Houston (IAH) to Las Vegas (LAS) flights
United Airlines, Frontier Airlines fly nonstop from George Bush Intercontinental Airport to Harry Reid International Airport, with about 59 flights a week in July 2026. The 1,222-mile flight takes about 3h 15m gate to gate.
- Distance
- 1,222 mi · 1,967 km
- Flight time
- 3h 15m
- Airlines
- 2
- Seats filled
- 83%
Airlines flying IAH to LAS
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| United Airlines | 46 | Boeing 737 MAX 9, Boeing 737-900, Boeing 737-800 | 376,089 | 3h 16m |
| Frontier Airlines | 13 | Airbus A321, Airbus A320neo, Airbus A320-100/200 | 65,733 | 3h 16m |
| Spirit AirlinesCeased operations 2026-05-02 | n/a | Airbus A320-100/200, Airbus A321, Airbus A320neo | 72,320 | 3h 9m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
IAH to LAS flight schedule
10 flight numbers flew this route in August 2026, 9 of them almost daily. The first usually leaves at 7:30am and the last at 8:43pm. Times are local and can change; check with the airline before you book.
| Flight | Departs | Arrives | Days flown in August 2026 | On time (12 months) |
|---|---|---|---|---|
| UA 1264United Airlines | 7:30am | 8:49am | 28 | 95% |
| UA 1799United Airlines | 10:10am | 11:29am | 31 | 88% |
| UA 1524United Airlines | 11:56am | 1:15pm | 31 | 89% |
| F9 4131Frontier Airlines | 1:53pm | 3:05pm | 31 | 76% |
| UA 1971United Airlines | 2:22pm | 3:41pm | 31 | 85% |
| UA 2190United Airlines | 5:05pm | 6:24pm | 21 | 84% |
| UA 2658United Airlines | 5:33pm | 6:51pm | 10 | 76% |
| UA 2406United Airlines | 6:10pm | 7:29pm | 22 | 77% |
| UA 1360United Airlines | 8:27pm | 9:50pm | 29 | 68% |
| F9 1965Frontier Airlines | 8:43pm | 9:58pm | 31 | 56% |
Is IAH to LAS on time?
From September 2025 to August 2026, 83% of 3,409 flights arrived within 15 minutes of schedule and 0.9% were cancelled. Flights leaving around 7am were the most punctual (94%), those around 8pm the least (71%). Most delay time was caused by late-arriving aircraft (38%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 2,598 | 85% | 10 min | 0.3% |
| Frontier Airlines | 410 | 70% | 32 min | 2.9% |
| Spirit Airlines | 401 | 80% | 15 min | 2.5% |
Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.
On-time arrivals by departure time
| Scheduled departure | Flights | On time, relative | On time |
|---|---|---|---|
| 7am to 8am | 374 | 94% | |
| 9am to 10am | 358 | 89% | |
| 10am to 11am | 122 | 80% | |
| 11am to 12pm | 174 | 92% | |
| 12pm to 1pm | 203 | 86% | |
| 1pm to 2pm | 167 | 83% | |
| 2pm to 3pm | 367 | 86% | |
| 4pm to 5pm | 323 | 85% | |
| 5pm to 6pm | 114 | 76% | |
| 6pm to 7pm | 349 | 77% | |
| 8pm to 9pm | 426 | 71% | |
| 9pm to 10pm | 232 | 78% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 285 | 41,630 | |
| September 2025 | 254 | 39,207 | |
| October 2025 | 292 | 44,744 | |
| November 2025 | 311 | 46,427 | |
| December 2025 | 307 | 45,516 | |
| January 2026 | 280 | 40,041 | |
| February 2026 | 287 | 42,969 | |
| March 2026 | 315 | 48,736 | |
| April 2026 | 291 | 42,880 | |
| May 2026 | 262 | 42,520 | |
| June 2026 | 257 | 39,700 | |
| July 2026 | 261 | 39,772 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.