Route Reliability
Las Vegas → Houston
LAS–IAH · 1,222 miles · Harry Reid International Airport to George Bush Intercontinental Airport
- 84%
- Arrive within 15 minutes
- 3 min
- Average arrival delay
- 1.0%
- Cancelled
- 3,483
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.United Airlines86%2,606 flights
- 2.Frontier Airlines79%291 flights
- 3.Spirit Airlines77%586 flights
What the data says
Morning-you made the right choice.
LAS–IAH flights departing between 6–9 AM arrived on time 93% of the time, versus 75% between 3–6 PM.
Friday is doing you no favors.
LAS–IAH flights arrived on time 89% of the time on Wednesdays. On Fridays: 80%.
United Airlines runs this route best.
United Airlines arrived on time 86% of the time on this route; Spirit Airlines managed 77%.
Recent months have been rougher.
LAS–IAH flights arrived on time 81% of the time over the last three months in the data, compared with 91% in the three months before that.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon81%(528 flights)
- Tue85%(422 flights)
- Wed89%(436 flights)
- Thu83%(519 flights)
- Fri80%(520 flights)
- Sat85%(472 flights)
- Sun84%(538 flights)
- 12–3 AM87%(571 flights)
- 6–9 AM93%(768 flights)
- 9 AM–12 PM85%(675 flights)
- 12–3 PM78%(655 flights)
- 3–6 PM75%(459 flights)
- 6–9 PM81%(261 flights)
- 9 PM–12 AM87%(46 flights)
Jun 73% → May 82% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 73% | 281 |
| July 2025 | 79% | 278 |
| August 2025 | 80% | 280 |
| September 2025 | 87% | 255 |
| October 2025 | 89% | 289 |
| November 2025 | 82% | 312 |
| December 2025 | 92% | 309 |
| January 2026 | 91% | 279 |
| February 2026 | 90% | 288 |
| March 2026 | 78% | 314 |
| April 2026 | 82% | 289 |
| May 2026 | 82% | 261 |
Same trip, other airports
Keep nerding
Based on 3,483 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.