Route Reliability
Denver → SUN
DEN–SUN · 557 miles · Denver International Airport to SUN Airport
- 81%
- Arrive within 15 minutes
- 7 min
- Average arrival delay
- 0%
- Cancelled
- 631
- Flights in the data
Data through May 2026.
United Airlines is the only airline in this data on this route, arriving on time 81% of the time across 631 flights. No comparison to make.
What the data says
Morning flights do better here.
DEN–SUN flights departing between 9 AM–12 PM arrived on time 88% of the time, versus 73% between 6–9 PM.
Saturday is the weak spot.
DEN–SUN flights arrived on time 87% of the time on Tuesdays. On Saturdays: 76%.
It basically never cancels.
Out of 631 scheduled flights, only 0.0% were cancelled.
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
- Mon80%(86 flights)
- Tue87%(87 flights)
- Wed81%(86 flights)
- Thu85%(89 flights)
- Fri78%(92 flights)
- Sat76%(91 flights)
- Sun80%(92 flights)
- 9 AM–12 PM88%(358 flights)
- 6–9 PM73%(265 flights)
Jun 67% → May 87% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 67% | 60 |
| July 2025 | 77% | 62 |
| August 2025 | 74% | 61 |
| September 2025 | 87% | 60 |
| October 2025 | 83% | 54 |
| November 2025 | 97% | 30 |
| December 2025 | 77% | 48 |
| January 2026 | 87% | 60 |
| February 2026 | 82% | 55 |
| March 2026 | 85% | 61 |
| April 2026 | 82% | 34 |
| May 2026 | 87% | 38 |
Keep nerding
Based on 631 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.