Sacramento (SMF) to Ontario (ONT) flights
Southwest Airlines flies nonstop from Sacramento International Airport to Ontario International Airport, with about 41 flights a week in July 2026. The 390-mile flight takes about 1h 16m gate to gate.
- Distance
- 390 mi · 628 km
- Flight time
- 1h 16m
- Airlines
- 1
- Seats filled
- 60%
Airlines flying SMF to ONT
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Southwest Airlines | 41 | Boeing 737-700 / MAX 7, Boeing 737 MAX 8, Boeing 737-800 | 196,000 | 1h 16m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
SMF to ONT flight schedule
13 flight numbers flew this route in August 2026, 2 of them almost daily. The first usually leaves at 6:00am and the last at 9:25pm. 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 2528Southwest Airlines | 6:00am | 7:25am | 12 | 100% |
| WN 3717Southwest Airlines | 7:00am | 8:25am | 12 | 92% |
| WN 2405Southwest Airlines | 8:55am | 10:15am | 16 | 100% |
| WN 2882Southwest Airlines | 9:00am | 10:20am | 12 | 100% |
| WN 2638Southwest Airlines | 11:15am | 12:40pm | 24 | 92% |
| WN 1822Southwest Airlines | 11:50am | 1:10pm | 12 | 92% |
| WN 3089Southwest Airlines | 4:10pm | 5:35pm | 4 | n/a |
| WN 1473Southwest Airlines | 4:30pm | 5:50pm | 24 | 75% |
| WN 2291Southwest Airlines | 6:30pm | 7:55pm | 12 | 50% |
| WN 1190Southwest Airlines | 6:40pm | 8:05pm | 8 | n/a |
| WN 3722Southwest Airlines | 7:45pm | 9:10pm | 4 | n/a |
| WN 2208Southwest Airlines | 8:45pm | 10:10pm | 12 | 75% |
| WN 2409Southwest Airlines | 9:25pm | 10:50pm | 4 | n/a |
Is SMF to ONT on time?
From September 2025 to August 2026, 84% of 2,108 flights arrived within 15 minutes of schedule and 0.3% were cancelled. Flights leaving around 6am were the most punctual (96%), those around 4pm the least (73%). Most delay time was caused by late-arriving aircraft (67%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Southwest Airlines | 2,108 | 84% | 9 min | 0.3% |
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 | 65 | 97% | |
| 6am to 7am | 225 | 96% | |
| 7am to 8am | 50 | 96% | |
| 8am to 9am | 157 | 90% | |
| 9am to 10am | 181 | 94% | |
| 10am to 11am | 70 | 88% | |
| 11am to 12pm | 171 | 87% | |
| 12pm to 1pm | 126 | 84% | |
| 1pm to 2pm | 129 | 81% | |
| 2pm to 3pm | 83 | 85% | |
| 3pm to 4pm | 105 | 78% | |
| 4pm to 5pm | 151 | 73% | |
| 5pm to 6pm | 81 | 74% | |
| 6pm to 7pm | 218 | 80% | |
| 7pm to 8pm | 81 | 70% | |
| 8pm to 9pm | 191 | 73% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 176 | 16,152 | |
| September 2025 | 178 | 17,376 | |
| October 2025 | 181 | 19,324 | |
| November 2025 | 177 | 15,306 | |
| December 2025 | 180 | 16,733 | |
| January 2026 | 157 | 12,770 | |
| February 2026 | 155 | 14,122 | |
| March 2026 | 185 | 18,092 | |
| April 2026 | 184 | 17,194 | |
| May 2026 | 186 | 16,897 | |
| June 2026 | 176 | 16,814 | |
| July 2026 | 180 | 15,220 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.