Route
ONT → LAS
Ontario International Airport Harry Reid International Airport
How punctual is this route?
- On-time arrivals
- 76.2%
- Less than 15 minutes late
- Cancelled
- 0.9%
- Of scheduled flights
- Average delay when late
- 64 min
- Flights arriving 15+ minutes late
- Flights tracked
- 2,469
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 56%
- Air traffic control & airport 28%
- Airline (crew, maintenance, cleaning) 15%
- Extreme weather 1%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 76.6% | 201 |
| October 2025 | 79.3% | 228 |
| November 2025 | 76.3% | 216 |
| December 2025 | 84.3% | 206 |
| January 2026 | 85.3% | 213 |
| February 2026 | 88.5% | 192 |
| March 2026 | 79.2% | 197 |
| April 2026 | 71.8% | 202 |
| May 2026 | 64.3% | 199 |
| June 2026 | 68.6% | 206 |
| July 2026 | 69.9% | 213 |
| August 2026 | 70.5% | 196 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| Southwest Airlines | 1,744 | 76.6% | 0.8% | 55 min |
| Frontier Airlines | 725 | 75.4% | 1.2% | 87 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
F92232
20% late · 290 flights
-
F94758
32% late · 220 flights
-
F94206
29% late · 122 flights
-
F91358
14% late · 93 flights
-
WN3979
6% late · 64 flights
-
WN3150
3% late · 61 flights
-
WN4667
17% late · 58 flights
-
WN3075
67% late · 57 flights
-
WN322
11% late · 57 flights
-
WN4394
9% late · 53 flights
-
WN2213
69% late · 52 flights
-
WN4576
48% late · 50 flights
-
WN156
33% late · 45 flights
-
WN2338
4% late · 45 flights
-
WN533
20% late · 45 flights
-
WN2333
14% late · 44 flights
-
WN372
35% late · 43 flights
-
WN447
37% late · 41 flights
-
WN1695
0% late · 39 flights
-
WN1786
3% late · 36 flights
-
WN1142
36% late · 33 flights
-
WN4072
12% late · 33 flights
-
WN2244
35% late · 31 flights
-
WN235
30% late · 30 flights
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