Flight Reliability
F9 4519 · Frontier Airlines
Cleveland → Nashville (CLE–BNA)
79
Usually Fine
WanderNerd Reliability Score
- 84%
- Arrive within 15 minutes
- 5 min
- Average arrival delay
- 1.6%
- Cancelled
- 7 min early
- Median arrival delay
Based on 64 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 91% of the time, against 88% between 6–9 AM.
Friday is doing you no favors.
F9 4519 arrived on time 92% of the time on Mondays. On Fridays: 85%.
Better than the Frontier Airlines network average.
F9 4519 arrived on time 84% of the time, versus 73% across the Frontier Airlines network.
The breakdown
- Mon92%(26 flights)
- Tue—(3 flights)
- Wed—(0 flights)
- Thu—(2 flights)
- Fri85%(26 flights)
- Sat—(2 flights)
- Sun—(3 flights)
- 6–9 AM88%(24 flights)
- 9 AM–12 PM—(6 flights)
- 12–3 PM91%(23 flights)
- 3–6 PM—(8 flights)
- 6–9 PM—(1 flights)
64%
Nov
Aug 100% → Nov 64% on time
| Month | On-time percentage | Flights |
|---|---|---|
| August 2025 | 100% | 11 |
| October 2025 | 80% | 10 |
| November 2025 | 64% | 11 |
- Departures on time
- 89%
- Diverted
- 1.6%
- Flights flown
- 62
- Months covered
- 8
Same route, other flights
Keep nerding
Based on 64 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.