Cheapest return flights from Denver (DEN) to San Juan (SJU), August

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
25 Aug 30 Aug Frontier Airlines
26 Aug 30 Aug Frontier Airlines
04 Aug 10 Aug Frontier Airlines
20 Aug 26 Aug Frontier Airlines
20 Aug 21 Aug Frontier Airlines
09 Aug 15 Aug Frontier Airlines
04 Aug 10 Aug United
Direct Flight
09 Aug 15 Aug United
Direct Flight
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deals for one-way flights from Denver to San Juan in August.

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Updated May 28, 2026.

About these fares

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