Cheapest one-way PDX–SJU flights, August

AirHint found the following cheapest one-way flights from Portland (PDX) to San Juan (SJU) in August 2026 (see full year).

One-Way flights

03 Aug Southwest Airlines
04 Aug Southwest Airlines
06 Aug Southwest Airlines
07 Aug Southwest Airlines
10 Aug Southwest Airlines
11 Aug Southwest Airlines
12 Aug Southwest Airlines
13 Aug Southwest Airlines
14 Aug Southwest Airlines
05 Aug Southwest Airlines

Also check the deals for return flights from Portland to San Juan in August.

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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.

Book a cheap hotel in San Juan

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