Cheapest return flights from Portland (PDX) to San Francisco (SFO), August

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
26 Aug 02 Sep Frontier Airlines
29 Aug 01 Sep Frontier Airlines
30 Aug 06 Sep Frontier Airlines
28 Aug 31 Aug Frontier Airlines
28 Aug 30 Aug Frontier Airlines
27 Aug 29 Aug Frontier Airlines
29 Aug 01 Sep Alaska Airlines
Direct Flight
26 Aug 02 Sep Alaska Airlines
Direct Flight
30 Aug 06 Sep United
Direct Flight
28 Aug 31 Aug Alaska Airlines
Direct Flight
26 Aug 05 Sep Alaska Airlines
Direct Flight
26 Aug 26 Aug Alaska Airlines
Direct Flight
28 Aug 30 Aug Alaska Airlines
Direct Flight
27 Aug 29 Aug Alaska Airlines
Direct Flight
29 Aug 30 Aug Southwest Airlines
26 Aug 29 Aug Alaska Airlines
Direct Flight
29 Aug 30 Aug United
Direct Flight
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deals for one-way flights from Portland to San Francisco in August.

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Updated Aug 26, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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