Houston (HOU) to Las Vegas (LAS): On-Time Performance
Data through May 2026
Houston (HOU) to Las Vegas (LAS) effectively runs on two schedules. In January 2026, 90% of arrivals were on time; in July 2024 that fell to 63% — a 27-point seasonal swing. Across the full period the route averages 81% on-time against a national 78%. Morning departures also hold up better than evening ones (92% vs 72%), which matters most in the rough months.
- On-time
- 81%
- arrived <15 min late
- Avg delay
- 11 min
- completed flights
- Cancelled
- 0.6%
- Flights/day
- 5.7
- last 12 months
- Duration
- 3h 17m
- scheduled
- Distance
- 1,235 mi
Monthly on-time trend
Best time to fly from HOU to LAS
Aim for departures around 5 a.m. (99% on-time); avoid 9 p.m. departures (66%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 80% | 12 min |
| Tuesday | 83% | 11 min |
| Wednesday | 84% | 9 min |
| Thursday | 78% | 12 min |
| Friday | 78% | 13 min |
| Saturdaybest | 86% | 9 min |
| Sunday | 79% | 12 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft47%
- Airline operations31%
- National airspace system16%
- Weather6%
Frequently asked questions
- How often are flights from HOU to LAS delayed?
- 19% of HOU–LAS flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 11 minutes.
- What is the best time of day to fly from HOU to LAS?
- Departures around 5 a.m. have the best record (99% on-time), while departures around 9 p.m. have the worst (66%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from HOU to LAS?
- The scheduled HOU–LAS flight time averages 3h 17m over 1,235 miles. Actual arrival times vary — flights on this route land 15+ minutes late 19% of the time.
- How often are HOU to LAS flights cancelled?
- 0.6% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from HOU to LAS?
- July 2024 was the roughest month in this dataset, with only 63% of arrivals on time. The best was January 2026 at 90%. If your dates are flexible, that 27-point gap is worth planning around.
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Based on 4,153 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.