 Mar | Frontier Airlines | ||
| 10 Feb - 17 Feb | United | ||
| 06 Feb - 09 Feb | Alaska Airlines | ||
| 28 Feb - 08 Mar | Alaska Airlines | ||
| 24 Feb - 01 Mar | Aeromexico | ||
| 02 Feb - 09 Feb | United |
Also check the deals for one-way flights from Portland to San Juan in February.
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