Cheapest return flights from Denver to San Juan in December from 416€

AirHint found the following cheapest return flights from Denver (DEN) to San Juan (SJU) in December 2025 (see full year).

Return flights

01 Dec - 05 Dec Southwest Airlines
22 Dec - 30 Dec United

Also check the deals for one-way flights from Denver to San Juan in December.

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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