Route · DAL → ONT · 2020–2025 BTS data
Dallas to Ontario
The DAL–ONT corridor (Dallas, TX → Ontario, CA) runs behind the national average, served by 1 carrier across roughly 1,200 miles.
Data updated 2026-06-13
- 74.8%
- On-time
- -4.2 pts
- vs US avg
- 60 min
- Delay when late
- 1,434
- Flights
Cancelled
0.6%
Best Month
N/A
Worst Month
N/A
Distance
1,200 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 42 | 10 | 0 | 0 | WN |
| Nov 2025 | 35 | 9 | 1 | 0 | WN |
| Oct 2025 | 31 | 14 | 0 | 0 | WN |
| Sep 2025 | 34 | 9 | 0 | 0 | WN |
| Aug 2025 | 35 | 10 | 0 | 0 | WN |
| Jul 2025 | 35 | 16 | 1 | 0 | WN |
| Jun 2025 | 35 | 15 | 0 | 0 | WN |
| May 2025 | 34 | 16 | 0 | 0 | WN |
| Apr 2025 | 33 | 6 | 0 | 0 | WN |
| Mar 2025 | 31 | 9 | 0 | 0 | WN |
| Jan 2025 | 31 | 3 | 0 | 2 | WN |
| Dec 2024 | 31 | 8 | 0 | 0 | WN |
| Nov 2024 | 30 | 3 | 0 | 0 | WN |
| Oct 2024 | 31 | 7 | 0 | 0 | WN |
| Sep 2024 | 34 | 11 | 0 | 0 | WN |
| Aug 2024 | 35 | 5 | 0 | 0 | WN |
| Jul 2024 | 35 | 8 | 1 | 1 | WN |
| Jun 2024 | 34 | 14 | 0 | 0 | WN |
| May 2024 | 31 | 13 | 1 | 0 | WN |
| Apr 2024 | 30 | 7 | 0 | 0 | WN |
| Mar 2024 | 31 | 10 | 0 | 0 | WN |
| Jan 2024 | 31 | 10 | 1 | 0 | WN |
| Dec 2023 | 31 | 4 | 0 | 0 | WN |
| Nov 2023 | 30 | 5 | 0 | 0 | WN |
Cancellation Rate
0.6%
5 of 790 flights
Diversion Rate
0.4%
3 of 790 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
DAL - Dallas
Full on-time, delay-cause, and seasonal performance for Dallas, TX.
Origin airport →ONT - Ontario
Full on-time, delay-cause, and seasonal performance for Ontario, CA.
Destination airport →Compare the two airports
See DAL and ONT side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to DAL–ONT.
Routes with a similar on-time rate
What the Data Says About DAL to ONT
On-time performance on the DAL to ONT pairing (Dallas to Ontario) trails a chunk of the network: 74.8% of 1,434 tracked flights arrived on schedule, with a 59.8-minute average delay on the ones that ran late. The route spans about 1,200 miles across 1 carrier. Cancellations over the trailing 24 months hit 0.6% (5 of 790 flights), with 0.4% diverted.
Monthly performance data for this route did not show a clear best/worst split in the sample window; review the monthly table above for period-by-period detail.
Frequently Asked Questions
How often are flights delayed from DAL to ONT? ▼
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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.