Flight Reliability
F9 1966 · Frontier Airlines
Las Vegas → Houston (LAS–IAH)
82
Pretty Reliable
WanderNerd Reliability Score
- 74%
- Arrive within 15 minutes
- 9 min
- Average arrival delay
- 0%
- Cancelled
- 8 min early
- Median arrival delay
Based on 90 historical flights. Data through May 2026.
What the data says
The 3–6 PM departure wins.
F9 1966 departing between 3–6 PM arrived on time 83% of the time, versus 60% between 9 AM–12 PM.
Mondays have been rough.
F9 1966 arrived on time 78% of the time on Sundays and just 57% on Mondays. That gap is worth planning around.
Lagging the LAS–IAH route.
F9 1966 arrived on time 74% of the time, versus 84% across the LAS–IAH route.
The breakdown
- Mon57%(14 flights)
- Tue—(3 flights)
- Wed—(6 flights)
- Thu67%(18 flights)
- Fri78%(18 flights)
- Sat—(8 flights)
- Sun78%(23 flights)
- 9 AM–12 PM60%(10 flights)
- 12–3 PM73%(51 flights)
- 3–6 PM83%(29 flights)
73%
May
Jan 92% → May 73% on time
| Month | On-time percentage | Flights |
|---|---|---|
| January 2026 | 92% | 12 |
| February 2026 | 100% | 11 |
| March 2026 | 69% | 13 |
| April 2026 | 67% | 24 |
| May 2026 | 73% | 22 |
- Departures on time
- 70%
- Diverted
- 0%
- Flights flown
- 90
- Months covered
- 6
Same route, other flights
Keep nerding
Based on 90 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.