Flight Reliability
F9 3726 · Frontier Airlines
Denver → Cincinnati (DEN–CVG)
93
Nerd Approved
WanderNerd Reliability Score
- 85%
- Arrive within 15 minutes
- 3 min early
- Average arrival delay
- 0%
- Cancelled
- 7 min early
- Median arrival delay
Based on 41 historical flights. Data through May 2026.
What the data says
6–9 PM has a slight edge.
Departures between 6–9 PM arrived on time 92% of the time, against 85% between 3–6 PM.
Wednesday is the weak spot.
F9 3726 arrived on time 90% of the time on Tuesdays. On Wednesdays: 82%.
Better than the DEN–CVG route average.
F9 3726 arrived on time 85% of the time, versus 77% across the DEN–CVG route.
Better than the Frontier Airlines network average.
F9 3726 arrived on time 85% of the time, versus 73% across the Frontier Airlines network.
The breakdown
- Mon—(4 flights)
- Tue90%(10 flights)
- Wed82%(11 flights)
- Thu—(1 flights)
- Fri—(3 flights)
- Sat83%(12 flights)
- Sun—(0 flights)
- 6–9 AM—(2 flights)
- 3–6 PM85%(27 flights)
- 6–9 PM92%(12 flights)
87%
Nov
Sep 75% → Nov 87% on time
| Month | On-time percentage | Flights |
|---|---|---|
| September 2025 | 75% | 12 |
| October 2025 | 100% | 12 |
| November 2025 | 87% | 15 |
- Departures on time
- 83%
- Diverted
- 0%
- Flights flown
- 41
- Months covered
- 4
Same route, other flights
Keep nerding
Based on 41 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.