Austin (AUS) to Houston (IAH) flights
United Airlines, Mesa Airlines fly nonstop from Austin Bergstrom International Airport to George Bush Intercontinental Airport, with about 57 flights a week in July 2026. The 140-mile flight takes about 1h 8m gate to gate.
- Distance
- 140 mi · 225 km
- Flight time
- 1h 8m
- Airlines
- 2
- Seats filled
- 75%
Airlines flying AUS to IAH
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| United Airlines | 49 | Airbus A319, Airbus A320-100/200, Boeing 737-800 | 304,818 | 1h 8m |
| Mesa Airlines | 8 | Embraer E175 | 10,316 | 1h 10m |
| SkyWest AirlinesSeasonal or ended | n/a | Embraer E175, Bombardier CRJ200 | 2,753 | 1h 13m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
AUS to IAH flight schedule
11 flight numbers flew this route in August 2026, 8 of them almost daily. The first usually leaves at 5:30am and the last at 7:44pm. 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 1966United Airlines | 5:30am | 6:37am | 29 | 95% |
| UA 2393United Airlines | 7:00am | 8:13am | 30 | 62% |
| UA 2196United Airlines | 9:33am | 10:45am | 31 | 77% |
| UA 1747United Airlines | 12:12pm | 1:25pm | 31 | 72% |
| UA 334United Airlines | 2:24pm | 3:34pm | 20 | 85% |
| UA 6197United Airlines · operated by Mesa Airlines | 2:24pm | 3:38pm | 6 | n/a |
| UA 3992United Airlines · operated by Mesa Airlines | 4:10pm | 5:20pm | 21 | 77% |
| UA 4004United Airlines · operated by Mesa Airlines | 4:10pm | 5:25pm | 10 | 69% |
| UA 1326United Airlines | 5:44pm | 6:54pm | 31 | 69% |
| UA 3993United Airlines · operated by Mesa Airlines | 7:10pm | 8:20pm | 20 | 91% |
| UA 1871United Airlines | 7:44pm | 8:55pm | 8 | 84% |
Is AUS to IAH on time?
From September 2025 to August 2026, 77% of 2,861 flights arrived within 15 minutes of schedule and 1% were cancelled. Flights leaving around 5am were the most punctual (95%), those around 7am the least (65%). Most delay time was caused by air traffic control and airport congestion (44%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 2,861 | 77% | 15 min | 1% |
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 |
|---|---|---|---|
| 5am to 6am | 354 | 95% | |
| 7am to 8am | 363 | 65% | |
| 9am to 10am | 364 | 78% | |
| 12pm to 1pm | 363 | 74% | |
| 2pm to 3pm | 330 | 84% | |
| 4pm to 5pm | 364 | 69% | |
| 5pm to 6pm | 268 | 69% | |
| 6pm to 7pm | 95 | 68% | |
| 7pm to 8pm | 320 | 86% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 242 | 21,895 | |
| September 2025 | 238 | 24,955 | |
| October 2025 | 246 | 29,635 | |
| November 2025 | 228 | 25,643 | |
| December 2025 | 243 | 27,846 | |
| January 2026 | 235 | 23,284 | |
| February 2026 | 222 | 24,599 | |
| March 2026 | 252 | 28,418 | |
| April 2026 | 238 | 25,575 | |
| May 2026 | 244 | 28,081 | |
| June 2026 | 256 | 29,350 | |
| July 2026 | 257 | 30,555 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.