Route · JFK → ONT · 2020–2025 BTS data
New York to Ontario
The JFK–ONT corridor (New York, NY → Ontario, CA) runs behind the national average, served by 1 carrier across roughly 2,429 miles.
Data updated 2026-06-13
- 64%
- On-time
- -15 pts
- vs US avg
- 74 min
- Delay when late
- 1,041
- Flights
Cancelled
1.9%
Best Month
N/A
Worst Month
N/A
Distance
2,429 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Sep 2025 | 30 | 10 | 0 | 0 | B6 |
| Aug 2025 | 31 | 10 | 0 | 0 | B6 |
| Jul 2025 | 31 | 18 | 2 | 0 | B6 |
| Jun 2025 | 30 | 11 | 0 | 0 | B6 |
| May 2025 | 31 | 11 | 0 | 0 | B6 |
| Sep 2024 | 30 | 3 | 0 | 0 | B6 |
| Aug 2024 | 31 | 11 | 2 | 0 | B6 |
| Jul 2024 | 31 | 11 | 0 | 0 | B6 |
| Jun 2024 | 30 | 6 | 1 | 0 | B6 |
| May 2024 | 31 | 10 | 0 | 0 | B6 |
| Apr 2024 | 30 | 9 | 0 | 0 | B6 |
| Mar 2024 | 31 | 9 | 1 | 0 | B6 |
| Jan 2024 | 31 | 9 | 0 | 0 | B6 |
| Dec 2023 | 31 | 7 | 0 | 0 | B6 |
| Nov 2023 | 30 | 8 | 0 | 0 | B6 |
| Oct 2023 | 31 | 8 | 0 | 0 | B6 |
| Sep 2023 | 30 | 13 | 2 | 0 | B6 |
| Aug 2023 | 31 | 17 | 2 | 1 | B6 |
| Jul 2023 | 31 | 16 | 2 | 0 | B6 |
| Jun 2023 | 30 | 15 | 0 | 1 | B6 |
| May 2023 | 31 | 11 | 0 | 0 | B6 |
| Apr 2023 | 30 | 16 | 2 | 0 | B6 |
| Mar 2023 | 31 | 24 | 0 | 0 | B6 |
| Jan 2023 | 31 | 15 | 0 | 0 | B6 |
Cancellation Rate
1.9%
14 of 735 flights
Diversion Rate
0.3%
2 of 735 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
JFK - New York
Full on-time, delay-cause, and seasonal performance for New York, NY.
Origin airport →ONT - Ontario
Full on-time, delay-cause, and seasonal performance for Ontario, CA.
Destination airport →Compare the two airports
See JFK 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 JFK–ONT.
Routes with a similar on-time rate
What the Data Says About JFK to ONT
New York to Ontario (JFK to ONT) sits among the less reliable pairings in the BTS dataset, on-time only 64% of the time across 1,041 flights, with a 74.3-minute average delay when service runs late. Carriers on this 2,429-mile route (1 total) show a 1.9% cancellation rate and 0.3% diversion rate over the last 24 months (14 of 735 flights cancelled).
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 JFK 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.