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

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

84.1% of 327 official scheduled ONT-to-CLT flights arrived on time; 7.6% 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 SIGNALLower disruption
84.1%arrived on time
7.6%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 late3.7%all scheduled flights
120+ minutes late1.5%all scheduled flights
Diverted0.3%did not reach as scheduled
Average arrival+0.8 mincompleted flights

Which departure time was most reliable for ONT to CLT?

Only Night met the ONT-to-CLT departure window threshold: 84.1% of 327 scheduled flights arrived on time during July 2025–June 2026.

Departure windowFlightsOn time30+ minCancelled
Night32784.1%7.6%0.9%

Which weekday was most reliable for ONT to CLT?

Among qualifying ONT-to-CLT weekday results, Monday had the highest on-time rate: 91.5% of 47 flights. Saturday was lowest at 72.3% across 47 flights.

DayFlightsOn time30+ minCancelled
Monday4791.5%2.1%0.0%
Tuesday4780.9%14.9%0.0%
Wednesday4682.6%4.3%0.0%
Thursday4689.1%2.2%0.0%
Friday4787.2%8.5%2.1%
Saturday4772.3%10.6%0.0%
Sunday4785.1%10.6%4.3%

Which airline was most reliable for ONT to CLT?

Only American Airlines met the ONT-to-CLT airline threshold: 84.1% of 327 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
American Airlines32784.1%7.6%0.9%

Which month was most reliable for ONT to CLT?

Among qualifying ONT-to-CLT month results, September 2025 had the highest on-time rate: 93.3% of 30 flights. July 2025 was lowest at 71.0% across 31 flights.

MonthFlightsOn time30+ minCancelled
July 20253171.0%22.6%0.0%
August 20253180.6%6.5%3.2%
September 20253093.3%3.3%0.0%
October 20253183.9%6.5%0.0%
November 20252975.9%10.3%3.4%
December 20253187.1%3.2%0.0%
February 20261788.2%5.9%0.0%
March 20263183.9%6.5%3.2%
April 20263090.0%0.0%0.0%
May 20263190.3%6.5%0.0%
June 20263080.0%13.3%0.0%

What drove ONT to CLT delay minutes?

Airline was the largest recorded ONT-to-CLT delay category, accounting for 59.2% of 3,336 BTS-attributed delay minutes during July 2025–June 2026.

Airline59.2%
Late aircraft30.9%
National airspace9.1%
Weather0.0%
Security0.7%
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.