Flight Reliability
F9 4402 · Frontier Airlines
San Francisco → Las Vegas (SFO–LAS)
78
Usually Fine
WanderNerd Reliability Score
- 72%
- Arrive within 15 minutes
- 14 min
- Average arrival delay
- 0%
- Cancelled
- 7 min early
- Median arrival delay
Based on 71 historical flights. Data through May 2026.
What the data says
The late departure is the smart one here.
F9 4402 departing between 9 PM–12 AM arrived on time 86% of the time, versus 64% between 6–9 PM.
Tuesdays have been rough.
F9 4402 arrived on time 82% of the time on Fridays and just 50% on Tuesdays. That gap is worth planning around.
A bit behind the SFO–LAS route.
F9 4402 arrived on time 72% of the time, versus 76% across the SFO–LAS route.
The breakdown
- Mon75%(12 flights)
- Tue50%(10 flights)
- Wed73%(11 flights)
- Thu—(9 flights)
- Fri82%(11 flights)
- Sat70%(10 flights)
- Sun—(8 flights)
- 3–6 PM—(7 flights)
- 6–9 PM64%(50 flights)
- 9 PM–12 AM86%(14 flights)
80%
May
Jan 100% → May 80% on time
| Month | On-time percentage | Flights |
|---|---|---|
| January 2026 | 100% | 18 |
| February 2026 | 65% | 26 |
| May 2026 | 80% | 10 |
- Departures on time
- 69%
- Diverted
- 0%
- Flights flown
- 71
- Months covered
- 6
Same route, other flights
Keep nerding
Based on 71 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.