Flight Reliability
F9 4522 · Frontier Airlines
Burbank → Denver (BUR–DEN)
78
Usually Fine
WanderNerd Reliability Score
- 77%
- Arrive within 15 minutes
- 25 min
- Average arrival delay
- 0%
- Cancelled
- 12 min early
- Median arrival delay
Based on 52 historical flights. Data through May 2026.
What the data says
Morning-you made the right choice.
F9 4522 departing between 9 AM–12 PM arrived on time 85% of the time, versus 74% between 12–3 PM.
A bit behind the BUR–DEN route.
F9 4522 arrived on time 77% of the time, versus 84% across the BUR–DEN route.
A bit ahead of the Frontier Airlines network.
F9 4522 arrived on time 77% of the time, versus 73% across the Frontier Airlines network.
The breakdown
- Mon—(0 flights)
- Tue—(0 flights)
- Wed—(1 flights)
- Thu75%(24 flights)
- Fri—(0 flights)
- Sat—(0 flights)
- Sun78%(27 flights)
- 9 AM–12 PM85%(13 flights)
- 12–3 PM74%(39 flights)
- Departures on time
- 79%
- Diverted
- 0%
- Flights flown
- 52
- Months covered
- 6
Same route, other flights
Keep nerding
Based on 52 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.