Historical on-time performance
Chicago to Wassau
213 miData through Dec 2025Source: US DOT · BTS
Flights on ORD–CWA arrive on time 72% of the time over the last 12 months.
On-time rate72%arrived within 15 min
p90 delay50 min1 in 10 flights is worse (tail risk)
Cancelled2.5%of scheduled flights
based on 724 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Envoy AirOn-time72%Medianon timep9050 minCancel2.5%Flights724
Why flights run late
Delay causes
- Airline19%
- Weather14%
- Air traffic (NAS)20%
- Late aircraft48%
- Security0%
Most delay minutes here are attributed to Late aircraft.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly ORD → CWA
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 69% to 84% on time.
- Middays84% on time · p90 25 min · 147 flights · limited
- Mornings80% on time · p90 35 min · 254 flights
- Evenings76% on time · p90 40 min · 147 flights · limited
- Overnights69% on time · p90 75 min · 258 flights
- Afternoons69% on time · p90 55 min · 198 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 69% to 79% on time.
- Thursdays79% on time · p90 35 min · 144 flights · limited
- Tuesdays79% on time · p90 45 min · 143 flights · limited
- Sundays77% on time · p90 70 min · 149 flights · limited
- Mondays75% on time · p90 45 min · 148 flights · limited
- Fridays74% on time · p90 40 min · 144 flights · limited
- Wednesdays71% on time · p90 40 min · 139 flights · limited
- Saturdays69% on time · p90 55 min · 137 flights · limited
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