Historical on-time performance
Chicago to Sioux City
436 miData through Dec 2025Source: US DOT · BTS
Flights on ORD–SUX arrive on time 61% of the time over the last 12 months.
On-time rate61%arrived within 15 min
p90 delay110 min1 in 10 flights is worse (tail risk)
Cancelled3.9%of scheduled flights
based on 337 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- SkyWest AirlinesOn-time61%Medianon timep90110 minCancel3.9%Flights337
Why flights run late
Delay causes
- Airline39%
- Weather4%
- Air traffic (NAS)20%
- Late aircraft37%
- Security0%
Most delay minutes here are attributed to Airline.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly ORD → SUX
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Middays are the most reliable time of day to fly this route — 82% on time.
- Middays82% on time · p90 40 min · 436 flights
- Overnights62% on time · p90 100 min · 635 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 68% to 77% on time.
- Thursdays77% on time · p90 45 min · 155 flights · limited
- Saturdays72% on time · p90 55 min · 156 flights · limited
- Tuesdays71% on time · p90 80 min · 157 flights · limited
- Fridays69% on time · p90 75 min · 156 flights · limited
- Wednesdays68% on time · p90 55 min · 157 flights · limited
- Mondays68% on time · p90 65 min · 155 flights · limited
- Sundays68% on time · p90 115 min · 155 flights · limited
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