Houston (IAH) to Austin (AUS) flights
United Airlines, Mesa Airlines fly nonstop from George Bush Intercontinental Airport to Austin Bergstrom International Airport, with about 55 flights a week in July 2026. The 140-mile flight takes about 1h 0m gate to gate.
- Distance
- 140 mi · 225 km
- Flight time
- 1h 0m
- Airlines
- 2
- Seats filled
- 73%
Airlines flying IAH to AUS
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| United Airlines | 47 | Airbus A319, Airbus A320-100/200, Boeing 737-900ER | 291,495 | 1h 0m |
| Mesa Airlines | 7 | Embraer E175 | 9,667 | 1h 0m |
| SkyWest AirlinesSeasonal or ended | n/a | Embraer E175, Bombardier CRJ200, Bombardier CRJ550 | 2,757 | 1h 5m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
IAH to AUS flight schedule
12 flight numbers flew this route in August 2026, 7 of them almost daily. The first usually leaves at 7:34am and the last at 10:15pm. 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 1287United Airlines | 7:34am | 8:37am | 21 | 95% |
| UA 2016United Airlines | 7:35am | 8:39am | 10 | 94% |
| UA 1823United Airlines | 10:00am | 11:06am | 31 | 79% |
| UA 1859United Airlines | 12:08pm | 1:12pm | 22 | 83% |
| UA 6200United Airlines · operated by Mesa Airlines | 12:08pm | 1:14pm | 6 | n/a |
| UA 4073United Airlines · operated by Mesa Airlines | 2:20pm | 3:26pm | 21 | 81% |
| UA 6118United Airlines · operated by Mesa Airlines | 2:20pm | 3:29pm | 10 | 78% |
| UA 1711United Airlines | 4:20pm | 5:27pm | 8 | 69% |
| UA 4041United Airlines · operated by Mesa Airlines | 4:50pm | 5:55pm | 18 | 89% |
| UA 2674United Airlines | 6:50pm | 7:57pm | 31 | 65% |
| UA 2621United Airlines | 8:00pm | 9:07pm | 31 | 74% |
| UA 1179United Airlines | 10:15pm | 11:14pm | 29 | 81% |
Is IAH to AUS on time?
From September 2025 to August 2026, 80% of 2,862 flights arrived within 15 minutes of schedule and 0.7% were cancelled. Flights leaving around 7am were the most punctual (92%), those around 4pm the least (70%). Most delay time was caused by late-arriving aircraft (39%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 2,862 | 80% | 13 min | 0.7% |
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 | 360 | 92% | |
| 10am to 11am | 340 | 84% | |
| 11am to 12pm | 68 | 84% | |
| 12pm to 1pm | 296 | 83% | |
| 2pm to 3pm | 364 | 82% | |
| 4pm to 5pm | 345 | 70% | |
| 6pm to 7pm | 358 | 77% | |
| 8pm to 9pm | 345 | 75% | |
| 9pm to 10pm | 149 | 83% | |
| 10pm to 11pm | 166 | 78% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 244 | 22,902 | |
| September 2025 | 238 | 25,276 | |
| October 2025 | 245 | 28,128 | |
| November 2025 | 228 | 23,780 | |
| December 2025 | 242 | 25,474 | |
| January 2026 | 236 | 24,085 | |
| February 2026 | 220 | 23,327 | |
| March 2026 | 244 | 26,532 | |
| April 2026 | 239 | 24,389 | |
| May 2026 | 246 | 26,924 | |
| June 2026 | 237 | 26,480 | |
| July 2026 | 243 | 27,963 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.