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Cheapest one-way flights from Denver (DEN) to San Jose (SJO), October

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Dates, airline, and price
Dates	Airline	Price
06 Oct	Frontier Airlines
30 Oct	United Direct Flight
31 Oct	United Direct Flight
01 Oct	Southwest Airlines
24 Oct	United
26 Oct	United
28 Oct	United
29 Oct	United
02 Oct	United
03 Oct	United

deals for return flights from Denver to San Jose in October.

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Updated Jul 18, 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 Denver (DEN) to San Jose (SJO), October

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