Flight Reliability
F9 3725 · Frontier Airlines
Cincinnati → Denver (CVG–DEN)
93
Nerd Approved
WanderNerd Reliability Score
- 88%
- Arrive within 15 minutes
- 4 min
- Average arrival delay
- 0.4%
- Cancelled
- 9 min early
- Median arrival delay
Based on 274 historical flights. Data through May 2026.
What the data says
The late departure is the smart one here.
F9 3725 departing between 6–9 PM arrived on time 95% of the time, versus 82% between 12–3 PM.
Skip Monday if you can.
F9 3725 arrived on time 97% of the time on Tuesdays. On Mondays: 83%.
A bit ahead of the CVG–DEN route.
F9 3725 arrived on time 88% of the time, versus 82% across the CVG–DEN route.
Well ahead of the Frontier Airlines network.
F9 3725 arrived on time 88% of the time, versus 73% across the Frontier Airlines network.
The breakdown
- Mon83%(46 flights)
- Tue97%(29 flights)
- Wed89%(26 flights)
- Thu86%(49 flights)
- Fri89%(46 flights)
- Sat83%(29 flights)
- Sun94%(47 flights)
- 6–9 AM89%(234 flights)
- 9 AM–12 PM—(4 flights)
- 12–3 PM82%(11 flights)
- 6–9 PM95%(21 flights)
- 9 PM–12 AM—(2 flights)
100%
May
Jun 90% → May 100% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 90% | 30 |
| July 2025 | 90% | 31 |
| August 2025 | 96% | 25 |
| September 2025 | 96% | 28 |
| October 2025 | 87% | 31 |
| November 2025 | 96% | 24 |
| December 2025 | 67% | 12 |
| January 2026 | 75% | 16 |
| February 2026 | 69% | 16 |
| March 2026 | 83% | 24 |
| April 2026 | 91% | 21 |
| May 2026 | 100% | 14 |
- Departures on time
- 89%
- Diverted
- 0.4%
- Flights flown
- 272
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 274 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.