Cheapest one-way flights from Denver to San Juan in August from 114€

AirHint found the following cheapest one-way flights from Denver (DEN) to San Juan (SJU) in August 2025 (see full year).

One-Way flights

07 Aug Frontier Airlines
02 Aug Frontier Airlines
03 Aug Frontier Airlines
19 Aug Frontier Airlines
24 Aug Frontier Airlines
25 Aug Frontier Airlines
30 Aug Frontier Airlines
26 Aug Frontier Airlines
01 Aug Frontier Airlines
30 Aug United direct

Also check the deals for return flights from Denver to San Juan in August.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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