Flight Reliability
F9 1601 · Frontier Airlines
Philadelphia → Las Vegas (PHL–LAS)
61
A Little Dicey
WanderNerd Reliability Score
- 74%
- Arrive within 15 minutes
- 16 min
- Average arrival delay
- 3.6%
- Cancelled
- 9 min early
- Median arrival delay
Based on 112 historical flights. Data through May 2026.
What the data says
The 9 AM–12 PM departure wins.
F9 1601 departing between 9 AM–12 PM arrived on time 82% of the time, versus 73% between 6–9 AM.
Saturday is the weak spot.
F9 1601 arrived on time 77% of the time on Sundays. On Saturdays: 68%.
A bit behind the PHL–LAS route.
F9 1601 arrived on time 74% of the time, versus 77% across the PHL–LAS route.
Keep a backup plan handy.
F9 1601 was cancelled 3.6% of the time. Typical for U.S. flights is around 1–2%.
The breakdown
- Mon68%(19 flights)
- Tue—(5 flights)
- Wed—(6 flights)
- Thu76%(21 flights)
- Fri70%(20 flights)
- Sat68%(19 flights)
- Sun77%(17 flights)
- 6–9 AM73%(96 flights)
- 9 AM–12 PM82%(11 flights)
83%
May
Jun 68% → May 83% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 68% | 19 |
| July 2025 | 71% | 21 |
| August 2025 | 95% | 21 |
| December 2025 | 33% | 12 |
| April 2026 | 88% | 17 |
| May 2026 | 83% | 12 |
- Departures on time
- 69%
- Diverted
- 0.9%
- Flights flown
- 107
- Months covered
- 8
Same route, other flights
Keep nerding
Based on 112 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.