United AirlinesUA67% on time
Flights UA5021 16:00 daily
live
Direct flights from Chicago (ORD) to Sioux City (SUX): 7 nonstop departures observed each week across 1 airline. 67% of the last 6 operated flights arrived within 15 minutes of schedule. The median arrival is on schedule. No cancellations were recorded across the 6 tracked flights. The nonstop covers 700 km, an estimated 1 hour 24 minutes in the air. Measured by Pro Flight Search from live flight boards at Chicago and Sioux City. Updated 16 September 2026 at 14:38 UTC.
ORD
Chicago
smooth · +0
SUX
Sioux City
tracking
700 km · ~1h 24m est.
Runs mixed · 1 airline · 7x weekly · nonstop
67% on time
of the last 6 operated ORD → SUX flights arrived within 15 minutes
Median arrival delay is −1 min. 0 of 6 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival−1 minacross the last 6 operated legs
Flight time~1h 24mestimated from route distance
Weekly departures7x1 direct airline on the leg
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
United Airlines
Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.
Who flies it
observed on the boards · 7 daysHistory
operated legs · board outcomesActual board outcomes rather than schedules, paired departure and arrival per flight and day.
Full board history, day by day →
Airports right now
live boardsnext sweep in 120s
How the Chicago to Sioux City route actually runs
Pro Flight Search records official board updates for nonstop ORD to SUX flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.
Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Cite this data
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Suggested citation
Pro Flight Search — Chicago (ORD) to Sioux City (SUX) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/ORD-SUX
ORD to SUX questions
Is ORD–SUX running on time right now?
Smooth skies ahead. Both endpoints currently score the same, route health score 100/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from ORD to SUX?
Great-circle distance is 700 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 79–90 min gate-to-gate on this route.
How often does ORD–SUX fly?
United Airlines runs the route with about 7 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.
What does the route health score measure?
A blend of departure-side delay at ORD and arrival-side delay at SUX, computed from rolling delay windows (refreshed every 40 minutes) with a daily-rollup fallback. Current MVFR, IFR, or LIFR endpoint weather caps the score when flight rules can limit throughput. Higher is healthier: 100 means operations are clean at both ends.
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