Historical on-time performance
Chicago to Columbia
Flights on ORD–COU arrive on time 67% of the time over the last 12 months.
based on 1,800 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Envoy AirbestOn-time71%Medianon timep9055 minCancel2.4%Flights1,117
- SkyWest AirlinesOn-time60%Medianon timep9095 minCancel5.3%Flights683
Why flights run late
Delay causes
- Airline25%
- Weather8%
- Air traffic (NAS)19%
- Late aircraft48%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather71%
- Air traffic (NAS)29%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 63 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly ORD → COU
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 60% to 77% on time.
- Mornings77% on time · p90 45 min · 478 flights
- Middays73% on time · p90 60 min · 512 flights
- Afternoons72% on time · p90 45 min · 472 flights
- Evenings65% on time · p90 70 min · 961 flights
- Overnights60% on time · p90 80 min · 491 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 66% to 73% on time.
- Tuesdays73% on time · p90 70 min · 398 flights
- Saturdays72% on time · p90 50 min · 388 flights
- Thursdays68% on time · p90 65 min · 428 flights
- Mondays68% on time · p90 65 min · 430 flights
- Wednesdays67% on time · p90 65 min · 407 flights
- Sundays67% on time · p90 75 min · 433 flights
- Fridays66% on time · p90 65 min · 430 flights
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