Flight Reliability
F9 1993 · Frontier Airlines
Denver → Las Vegas (DEN–LAS)
85
Pretty Reliable
WanderNerd Reliability Score
- 78%
- Arrive within 15 minutes
- 7 min
- Average arrival delay
- 0.3%
- Cancelled
- 6 min early
- Median arrival delay
Based on 311 historical flights. Data through May 2026.
What the data says
12–3 PM has a slight edge.
Departures between 12–3 PM arrived on time 82% of the time, against 78% between 9 AM–12 PM.
Mondays have been rough.
F9 1993 arrived on time 86% of the time on Thursdays and just 67% on Mondays. That gap is worth planning around.
A bit ahead of the Frontier Airlines network.
F9 1993 arrived on time 78% of the time, versus 73% across the Frontier Airlines network.
It basically never cancels.
Out of 311 scheduled flights, only 0.3% were cancelled.
The breakdown
- Mon67%(42 flights)
- Tue77%(48 flights)
- Wed85%(48 flights)
- Thu86%(42 flights)
- Fri71%(41 flights)
- Sat83%(46 flights)
- Sun79%(43 flights)
- 9 AM–12 PM78%(265 flights)
- 12–3 PM82%(45 flights)
94%
May
Jun 59% → May 94% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 59% | 17 |
| July 2025 | 64% | 14 |
| August 2025 | 70% | 20 |
| September 2025 | 73% | 26 |
| October 2025 | 77% | 30 |
| November 2025 | 83% | 30 |
| December 2025 | 71% | 31 |
| January 2026 | 81% | 26 |
| February 2026 | 92% | 26 |
| March 2026 | 83% | 29 |
| April 2026 | 77% | 30 |
| May 2026 | 94% | 31 |
- Departures on time
- 76%
- Diverted
- 0%
- Flights flown
- 310
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 311 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.