BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
CLT→ONT

Charlotte, NC (CLT) to Ontario, CA (ONT) flight delay odds

74.6% of 327 official scheduled CLT-to-ONT flights arrived on time; 15.3% arrived at least 30 minutes late and 0.9% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALGenerally reliable
74.6%arrived on time
15.3%30+ min late
0.9%cancelled
327scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late9.2%all scheduled flights
120+ minutes late2.8%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+7.0 mincompleted flights

Which departure time was most reliable for CLT to ONT?

Only Evening met the CLT-to-ONT departure window threshold: 74.5% of 325 scheduled flights arrived on time during July 2025–June 2026.

Departure windowFlightsOn time30+ minCancelled
Evening32574.5%15.4%0.9%

Which weekday was most reliable for CLT to ONT?

Among qualifying CLT-to-ONT weekday results, Saturday had the highest on-time rate: 83.0% of 47 flights. Sunday was lowest at 61.7% across 47 flights.

DayFlightsOn time30+ minCancelled
Monday4778.7%8.5%0.0%
Tuesday4774.5%21.3%0.0%
Wednesday4678.3%10.9%0.0%
Thursday4671.7%17.4%0.0%
Friday4774.5%14.9%2.1%
Saturday4783.0%12.8%0.0%
Sunday4761.7%21.3%4.3%

Which airline was most reliable for CLT to ONT?

Only American Airlines met the CLT-to-ONT airline threshold: 74.6% of 327 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
American Airlines32774.6%15.3%0.9%

Which month was most reliable for CLT to ONT?

Among qualifying CLT-to-ONT month results, October 2025 had the highest on-time rate: 90.3% of 31 flights. July 2025 was lowest at 38.7% across 31 flights.

MonthFlightsOn time30+ minCancelled
July 20253138.7%41.9%0.0%
August 20253177.4%12.9%3.2%
September 20253086.7%6.7%0.0%
October 20253190.3%6.5%0.0%
November 20252979.3%6.9%3.4%
December 20253174.2%16.1%0.0%
February 20261776.5%11.8%0.0%
March 20263190.3%3.2%3.2%
April 20263076.7%20.0%0.0%
May 20263171.0%12.9%0.0%
June 20263056.7%30.0%0.0%

What drove CLT to ONT delay minutes?

Late aircraft was the largest recorded CLT-to-ONT delay category, accounting for 52.3% of 4,953 BTS-attributed delay minutes during July 2025–June 2026.

Airline30.2%
Late aircraft52.3%
National airspace11.3%
Weather5.7%
Security0.6%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.