Flights on ORD–ONT arrive on time 60% of the time over the last 12 months.
On-time rate60%arrived within 15 min
Median delayon timetypical arrival
p90 delay90 min1 in 10 flights is worsetail risk
Cancelled0.5%of scheduled flights
based on 183 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- United AirlinesbestOn-time60%Medianon timep9090 minCancel0.5%Flights183
Why flights run late
Delay causes
- Airline23%
- Weather5%
- Air traffic (NAS)13%
- Late aircraft60%
- Security0%
Most delay minutes here are attributed to Late aircraft.
Over time
On-time trend
By season
On-time rate by month
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