Flight Reliability
F9 4146 · Frontier Airlines
Los Angeles → Orlando (LAX–MCO)
34
Bring Snacks
WanderNerd Reliability Score
- 49%
- Arrive within 15 minutes
- 49 min
- Average arrival delay
- 0.9%
- Cancelled
- 17 min
- Median arrival delay
Based on 225 historical flights. Data through May 2026.
What the data says
The late departure is the smart one here.
F9 4146 departing between 9 PM–12 AM arrived on time 54% of the time, versus 45% between 12–3 PM.
Thursdays have been rough.
F9 4146 arrived on time 60% of the time on Saturdays and just 31% on Thursdays. That gap is worth planning around.
Well behind the LAX–MCO route.
F9 4146 arrived on time 49% of the time, versus 78% across the LAX–MCO route.
Well behind the Frontier Airlines network.
F9 4146 arrived on time 49% of the time, versus 73% across the Frontier Airlines network.
The breakdown
- Mon56%(34 flights)
- Tue59%(27 flights)
- Wed54%(26 flights)
- Thu31%(35 flights)
- Fri50%(36 flights)
- Sat60%(30 flights)
- Sun37%(35 flights)
- 12–3 PM45%(123 flights)
- 9 PM–12 AM54%(100 flights)
47%
May
Jun 53% → May 47% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 53% | 19 |
| July 2025 | 23% | 31 |
| August 2025 | 50% | 30 |
| September 2025 | 67% | 18 |
| October 2025 | 44% | 25 |
| November 2025 | 73% | 11 |
| December 2025 | 40% | 15 |
| March 2026 | 40% | 25 |
| April 2026 | 77% | 30 |
| May 2026 | 47% | 15 |
- Departures on time
- 47%
- Diverted
- 0%
- Flights flown
- 223
- Months covered
- 11
Same route, other flights
Keep nerding
Based on 225 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.