Portland (PDX) to Ontario (ONT) flights
Horizon Air, Alaska Airlines fly nonstop from Portland International Airport to Ontario International Airport, with about 21 flights a week in July 2026. The 838-mile flight takes about 2h 18m gate to gate.
- Distance
- 838 mi · 1,349 km
- Flight time
- 2h 18m
- Airlines
- 2
- Seats filled
- 77%
Airlines flying PDX to ONT
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Horizon Air | 12 | Embraer E175 | 35,126 | 2h 18m |
| Alaska Airlines | 9 | Boeing 737-900ER, Boeing 737 MAX 9, Boeing 737-800 | 53,819 | 2h 17m |
| SkyWest AirlinesSeasonal or ended | n/a | Embraer E175 | 4,462 | 2h 25m |
| Frontier AirlinesSeasonal or ended | n/a | Airbus A320neo, Airbus A321, Airbus A320-100/200 | 9,960 | 2h 16m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
PDX to ONT flight schedule
6 flight numbers flew this route in August 2026, 1 of them almost daily. The first usually leaves at 7:15am and the last at 9:30pm. 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) |
|---|---|---|---|---|
| AS 2170Alaska Airlines · operated by Horizon Air | 7:15am | 9:48am | 5 | n/a |
| AS 720Alaska Airlines | 7:18am | 9:51am | 8 | n/a |
| AS 1449Alaska Airlines | 7:36am | 9:56am | 18 | 93% |
| AS 2093Alaska Airlines · operated by Horizon Air | 2:30pm | 4:52pm | 30 | 89% |
| AS 97Alaska Airlines | 5:53pm | 8:24pm | 13 | 81% |
| AS 2396Alaska Airlines · operated by Horizon Air | 9:30pm | 11:52pm | 17 | 75% |
Is PDX to ONT on time?
From September 2025 to August 2026, 86% of 1,066 flights arrived within 15 minutes of schedule and 0.9% were cancelled. Flights leaving around 7am were the most punctual (93%), those around 9pm the least (79%). Most delay time was caused by the airline (crew, maintenance, cleaning, fuelling) (53%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Alaska Airlines | 1,027 | 86% | 7 min | 1% |
| Frontier Airlines | 39 | 85% | 13 min | 0% |
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 | 198 | 93% | |
| 8am to 9am | 63 | 92% | |
| 9am to 10am | 30 | 90% | |
| 10am to 11am | 74 | 89% | |
| 12pm to 1pm | 41 | 98% | |
| 2pm to 3pm | 286 | 83% | |
| 5pm to 6pm | 101 | 86% | |
| 7pm to 8pm | 25 | 84% | |
| 9pm to 10pm | 233 | 79% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 108 | 10,877 | |
| September 2025 | 90 | 8,141 | |
| October 2025 | 97 | 9,192 | |
| November 2025 | 94 | 10,523 | |
| December 2025 | 76 | 8,606 | |
| January 2026 | 92 | 8,064 | |
| February 2026 | 73 | 6,892 | |
| March 2026 | 87 | 7,907 | |
| April 2026 | 90 | 8,337 | |
| May 2026 | 89 | 7,033 | |
| June 2026 | 89 | 9,219 | |
| July 2026 | 92 | 8,743 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.