Route Reliability
New York → Ontario
JFK–ONT · 2,429 miles · John F. Kennedy International Airport to Ontario International Airport
- 61%
- Arrive within 15 minutes
- 23 min
- Average arrival delay
- 1.2%
- Cancelled
- 165
- Flights in the data
Data through May 2026.
JetBlue Airways is the only airline in this data on this route, arriving on time 61% of the time across 165 flights. No comparison to make.
What the data says
The 3–6 PM departure wins.
JFK–ONT flights departing between 3–6 PM arrived on time 91% of the time, versus 59% between 6–9 PM.
Sunday scaries are real for this one.
JFK–ONT flights arrived on time 71% of the time on Fridays and just 50% on Sundays. That gap is worth planning around.
Trending in the right direction.
JFK–ONT flights arrived on time 67% of the time over the last three months in the data, compared with 57% in the three months before that.
The breakdown
- Mon64%(22 flights)
- Tue61%(23 flights)
- Wed64%(22 flights)
- Thu63%(24 flights)
- Fri71%(24 flights)
- Sat58%(24 flights)
- Sun50%(24 flights)
- 3–6 PM91%(11 flights)
- 6–9 PM59%(152 flights)
Jun 63% → May 83% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 63% | 30 |
| July 2025 | 41% | 29 |
| August 2025 | 68% | 31 |
| September 2025 | 67% | 30 |
| October 2025 | 52% | 25 |
| May 2026 | 83% | 18 |
Same trip, other airports
Keep nerding
Based on 165 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.