Flight Reliability
F9 3646 · Frontier Airlines
Las Vegas → Austin (LAS–AUS)
87
Pretty Reliable
WanderNerd Reliability Score
- 88%
- Arrive within 15 minutes
- 4 min early
- Average arrival delay
- 2.2%
- Cancelled
- 14 min early
- Median arrival delay
Based on 135 historical flights. Data through May 2026.
What the data says
Morning-you made the right choice.
F9 3646 departing between 9 AM–12 PM arrived on time 94% of the time, versus 75% between 3–6 PM.
Sunday scaries are real for this one.
F9 3646 arrived on time 94% of the time on Saturdays and just 78% on Sundays. That gap is worth planning around.
Better than the LAS–AUS route average.
F9 3646 arrived on time 88% of the time, versus 75% across the LAS–AUS route.
Better than the Frontier Airlines network average.
F9 3646 arrived on time 88% of the time, versus 73% across the Frontier Airlines network.
The breakdown
- Mon87%(23 flights)
- Tue—(4 flights)
- Wed—(3 flights)
- Thu91%(32 flights)
- Fri93%(27 flights)
- Sat94%(16 flights)
- Sun78%(27 flights)
- 3–6 AM—(7 flights)
- 6–9 AM88%(96 flights)
- 9 AM–12 PM94%(17 flights)
- 3–6 PM75%(12 flights)
100%
Feb
Jun 85% → Feb 100% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 85% | 20 |
| July 2025 | 88% | 17 |
| August 2025 | 86% | 21 |
| October 2025 | 84% | 25 |
| January 2026 | 91% | 11 |
| February 2026 | 100% | 15 |
- Departures on time
- 88%
- Diverted
- 0%
- Flights flown
- 132
- Months covered
- 10
Same route, other flights
Keep nerding
Based on 135 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.