Ontario (ONT) to Sacramento (SMF) flights
Southwest Airlines flies nonstop from Ontario International Airport to Sacramento 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
- 61%
Airlines flying ONT to SMF
| 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 | 198,851 | 1h 16m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
ONT to SMF flight schedule
16 flight numbers flew this route in August 2026, 2 of them almost daily. The first usually leaves at 6:10am and the last at 8:50pm. 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) |
|---|---|---|---|---|
| WN 2737Southwest Airlines | 6:10am | 7:35am | 20 | 100% |
| WN 694Southwest Airlines | 6:10am | 7:35am | 4 | n/a |
| WN 1121Southwest Airlines | 7:15am | 8:35am | 12 | 100% |
| WN 4416Southwest Airlines | 9:10am | 10:30am | 12 | 92% |
| WN 2842Southwest Airlines | 9:55am | 11:15am | 20 | 85% |
| WN 139Southwest Airlines | 10:35am | 11:55am | 4 | n/a |
| WN 3097Southwest Airlines | 11:20am | 12:45pm | 4 | n/a |
| WN 261Southwest Airlines | 12:00pm | 1:25pm | 12 | 92% |
| WN 3837Southwest Airlines | 1:15pm | 2:40pm | 12 | 100% |
| WN 1596Southwest Airlines | 3:00pm | 4:20pm | 8 | n/a |
| WN 3280Southwest Airlines | 4:10pm | 5:35pm | 12 | 67% |
| WN 1673Southwest Airlines | 4:45pm | 6:10pm | 8 | n/a |
| WN 2188Southwest Airlines | 6:30pm | 7:50pm | 12 | 83% |
| WN 3100Southwest Airlines | 7:05pm | 8:25pm | 12 | 83% |
| WN 3114Southwest Airlines | 8:10pm | 9:30pm | 12 | 73% |
| WN 2433Southwest Airlines | 8:50pm | 10:10pm | 4 | n/a |
Is ONT to SMF on time?
From September 2025 to August 2026, 85% of 2,119 flights arrived within 15 minutes of schedule and 0.3% were cancelled. Flights leaving around 8am were the most punctual (98%), those around 3pm the least (68%). Most delay time was caused by late-arriving aircraft (73%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Southwest Airlines | 2,119 | 85% | 8 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 | 43 | 98% | |
| 6am to 7am | 223 | 98% | |
| 7am to 8am | 106 | 96% | |
| 8am to 9am | 135 | 98% | |
| 9am to 10am | 144 | 95% | |
| 10am to 11am | 86 | 93% | |
| 11am to 12pm | 126 | 83% | |
| 12pm to 1pm | 159 | 89% | |
| 1pm to 2pm | 153 | 77% | |
| 2pm to 3pm | 55 | 91% | |
| 3pm to 4pm | 118 | 68% | |
| 4pm to 5pm | 112 | 81% | |
| 5pm to 6pm | 138 | 86% | |
| 6pm to 7pm | 184 | 73% | |
| 7pm to 8pm | 126 | 81% | |
| 8pm to 9pm | 193 | 73% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 177 | 16,448 | |
| September 2025 | 178 | 17,760 | |
| October 2025 | 181 | 18,639 | |
| November 2025 | 176 | 16,367 | |
| December 2025 | 179 | 16,704 | |
| January 2026 | 155 | 13,449 | |
| February 2026 | 152 | 14,453 | |
| March 2026 | 183 | 18,584 | |
| April 2026 | 183 | 17,568 | |
| May 2026 | 186 | 17,417 | |
| June 2026 | 177 | 16,844 | |
| July 2026 | 181 | 14,618 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.