Ontario (ONT) to Phoenix (PHX) flights
Southwest Airlines, American Airlines fly nonstop from Ontario International Airport to Phoenix Sky Harbor International Airport, with about 53 flights a week in July 2026. The 325-mile flight takes about 1h 14m gate to gate.
- Distance
- 325 mi · 523 km
- Flight time
- 1h 14m
- Airlines
- 2
- Seats filled
- 70%
Airlines flying ONT to PHX
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Southwest Airlines | 33 | Boeing 737-700 / MAX 7, Boeing 737 MAX 8, Boeing 737-800 | 178,066 | 1h 11m |
| American Airlines | 21 | Boeing 737-800, Airbus A321, Airbus A319 | 154,746 | 1h 17m |
| SkyWest AirlinesSeasonal or ended | n/a | Embraer E175 | 3,994 | 1h 29m |
| Envoy AirSeasonal or ended | n/a | Embraer E175 | 2,867 | 1h 22m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
ONT to PHX flight schedule
15 flight numbers flew this route in August 2026, 3 of them almost daily. The first usually leaves at 5:15am and the last at 8:40pm. 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) |
|---|---|---|---|---|
| WN 901Southwest Airlines | 5:15am | 6:30am | 12 | 100% |
| AA 1194American Airlines | 6:15am | 7:38am | 31 | 94% |
| WN 503Southwest Airlines | 6:40am | 8:05am | 16 | 94% |
| WN 1774Southwest Airlines | 8:00am | 9:15am | 12 | 83% |
| WN 3087Southwest Airlines | 8:35am | 9:55am | 12 | 83% |
| WN 894Southwest Airlines | 10:05am | 11:25am | 4 | n/a |
| AA 2661American Airlines | 12:59pm | 2:25pm | 27 | 88% |
| WN 3876Southwest Airlines | 1:10pm | 2:35pm | 12 | 92% |
| AA 2244American Airlines | 1:11pm | 2:33pm | 4 | 86% |
| WN 2638Southwest Airlines | 2:30pm | 3:45pm | 4 | n/a |
| WN 3089Southwest Airlines | 2:40pm | 4:00pm | 24 | 75% |
| AA 6455American Airlines · operated by SkyWest Airlines | 4:07pm | 5:38pm | 16 | 69% |
| WN 2119Southwest Airlines | 4:50pm | 6:10pm | 12 | 50% |
| AA 1666American Airlines | 8:01pm | 9:20pm | 4 | 74% |
| WN 787Southwest Airlines | 8:40pm | 9:55pm | 16 | 73% |
Is ONT to PHX on time?
From September 2025 to August 2026, 82% of 3,011 flights arrived within 15 minutes of schedule and 0.6% were cancelled. Flights leaving around 5am were the most punctual (97%), those around 4pm the least (70%). Most delay time was caused by late-arriving aircraft (49%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Southwest Airlines | 1,615 | 81% | 11 min | 0.4% |
| American Airlines | 1,396 | 85% | 17 min | 0.9% |
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 | 300 | 97% | |
| 6am to 7am | 417 | 90% | |
| 8am to 9am | 158 | 91% | |
| 9am to 10am | 234 | 90% | |
| 10am to 11am | 96 | 80% | |
| 12pm to 1pm | 345 | 85% | |
| 1pm to 2pm | 217 | 84% | |
| 2pm to 3pm | 79 | 82% | |
| 3pm to 4pm | 183 | 72% | |
| 4pm to 5pm | 286 | 70% | |
| 5pm to 6pm | 158 | 77% | |
| 6pm to 7pm | 74 | 70% | |
| 7pm to 8pm | 273 | 75% | |
| 8pm to 9pm | 94 | 60% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 244 | 26,616 | |
| September 2025 | 231 | 26,468 | |
| October 2025 | 258 | 30,474 | |
| November 2025 | 267 | 27,692 | |
| December 2025 | 282 | 31,143 | |
| January 2026 | 260 | 26,488 | |
| February 2026 | 240 | 25,107 | |
| March 2026 | 288 | 33,600 | |
| April 2026 | 253 | 27,017 | |
| May 2026 | 254 | 28,097 | |
| June 2026 | 222 | 29,018 | |
| July 2026 | 237 | 28,390 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.