Flight Reliability
F9 4552 · Frontier Airlines
Las Vegas → Miami (LAS–MIA)
75
Usually Fine
WanderNerd Reliability Score
- 67%
- Arrive within 15 minutes
- 11 min
- Average arrival delay
- 0%
- Cancelled
- 0 min
- Median arrival delay
Based on 92 historical flights. Data through May 2026.
What the data says
Sunday scaries are real for this one.
F9 4552 arrived on time 78% of the time on Fridays. On Sundays: 63%.
Lagging the LAS–MIA route.
F9 4552 arrived on time 67% of the time, versus 81% across the LAS–MIA route.
A bit behind the Frontier Airlines network.
F9 4552 arrived on time 67% of the time, versus 73% across the Frontier Airlines network.
Trending in the right direction.
F9 4552 arrived on time 75% of the time over the last three months in the data, compared with 61% in the three months before that.
The breakdown
- Mon—(6 flights)
- Tue—(6 flights)
- Wed65%(17 flights)
- Thu63%(19 flights)
- Fri78%(18 flights)
- Sat—(7 flights)
- Sun63%(19 flights)
73%
May
Jun 59% → May 73% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 59% | 17 |
| July 2025 | 56% | 18 |
| August 2025 | 70% | 10 |
| December 2025 | 57% | 14 |
| April 2026 | 94% | 17 |
| May 2026 | 73% | 11 |
- Departures on time
- 73%
- Diverted
- 0%
- Flights flown
- 92
- Months covered
- 7
Same route, other flights
Keep nerding
Based on 92 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.