Route Reliability
San Juan → Denver
SJU–DEN · 2,733 miles · Luis Muñoz Marín International Airport to Denver International Airport
- 87%
- Arrive within 15 minutes
- 3 min early
- Average arrival delay
- 0.3%
- Cancelled
- 333
- Flights in the data
Data through May 2026.
United Airlines is the only airline in this data on this route, arriving on time 87% of the time across 333 flights. No comparison to make.
What the data says
Sunday scaries are real for this one.
SJU–DEN flights arrived on time 93% of the time on Thursdays. On Sundays: 79%.
It basically never cancels.
Out of 333 scheduled flights, only 0.3% were cancelled.
Trending in the right direction.
SJU–DEN flights arrived on time 95% of the time over the last three months in the data, compared with 87% in the three months before that.
The breakdown
- Mon87%(46 flights)
- Tue87%(45 flights)
- Wed87%(46 flights)
- Thu93%(45 flights)
- Fri89%(46 flights)
- Sat84%(51 flights)
- Sun79%(48 flights)
Jun 83% → May 94% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 83% | 30 |
| July 2025 | 80% | 30 |
| August 2025 | 58% | 19 |
| October 2025 | 86% | 29 |
| November 2025 | 87% | 30 |
| December 2025 | 93% | 30 |
| January 2026 | 83% | 30 |
| February 2026 | 86% | 28 |
| March 2026 | 100% | 31 |
| April 2026 | 90% | 30 |
| May 2026 | 94% | 31 |
Keep nerding
Based on 333 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.