Cheapest one-way flights from Portland to San Jose in September from 33€

AirHint found the following cheapest one-way flights from Portland (PDX) to San Jose (SJC) in September 2025 (see full year).

One-Way flights

22 Sep Southwest Airlines direct
09 Sep Spirit Airlines
13 Sep Southwest Airlines
08 Sep Spirit Airlines
16 Sep Spirit Airlines
06 Sep Delta
06 Sep Hawaiian Airlines direct
15 Sep Spirit Airlines
05 Sep Spirit Airlines
18 Sep Alaska Airlines direct

Also check the deals for return flights from Portland to San Jose in September.

Skyscanner

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.

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