Cheapest return flights from Denver to San Juan in December from 119€
AirHint found the following cheapest return flights from Denver (DEN) to San Juan (SJU)
in December 2025 (see full year ).
Return flights
05 Dec
- 10 Dec
Frontier Airlines
119 €
07 Dec
- 10 Dec
Frontier Airlines
119 €
07 Dec
- 14 Dec
Frontier Airlines
120 €
05 Dec
- 07 Dec
Frontier Airlines
120 €
05 Dec
- 12 Dec
Frontier Airlines
120 €
07 Dec
- 11 Dec
Frontier Airlines
132 €
05 Dec
- 08 Dec
Frontier Airlines
133 €
06 Dec
- 10 Dec
Frontier Airlines
181 €
04 Dec
- 06 Dec
Frontier Airlines
196 €
03 Dec
- 07 Dec
Frontier Airlines
196 €
31 Dec
- 13 Jan
Frontier Airlines
196 €
31 Dec
- 08 Jan
Frontier Airlines
245 €
27 Dec
- 08 Jan
Frontier Airlines
330 €
23 Dec
- 07 Jan
Frontier Airlines
404 €
22 Dec
- 05 Jan
Frontier Airlines
552 €
29 Dec
- 02 Jan
Frontier Airlines
552 €
26 Dec
- 03 Jan
Frontier Airlines
675 €
Also check the deals for one-way flights from Denver to San Juan in December .
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