Houston (IAH) to Portland (PDX) flights
United Airlines, Alaska Airlines fly nonstop from George Bush Intercontinental Airport to Portland International Airport, with about 26 flights a week in July 2026. The 1,825-mile flight takes about 4h 28m gate to gate.
- Distance
- 1,825 mi · 2,937 km
- Flight time
- 4h 28m
- Airlines
- 2
- Seats filled
- 82%
Airlines flying IAH to PDX
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| United Airlines | 19 | Boeing 737 MAX 9, Boeing 737-900ER, Boeing 737 MAX 8 | 125,643 | 4h 28m |
| Alaska Airlines | 7 | Boeing 737-900ER, Boeing 737 MAX 9, Boeing 737-800 | 44,653 | 4h 27m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
IAH to PDX flight schedule
4 flight numbers flew this route in August 2026, 3 of them almost daily. The first usually leaves at 9:30am and the last at 8:24pm. 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 740United Airlines | 9:30am | 11:59am | 31 | 87% |
| UA 1964United Airlines | 4:47pm | 7:18pm | 10 | 83% |
| AS 1421Alaska Airlines | 6:19pm | 8:50pm | 31 | 78% |
| UA 1420United Airlines | 8:24pm | 10:59pm | 21 | 77% |
Is IAH to PDX on time?
From September 2025 to August 2026, 81% of 1,209 flights arrived within 15 minutes of schedule and 0.5% were cancelled. Flights leaving around 9am were the most punctual (88%), those around 5pm the least (74%). Most delay time was caused by late-arriving aircraft (50%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 856 | 82% | 12 min | 0.2% |
| Alaska Airlines | 353 | 78% | 15 min | 1.1% |
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 |
|---|---|---|---|
| 9am to 10am | 317 | 88% | |
| 10am to 11am | 47 | 79% | |
| 2pm to 3pm | 35 | 91% | |
| 4pm to 5pm | 150 | 83% | |
| 5pm to 6pm | 215 | 74% | |
| 6pm to 7pm | 104 | 80% | |
| 7pm to 8pm | 54 | 72% | |
| 8pm to 9pm | 286 | 78% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 110 | 15,589 | |
| September 2025 | 96 | 11,455 | |
| October 2025 | 116 | 15,433 | |
| November 2025 | 90 | 12,230 | |
| December 2025 | 106 | 14,922 | |
| January 2026 | 93 | 12,832 | |
| February 2026 | 80 | 10,935 | |
| March 2026 | 89 | 12,885 | |
| April 2026 | 89 | 12,197 | |
| May 2026 | 118 | 16,889 | |
| June 2026 | 115 | 17,229 | |
| July 2026 | 117 | 17,700 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.