Flight Reliability
F9 4573 · Frontier Airlines
Charlotte → Cleveland (CLT–CLE)
65
Usually Fine
WanderNerd Reliability Score
- 72%
- Arrive within 15 minutes
- 16 min
- Average arrival delay
- 2.9%
- Cancelled
- 8 min early
- Median arrival delay
Based on 69 historical flights. Data through May 2026.
What the data says
3–6 PM has a slight edge.
Departures between 3–6 PM arrived on time 75% of the time, against 69% between 6–9 PM.
Skip Thursday if you can.
F9 4573 arrived on time 77% of the time on Tuesdays. On Thursdays: 67%.
A bit behind the CLT–CLE route.
F9 4573 arrived on time 72% of the time, versus 75% across the CLT–CLE route.
The breakdown
- Mon73%(15 flights)
- Tue77%(13 flights)
- Wed—(0 flights)
- Thu67%(12 flights)
- Fri75%(12 flights)
- Sat—(2 flights)
- Sun69%(13 flights)
- 3–6 PM75%(28 flights)
- 6–9 PM69%(39 flights)
50%
Nov
Aug 73% → Nov 50% on time
| Month | On-time percentage | Flights |
|---|---|---|
| August 2025 | 73% | 11 |
| September 2025 | 100% | 13 |
| October 2025 | 50% | 12 |
| November 2025 | 50% | 10 |
- Departures on time
- 67%
- Diverted
- 0%
- Flights flown
- 67
- Months covered
- 9
Same route, other flights
Keep nerding
Based on 69 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.