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

10 dates in October, from $ 178. Book in one tap, or check whether to buy now or wait.

One-wayReturn
Dates, airline, and price
Dates Airline Price
23 Oct Frontier Airlines
19 Oct United
24 Oct United
30 Oct United
25 Oct United
31 Oct United
30 Oct United
Direct Flight
16 Oct Frontier Airlines
31 Oct United
Direct Flight
29 Oct Copa
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Deals for return flights from Denver to San Jose in October.

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Updated Oct 12, 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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