Cheapest one-way flights from Portland to San Jose in August from 98€

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

One-Way flights

24 Aug Frontier Airlines
20 Aug Frontier Airlines
30 Aug Southwest Airlines direct
26 Aug Frontier Airlines
29 Aug Spirit Airlines
29 Aug Southwest Airlines direct
26 Aug Southwest Airlines direct
22 Aug Southwest Airlines direct
18 Aug Alaska Airlines direct
20 Aug Southwest Airlines direct

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

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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