Ontario (ONT) to Boise (BOI) flights
Horizon Air flies nonstop from Ontario International Airport to Boise Air Terminal/Gowen Field, with about 7 flights a week in July 2026. The 660-mile flight takes about 1h 54m gate to gate.
- Distance
- 660 mi · 1,062 km
- Flight time
- 1h 54m
- Airlines
- 1
- Seats filled
- 75%
Airlines flying ONT to BOI
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Horizon Air | 7 | Embraer E175 | 11,704 | 1h 54m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
ONT to BOI flight schedule
2 flight numbers flew this route in August 2026. The first usually leaves at 4:18pm and the last at 4:50pm. 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 2026Alaska Airlines · operated by Horizon Air | 4:18pm | 7:13pm | 18 | 79% |
| AS 2406Alaska Airlines · operated by Horizon Air | 4:50pm | 7:45pm | 13 | 69% |
Is ONT to BOI on time?
From September 2025 to August 2026, 82% of 237 flights arrived within 15 minutes of schedule and 0.8% were cancelled. Flights leaving around 2pm were the most punctual (91%), those around 4pm the least (77%). Most delay time was caused by late-arriving aircraft (74%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Alaska Airlines | 237 | 82% | 10 min | 0.8% |
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 |
|---|---|---|---|
| 2pm to 3pm | 21 | 91% | |
| 4pm to 5pm | 83 | 77% | |
| 6pm to 7pm | 35 | 79% | |
| 7pm to 8pm | 96 | 84% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| January 2026 | 25 | 848 | |
| February 2026 | 27 | 1,355 | |
| March 2026 | 30 | 1,779 | |
| April 2026 | 30 | 1,803 | |
| May 2026 | 31 | 1,904 | |
| June 2026 | 30 | 1,981 | |
| July 2026 | 33 | 2,152 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.