Las Vegas (LAS) to Ontario (ONT) flights
Southwest Airlines, Frontier Airlines fly nonstop from Harry Reid International Airport to Ontario International Airport, with about 48 flights a week in July 2026. The 197-mile flight takes about 58m gate to gate.
- Distance
- 197 mi · 317 km
- Flight time
- 58m
- Airlines
- 2
- Seats filled
- 66%
Airlines flying LAS to ONT
| 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 | 196,214 | 56m |
| Frontier Airlines | 14 | Airbus A320neo, Airbus A321, Airbus A320-100/200 | 87,135 | 1h 2m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
LAS to ONT flight schedule
15 flight numbers flew this route in August 2026, 2 of them almost daily. The first usually leaves at 7:00am and the last at 8:45pm. 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) |
|---|---|---|---|---|
| F9 1283Frontier Airlines | 7:00am | 8:03am | 27 | 86% |
| WN 4725Southwest Airlines | 7:50am | 8:55am | 8 | n/a |
| WN 159Southwest Airlines | 8:20am | 9:30am | 4 | n/a |
| WN 278Southwest Airlines | 8:50am | 9:55am | 12 | 100% |
| WN 261Southwest Airlines | 10:15am | 11:25am | 12 | 92% |
| WN 955Southwest Airlines | 11:35am | 12:40pm | 12 | 100% |
| WN 766Southwest Airlines | 2:10pm | 3:15pm | 4 | n/a |
| WN 3609Southwest Airlines | 2:15pm | 3:15pm | 16 | 44% |
| F9 1357Frontier Airlines | 2:45pm | 3:54pm | 31 | 81% |
| WN 4923Southwest Airlines | 3:00pm | 4:05pm | 8 | n/a |
| WN 36Southwest Airlines | 6:20pm | 7:25pm | 12 | 50% |
| WN 2956Southwest Airlines | 6:30pm | 7:35pm | 4 | n/a |
| WN 2239Southwest Airlines | 7:50pm | 8:55pm | 16 | 56% |
| F9 2231Frontier Airlines | 8:21pm | 9:27pm | 4 | 77% |
| WN 4733Southwest Airlines | 8:45pm | 9:45pm | 16 | 69% |
Is LAS to ONT on time?
From September 2025 to August 2026, 75% of 2,473 flights arrived within 15 minutes of schedule and 0.7% were cancelled. Flights leaving around 8am were the most punctual (95%), those around 10pm the least (44%). Most delay time was caused by late-arriving aircraft (57%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Southwest Airlines | 1,749 | 73% | 15 min | 0.6% |
| Frontier Airlines | 724 | 81% | 15 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 |
|---|---|---|---|
| 6am to 7am | 58 | 93% | |
| 7am to 8am | 245 | 90% | |
| 8am to 9am | 134 | 95% | |
| 9am to 10am | 169 | 89% | |
| 10am to 11am | 128 | 84% | |
| 11am to 12pm | 151 | 81% | |
| 12pm to 1pm | 157 | 83% | |
| 1pm to 2pm | 100 | 76% | |
| 2pm to 3pm | 243 | 70% | |
| 3pm to 4pm | 83 | 68% | |
| 4pm to 5pm | 109 | 62% | |
| 5pm to 6pm | 90 | 71% | |
| 6pm to 7pm | 138 | 68% | |
| 7pm to 8pm | 251 | 72% | |
| 8pm to 9pm | 142 | 69% | |
| 9pm to 10pm | 115 | 66% | |
| 10pm to 11pm | 160 | 44% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 202 | 24,361 | |
| September 2025 | 202 | 24,706 | |
| October 2025 | 229 | 26,443 | |
| November 2025 | 209 | 25,232 | |
| December 2025 | 207 | 24,854 | |
| January 2026 | 210 | 21,383 | |
| February 2026 | 194 | 21,339 | |
| March 2026 | 197 | 19,645 | |
| April 2026 | 202 | 20,339 | |
| May 2026 | 199 | 25,221 | |
| June 2026 | 205 | 25,206 | |
| July 2026 | 214 | 24,811 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.