Flight Reliability
F9 4135 · Frontier Airlines
Miami → Cleveland (MIA–CLE)
Not enough history
Only 23 flights in the data. We don't publish a score on samples this small.
- 82%
- Arrive within 15 minutes
- 1 min early
- Average arrival delay
- 0%
- Cancelled
- 9 min early
- Median arrival delay
Based on 23 historical flights. Data through May 2026.We don't have enough history to call this one yet. Under 30 flights is an anecdote, not a statistic.
The breakdown
- Mon—(3 flights)
- Tue—(2 flights)
- Wed—(1 flights)
- Thu—(4 flights)
- Fri—(3 flights)
- Sat—(3 flights)
- Sun—(6 flights)
- 12–3 PM—(1 flights)
- 3–6 PM—(8 flights)
- 6–9 PM—(5 flights)
- 9 PM–12 AM—(8 flights)
- Departures on time
- 65%
- Diverted
- 4.3%
- Flights flown
- 22
- Months covered
- 3
Same route, other flights
Keep nerding
Based on 23 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.