Historical on-time performance
Ontario to Charlotte
2,078 miData through Dec 2025Source: US DOT · BTS
Flights on ONT–CLT arrive on time 83% of the time over the last 12 months.
On-time rate83%arrived within 15 min
p90 delay25 min1 in 10 flights is worse (tail risk)
Cancelled0.7%of scheduled flights
based on 276 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- American AirlinesOn-time83%Medianon timep9025 minCancel0.7%Flights276
Why flights run late
Delay causes
- Airline68%
- Weather0%
- Air traffic (NAS)6%
- Late aircraft25%
- Security0%
Most delay minutes here are attributed to Airline.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly ONT → CLT
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best day of week
On-time rates are fairly even by day on this route — ranging from 80% to 87% on time.
- Tuesdays87% on time · p90 25 min · 143 flights · limited
- Mondays87% on time · p90 15 min · 142 flights · limited
- Wednesdays85% on time · p90 20 min · 144 flights · limited
- Fridays84% on time · p90 35 min · 139 flights · limited
- Thursdays84% on time · p90 30 min · 140 flights · limited
- Sundays83% on time · p90 25 min · 144 flights · limited
- Saturdays80% on time · p90 30 min · 144 flights · limited
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