Route Reliability
SUN → Denver
SUN–DEN · 557 miles · SUN Airport to Denver International Airport
- 84%
- Arrive within 15 minutes
- 6 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 84% of the time across 631 flights. No comparison to make.
What the data says
Morning flights do better here.
SUN–DEN flights departing between 6–9 AM arrived on time 91% of the time, versus 79% between 12–3 PM.
Thursday is the weak spot.
SUN–DEN flights arrived on time 88% of the time on Saturdays. On Thursdays: 77%.
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
- Mon86%(90 flights)
- Tue83%(87 flights)
- Wed83%(87 flights)
- Thu77%(87 flights)
- Fri86%(91 flights)
- Sat88%(92 flights)
- Sun85%(94 flights)
- 6–9 AM91%(266 flights)
- 9 AM–12 PM—(4 flights)
- 12–3 PM79%(358 flights)
Jun 70% → May 84% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 70% | 60 |
| July 2025 | 77% | 60 |
| August 2025 | 74% | 61 |
| September 2025 | 88% | 60 |
| October 2025 | 88% | 56 |
| November 2025 | 93% | 30 |
| December 2025 | 83% | 48 |
| January 2026 | 94% | 62 |
| February 2026 | 84% | 56 |
| March 2026 | 90% | 62 |
| April 2026 | 89% | 36 |
| May 2026 | 84% | 37 |
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.