Flight Reliability
F9 4233 · Frontier Airlines
Salt Lake City → Los Angeles (SLC–LAX)
91
Nerd Approved
WanderNerd Reliability Score
- 83%
- Arrive within 15 minutes
- 3 min
- Average arrival delay
- 0%
- Cancelled
- 13 min early
- Median arrival delay
Based on 36 historical flights. Data through May 2026.
What the data says
A bit behind the SLC–LAX route.
F9 4233 arrived on time 83% of the time, versus 87% across the SLC–LAX route.
Better than the Frontier Airlines network average.
F9 4233 arrived on time 83% of the time, versus 73% across the Frontier Airlines network.
The breakdown
- Mon—(6 flights)
- Tue—(5 flights)
- Wed—(4 flights)
- Thu—(6 flights)
- Fri—(6 flights)
- Sat—(3 flights)
- Sun—(6 flights)
- 6–9 AM88%(24 flights)
- 9 AM–12 PM—(3 flights)
- 12–3 PM—(9 flights)
- Departures on time
- 86%
- Diverted
- 0%
- Flights flown
- 36
- Months covered
- 6
Same route, other flights
Keep nerding
Based on 36 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.