Cheapest return flights from Denver to San Juan in December from 335€

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

Return flights

01 Dec - 08 Dec Southwest Airlines
08 Dec - 14 Dec Southwest Airlines
10 Dec - 22 Dec Southwest Airlines
01 Dec - 07 Dec Southwest Airlines
20 Dec - 07 Jan Southwest Airlines
22 Dec - 06 Jan Delta
19 Dec - 07 Jan Southwest Airlines
29 Dec - 04 Jan 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.

Book a cheap hotel in San Juan

Cheap car rent in San Juan

Feel free to contact us with any feedback or request another flight research.