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Cheapest one-way flights from San Diego (SAN) to San Jose (SJO), September

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Dates, airline, and price
Dates	Airline	Price
22 Sep	Frontier Airlines
10 Sep	Southwest Airlines

deals for return flights from San Diego to San Jose in September.

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Updated Aug 25, 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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Cheapest one-way flights from San Diego (SAN) to San Jose (SJO), September

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