AirHint found the following cheapest return flights from Portland (PDX) to San Juan (SJU) in March 2026 (see full year).
Return flights
| 29 Mar - 06 Apr | Alaska Airlines | ||
| 20 Mar - 28 Mar | Alaska Airlines |
Also check the deals for one-way flights from Portland to San Juan in March.
Powered by
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.
Find us on social media