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

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

One-Way flights

10 Sep United direct
30 Sep United direct
22 Sep United direct
23 Sep United direct
20 Sep United direct
24 Sep United direct
03 Sep United direct
16 Sep Hawaiian Airlines direct
29 Sep Delta
13 Sep Delta

Also check the deals for return flights from Portland to San Francisco 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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