Flight Reliability
F9 4499 · Frontier Airlines
Los Angeles → Portland (LAX–PDX)
100
Nerd Approved
WanderNerd Reliability Score
- 98%
- Arrive within 15 minutes
- 15 min early
- Average arrival delay
- 0%
- Cancelled
- 18 min early
- Median arrival delay
Based on 44 historical flights. Data through May 2026.
What the data says
Thursday is the weak spot.
F9 4499 arrived on time 100% of the time on Sundays. On Thursdays: 92%.
Better than the LAX–PDX route average.
F9 4499 arrived on time 98% of the time, versus 86% across the LAX–PDX route.
Well ahead of the Frontier Airlines network.
F9 4499 arrived on time 98% of the time, versus 73% across the Frontier Airlines network.
The breakdown
- Mon—(8 flights)
- Tue—(0 flights)
- Wed—(0 flights)
- Thu92%(12 flights)
- Fri—(8 flights)
- Sat—(5 flights)
- Sun100%(11 flights)
100%
May
Mar 92% → May 100% on time
| Month | On-time percentage | Flights |
|---|---|---|
| March 2026 | 92% | 13 |
| April 2026 | 100% | 11 |
| May 2026 | 100% | 20 |
- Departures on time
- 93%
- Diverted
- 0%
- Flights flown
- 44
- Months covered
- 3
Same route, other flights
Keep nerding
Based on 44 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.