Pittsburgh (PIT) to Houston (IAH) flights
United Airlines flies nonstop from Pittsburgh International Airport to George Bush Intercontinental Airport, with about 19 flights a week in July 2026. The 1,117-mile flight takes about 3h 7m gate to gate.
- Distance
- 1,117 mi · 1,798 km
- Flight time
- 3h 7m
- Airlines
- 1
- Seats filled
- 76%
Airlines flying PIT to IAH
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| United Airlines | 19 | Boeing 737-800, Boeing 737-700 / MAX 7, Boeing 737-900 | 87,421 | 3h 7m |
| Mesa AirlinesSeasonal or ended | n/a | Embraer E175 | 17,021 | 3h 8m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
PIT to IAH flight schedule
5 flight numbers flew this route in August 2026, 1 of them almost daily. The first usually leaves at 6:15am and the last at 5:03pm. 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 1859United Airlines | 6:15am | 8:18am | 31 | 94% |
| UA 1743United Airlines | 1:00pm | 3:03pm | 18 | 100% |
| UA 1964United Airlines | 1:05pm | 3:08pm | 6 | 94% |
| UA 1444United Airlines | 5:02pm | 7:05pm | 10 | 67% |
| UA 1563United Airlines | 5:03pm | 7:10pm | 18 | 79% |
Is PIT to IAH on time?
From September 2025 to August 2026, 87% of 1,035 flights arrived within 15 minutes of schedule and 0.4% were cancelled. Flights leaving around 6am were the most punctual (93%), those around 5pm the least (66%). Most delay time was caused by air traffic control and airport congestion (42%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 1,035 | 87% | 9 min | 0.4% |
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 |
|---|---|---|---|
| 6am to 7am | 363 | 93% | |
| 12pm to 1pm | 170 | 93% | |
| 1pm to 2pm | 149 | 93% | |
| 4pm to 5pm | 230 | 78% | |
| 5pm to 6pm | 103 | 66% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 89 | 7,839 | |
| September 2025 | 86 | 7,368 | |
| October 2025 | 94 | 9,904 | |
| November 2025 | 88 | 9,094 | |
| December 2025 | 78 | 9,154 | |
| January 2026 | 84 | 6,578 | |
| February 2026 | 78 | 6,970 | |
| March 2026 | 92 | 9,179 | |
| April 2026 | 90 | 8,916 | |
| May 2026 | 89 | 9,098 | |
| June 2026 | 82 | 10,237 | |
| July 2026 | 84 | 10,684 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.