Ontario (ONT) to Charlotte (CLT): On-Time Performance
Data through July 2026
Ontario (ONT) to Charlotte (CLT) is a thinner route than most in this dataset — 327 departures over the past year, roughly 6 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 85% arrived on time, comfortably above the national average of 78%.
- On-time
- 85%
- arrived <15 min late
- Avg delay
- 16 min
- completed flights
- Cancelled
- 0.7%
- Flights/day
- 0.90
- last 12 months
- Duration
- 4h 31m
- scheduled
- Distance
- 2,078 mi
Monthly on-time trend
Best time to fly from ONT to CLT
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Mondaybest | 90% | 5 min |
| Tuesday | 84% | 27 min |
| Wednesday | 84% | 9 min |
| Thursday | 87% | 19 min |
| Friday | 86% | 18 min |
| Saturday | 77% | 21 min |
| Sunday | 85% | 13 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft25%
- Airline operations61%
- National airspace system8%
- Weather6%
Frequently asked questions
- How often are flights from ONT to CLT delayed?
- 16% of ONT–CLT flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 16 minutes.
- How long is the flight from ONT to CLT?
- The scheduled ONT–CLT flight time averages 4h 31m over 2,078 miles. Actual arrival times vary — flights on this route land 15+ minutes late 16% of the time.
- How often are ONT to CLT flights cancelled?
- 0.7% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from ONT to CLT?
- June 2025 was the roughest month in this dataset, with only 63% of arrivals on time. The best was March 2025 at 93%. If your dates are flexible, that 30-point gap is worth planning around.
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Based on 681 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.