Flight Reliability
F9 3308 · Frontier Airlines
San Francisco → Los Angeles (SFO–LAX)
67
Usually Fine
WanderNerd Reliability Score
- 66%
- Arrive within 15 minutes
- 20 min
- Average arrival delay
- 0.5%
- Cancelled
- 1 min
- Median arrival delay
Based on 182 historical flights. Data through May 2026.
What the data says
Morning flights do better here.
F9 3308 departing between 6–9 AM arrived on time 100% of the time, versus 60% between 12–3 PM.
Friday is doing you no favors.
F9 3308 arrived on time 81% of the time on Tuesdays and just 52% on Fridays. That gap is worth planning around.
Lagging the SFO–LAX route.
F9 3308 arrived on time 66% of the time, versus 76% across the SFO–LAX route.
Lagging the Frontier Airlines network.
F9 3308 arrived on time 66% of the time, versus 73% across the Frontier Airlines network.
The breakdown
- Mon65%(34 flights)
- Tue81%(16 flights)
- Wed60%(15 flights)
- Thu52%(25 flights)
- Fri52%(33 flights)
- Sat76%(25 flights)
- Sun79%(33 flights)
- 6–9 AM100%(15 flights)
- 9 AM–12 PM62%(122 flights)
- 12–3 PM60%(30 flights)
- 3–6 PM—(8 flights)
- 6–9 PM—(6 flights)
80%
Nov
Jun 58% → Nov 80% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 58% | 26 |
| July 2025 | 58% | 31 |
| August 2025 | 70% | 27 |
| September 2025 | 57% | 21 |
| October 2025 | 57% | 28 |
| November 2025 | 80% | 15 |
- Departures on time
- 64%
- Diverted
- 0%
- Flights flown
- 181
- Months covered
- 11
Same route, other flights
Keep nerding
Based on 182 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.