AirHint found the following cheapest one-way flights from Denver (DEN) to San Jose (SJO) in April 2026 (see full year).
One-Way flights
| 13 Apr | Frontier Airlines | ||
| 22 Apr | United | ||
| 15 Apr | United | ||
| 07 Apr | United | ||
| 01 Apr | United | ||
| 06 Apr | United | ||
| 05 Apr | Copa | ||
| 08 Apr | Copa | ||
| 18 Apr | Copa | ||
| 19 Apr | Copa |
Also check the deals for return flights from Denver to San Jose in April.
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