Historical on-time performance
Chicago to Houston
925 miData through Dec 2025Source: US DOT · BTS
Flights on ORD–IAH arrive on time 74% of the time over the last 12 months.
On-time rate74%arrived within 15 min
Median delayon timetypical arrival
p90 delay55 min1 in 10 flights is worsetail risk
Cancelled1.1%of scheduled flights
based on 5,347 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Republic AirwaysOn-time70%Medianon timep9055 minCancel3.4%Flights264
- United AirlinesOn-time78%Medianon timep9040 minCancel0.7%Flights3,819
- American AirlinesOn-time66%Medianon timep9085 minCancel1.6%Flights802
- Spirit AirlinesOn-time61%Medianon timep9090 minCancel2.6%Flights416
- Envoy AirbestOn-time87%Medianon timep9025 minCancel0.0%Flights46
Why flights run late
Delay causes
- Airline28%
- Weather5%
- Air traffic (NAS)28%
- Late aircraft39%
- 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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