Ontario (ONT) to Las Vegas (LAS) flights
Southwest Airlines, Frontier Airlines fly nonstop from Ontario International Airport to Harry Reid International Airport, with about 47 flights a week in July 2026. The 197-mile flight takes about 1h 2m gate to gate.
- Distance
- 197 mi · 317 km
- Flight time
- 1h 2m
- Airlines
- 2
- Seats filled
- 63%
Airlines flying ONT to LAS
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Southwest Airlines | 34 | Boeing 737-700 / MAX 7, Boeing 737 MAX 8, Boeing 737-800 | 183,878 | 59m |
| Frontier Airlines | 14 | Airbus A320neo, Airbus A321, Airbus A320-100/200 | 87,490 | 1h 10m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
ONT to LAS flight schedule
17 flight numbers flew this route in August 2026, 3 of them almost daily. The first usually leaves at 5:40am and the last at 10:17pm. 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 3080Southwest Airlines | 5:40am | 6:45am | 24 | 96% |
| WN 2495Southwest Airlines | 6:40am | 7:55am | 4 | n/a |
| WN 927Southwest Airlines | 7:45am | 8:50am | 8 | n/a |
| WN 2235Southwest Airlines | 8:30am | 9:40am | 12 | 92% |
| WN 2200Southwest Airlines | 9:10am | 10:15am | 4 | n/a |
| WN 4314Southwest Airlines | 9:40am | 10:45am | 8 | n/a |
| WN 2142Southwest Airlines | 11:00am | 12:05pm | 4 | n/a |
| F9 2232Frontier Airlines | 11:47am | 12:57pm | 27 | 80% |
| WN 2158Southwest Airlines | 12:35pm | 1:40pm | 12 | 58% |
| WN 1911Southwest Airlines | 1:45pm | 2:50pm | 4 | n/a |
| WN 554Southwest Airlines | 2:10pm | 3:25pm | 8 | n/a |
| F9 4758Frontier Airlines | 3:40pm | 4:51pm | 29 | 68% |
| WN 3081Southwest Airlines | 4:35pm | 5:45pm | 4 | n/a |
| WN 1037Southwest Airlines | 4:45pm | 5:55pm | 8 | n/a |
| WN 4315Southwest Airlines | 5:45pm | 6:50pm | 12 | 55% |
| WN 5120Southwest Airlines | 8:30pm | 9:35pm | 4 | n/a |
| F9 4206Frontier Airlines | 10:17pm | 11:26pm | 6 | 71% |
Is ONT to LAS on time?
From September 2025 to August 2026, 76% of 2,469 flights arrived within 15 minutes of schedule and 0.9% were cancelled. Flights leaving around 5am were the most punctual (97%), those around 4pm the least (63%). Most delay time was caused by late-arriving aircraft (55%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Southwest Airlines | 1,744 | 77% | 13 min | 0.8% |
| Frontier Airlines | 725 | 75% | 21 min | 1.2% |
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 | 264 | 97% | |
| 6am to 7am | 166 | 93% | |
| 8am to 9am | 195 | 92% | |
| 9am to 10am | 70 | 90% | |
| 10am to 11am | 120 | 82% | |
| 11am to 12pm | 150 | 74% | |
| 12pm to 1pm | 110 | 64% | |
| 1pm to 2pm | 152 | 64% | |
| 2pm to 3pm | 119 | 67% | |
| 3pm to 4pm | 280 | 74% | |
| 4pm to 5pm | 143 | 63% | |
| 5pm to 6pm | 101 | 57% | |
| 6pm to 7pm | 89 | 68% | |
| 7pm to 8pm | 72 | 61% | |
| 8pm to 9pm | 110 | 75% | |
| 9pm to 10pm | 218 | 66% | |
| 10pm to 11pm | 67 | 72% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 204 | 24,132 | |
| September 2025 | 207 | 24,189 | |
| October 2025 | 227 | 24,688 | |
| November 2025 | 207 | 23,059 | |
| December 2025 | 205 | 23,118 | |
| January 2026 | 215 | 20,649 | |
| February 2026 | 191 | 20,424 | |
| March 2026 | 197 | 20,136 | |
| April 2026 | 205 | 21,868 | |
| May 2026 | 206 | 23,923 | |
| June 2026 | 205 | 24,248 | |
| July 2026 | 211 | 22,629 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.