Flights on IAD–ORD arrive on time 75% of the time over the last 12 months.
On-time rate75%arrived within 15 min
Median delayon timetypical arrival
p90 delay40 min1 in 10 flights is worsetail risk
Cancelled0.6%of scheduled flights
based on 1,991 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- United AirlinesbestOn-time75%Medianon timep9040 minCancel0.6%Flights1,991
Why flights run late
Delay causes
- Airline23%
- Weather12%
- Air traffic (NAS)43%
- Late aircraft22%
- Security0%
Most delay minutes here are attributed to Air traffic (NAS).
Over time
On-time trend
By season
On-time rate by month
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