Route Reliability
San Jose → Denver
SJC–DEN · 948 miles · San José Mineta International Airport to Denver International Airport
- 82%
- Arrive within 15 minutes
- 3 min
- Average arrival delay
- 0.4%
- Cancelled
- 2,594
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.United Airlines88%1,007 flights
- 2.Southwest Airlines78%1,524 flights
Not enough history to rank: Frontier Airlines (63 flights). We rank airlines only after 100 flights on the route.
What the data says
Morning flights do better here.
SJC–DEN flights departing between 6–9 AM arrived on time 95% of the time, versus 72% between 3–6 PM.
Thursday is the weak spot.
SJC–DEN flights arrived on time 88% of the time on Saturdays. On Thursdays: 79%.
United Airlines runs this route best.
United Airlines arrived on time 88% of the time on this route; Southwest Airlines managed 78%.
Slipping a little lately.
SJC–DEN flights arrived on time 84% of the time over the last three months in the data, compared with 89% in the three months before that.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon81%(392 flights)
- Tue83%(335 flights)
- Wed85%(352 flights)
- Thu79%(389 flights)
- Fri79%(391 flights)
- Sat88%(318 flights)
- Sun81%(399 flights)
- 6–9 AM95%(906 flights)
- 9 AM–12 PM83%(166 flights)
- 12–3 PM74%(731 flights)
- 3–6 PM72%(467 flights)
- 6–9 PM78%(305 flights)
- 9 PM–12 AM—(1 flights)
Jun 71% → May 79% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 71% | 235 |
| July 2025 | 69% | 245 |
| August 2025 | 73% | 231 |
| September 2025 | 83% | 263 |
| October 2025 | 87% | 244 |
| November 2025 | 90% | 247 |
| December 2025 | 84% | 215 |
| January 2026 | 93% | 188 |
| February 2026 | 89% | 174 |
| March 2026 | 86% | 172 |
| April 2026 | 87% | 166 |
| May 2026 | 79% | 196 |
Same trip, other airports
Keep nerding
Based on 2,594 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.