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Cheapest one-way flights from Denver (DEN) to San Juan (SJU), October

Select a price to book. see full year.

Dates, airline, and price
Dates	Airline	Price
14 Oct	Frontier Airlines
02 Oct	Frontier Airlines
14 Oct	United Direct Flight
27 Oct	United Direct Flight
28 Oct	United Direct Flight
29 Oct	United Direct Flight
02 Oct	United Direct Flight
30 Oct	United Direct Flight
31 Oct	United Direct Flight

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

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Updated Jul 23, 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 Juan (SJU), October

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