Historical on-time performance
Bismarck to Chicago
716 miData through May 2026Source: US DOT · BTS
Flights on BIS–ORD arrive on time 74% of the time over the last 12 months.
On-time rate74%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled0.0%of scheduled flights
based on 154 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Envoy AirOn-time74%Medianon timep9045 minCancel0.0%Flights154
Why flights run late
Delay causes
- Airline26%
- Weather2%
- Air traffic (NAS)18%
- Late aircraft52%
- Security2%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline23%
- Weather40%
- Air traffic (NAS)36%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 47 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
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