Route · ONT → LAS · 2020–2025 BTS data
Ontario to Las Vegas
The ONT–LAS corridor (Ontario, CA → Las Vegas, NV) runs behind the national average, served by 3 carriers across roughly 197 miles.
Data updated 2026-06-13
- 78.3%
- On-time
- -0.7 pts
- vs US avg
- 68 min
- Delay when late
- 12,615
- Flights
Cancelled
0.9%
Best Month
Dec 2024 88%
Worst Month
Mar 2024 66%
Distance
197 mi
Carriers
3
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 206 | 32 | 2 | 0 | WN,F9 |
| Nov 2025 | 216 | 49 | 9 | 0 | F9,WN |
| Oct 2025 | 228 | 47 | 1 | 0 | WN,F9 |
| Sep 2025 | 201 | 47 | 0 | 0 | WN,F9 |
| Aug 2025 | 203 | 39 | 2 | 0 | WN,F9 |
| Jul 2025 | 216 | 54 | 2 | 0 | WN,F9 |
| Jun 2025 | 211 | 57 | 2 | 1 | WN,F9 |
| May 2025 | 223 | 52 | 1 | 0 | WN,F9 |
| Apr 2025 | 223 | 50 | 1 | 0 | F9,WN |
| Mar 2025 | 219 | 46 | 2 | 0 | WN,F9 |
| Feb 2025 | 191 | 24 | 2 | 0 | WN,F9 |
| Jan 2025 | 221 | 45 | 3 | 0 | WN,F9 |
| Dec 2024 | 227 | 27 | 0 | 0 | F9,WN |
| Nov 2024 | 243 | 34 | 0 | 0 | WN,F9 |
| Oct 2024 | 264 | 58 | 0 | 0 | WN,F9 |
| Sep 2024 | 240 | 58 | 3 | 0 | WN,F9 |
| Aug 2024 | 232 | 54 | 3 | 0 | F9,WN |
| Jul 2024 | 247 | 52 | 3 | 0 | F9,WN |
| Jun 2024 | 239 | 56 | 8 | 0 | F9,WN |
| May 2024 | 240 | 62 | 1 | 0 | F9,WN |
| Apr 2024 | 232 | 68 | 0 | 0 | F9,WN |
| Mar 2024 | 237 | 80 | 0 | 1 | F9,WN |
| Feb 2024 | 185 | 38 | 1 | 0 | F9,WN |
| Jan 2024 | 197 | 34 | 1 | 0 | F9,WN |
Cancellation Rate
0.9%
47 of 5,341 flights
Diversion Rate
0.0%
2 of 5,341 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
ONT - Ontario
Full on-time, delay-cause, and seasonal performance for Ontario, CA.
Origin airport →LAS - Las Vegas
Full on-time, delay-cause, and seasonal performance for Las Vegas, NV.
Destination airport →Compare the two airports
See ONT and LAS side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to ONT–LAS.
Routes with a similar on-time rate
What the Data Says About ONT to LAS
The Ontario to Las Vegas corridor (ONT to LAS) posts a 78.3% on-time rate on the lower edge of the average band, based on 12,615 tracked flights. Late flights run 68.0 minutes behind on average. 3 carriers cover the 197-mile route; over the last 24 months, 47 of 5,341 flights were cancelled (0.9%) and 0.0% diverted.
The monthly split is wide on this route: Dec 2024 posted the strongest performance at 88% on-time, while Mar 2024 came in at just 66% - a 22-point swing worth factoring into travel timing.
Frequently Asked Questions
How often are flights delayed from ONT to LAS? ▼
What is the cancellation rate for ONT to LAS? ▼
How far is the flight from ONT to LAS? ▼
When is the best time to fly from ONT to LAS? ▼
Flight Guides
Tips and data-driven advice for choosing reliable routes.
Explore PlainFlights
Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.