Historical on-time performance
Sioux City to Chicago
436 miData through May 2026Source: US DOT · BTS
Flights on SUX–ORD arrive on time 72% of the time over the last 12 months.
On-time rate72%arrived within 15 min
p90 delay70 min1 in 10 flights is worse (tail risk)
Cancelled2.1%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-time72%Medianon timep9070 minCancel2.1%Flights337
Why flights run late
Delay causes
- Airline53%
- Weather9%
- Air traffic (NAS)24%
- Late aircraft14%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather100%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 7 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 SUX → ORD
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 74% to 76% on time.
- Middays76% on time · p90 70 min · 660 flights
- Mornings74% on time · p90 100 min · 431 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 69% to 81% on time.
- Tuesdays81% on time · p90 35 min · 156 flights · limited
- Wednesdays79% on time · p90 45 min · 156 flights · limited
- Thursdays78% on time · p90 70 min · 156 flights · limited
- Sundays76% on time · p90 145 min · 156 flights · limited
- Fridays71% on time · p90 45 min · 157 flights · limited
- Saturdays71% on time · p90 75 min · 157 flights · limited
- Mondays69% on time · p90 115 min · 153 flights · limited
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