Charlotte (CLT) to Ontario (ONT): On-Time Performance
Data through July 2026
Charlotte (CLT) to Ontario (ONT) 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, 72% arrived on time, noticeably below the national average of 78%.
- On-time
- 72%
- arrived <15 min late
- Avg delay
- 19 min
- completed flights
- Cancelled
- 0.7%
- Flights/day
- 0.90
- last 12 months
- Duration
- 5h 5m
- scheduled
- Distance
- 2,078 mi
Monthly on-time trend
Best time to fly from CLT to ONT
Aim for departures around 5 p.m. (91% on-time); avoid 9 p.m. departures (33%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 67% | 26 min |
| Tuesdaybest | 77% | 18 min |
| Wednesday | 75% | 12 min |
| Thursday | 74% | 20 min |
| Friday | 71% | 15 min |
| Saturday | 74% | 19 min |
| Sunday | 68% | 26 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft46%
- Airline operations27%
- National airspace system11%
- Weather15%
Frequently asked questions
- How often are flights from CLT to ONT delayed?
- 28% of CLT–ONT 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 19 minutes.
- What is the best time of day to fly from CLT to ONT?
- Departures around 5 p.m. have the best record (91% on-time), while departures around 9 p.m. have the worst (33%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from CLT to ONT?
- The scheduled CLT–ONT flight time averages 5h 5m over 2,078 miles. Actual arrival times vary — flights on this route land 15+ minutes late 28% of the time.
- How often are CLT to ONT 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 CLT to ONT?
- July 2024 was the roughest month in this dataset, with only 32% of arrivals on time. The best was March 2026 at 93%. If your dates are flexible, that 61-point gap is worth planning around.
Explore related pages
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Other ways to fly to Ontario (ONT)
Related guides
Based on 681 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.