Sioux City (SUX) to Chicago (ORD): On-Time Performance
Data through July 2026
The calendar drives reliability on SUX–ORD. April 2025 flights landed on schedule 93% of the time, but December 2025 dropped to 41% — a gap of 52 points. Across the full period the route averages 75% on-time against a national 78%.
- On-time
- 75%
- arrived <15 min late
- Avg delay
- 27 min
- completed flights
- Cancelled
- 1.7%
- Flights/day
- 1.0
- last 12 months
- Duration
- 1h 47m
- scheduled
- Distance
- 436 mi
Monthly on-time trend
Best time to fly from SUX to ORD
Aim for departures around 8 a.m. (87% on-time); avoid 10 a.m. departures (71%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 64% | 42 min |
| Tuesdaybest | 83% | 14 min |
| Wednesday | 81% | 20 min |
| Thursday | 82% | 16 min |
| Friday | 71% | 28 min |
| Saturday | 71% | 32 min |
| Sunday | 75% | 36 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft20%
- Airline operations55%
- National airspace system14%
- Weather11%
Frequently asked questions
- How often are flights from SUX to ORD delayed?
- 25% of SUX–ORD flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 27 minutes.
- What is the best time of day to fly from SUX to ORD?
- Departures around 8 a.m. have the best record (87% on-time), while departures around 10 a.m. have the worst (71%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from SUX to ORD?
- The scheduled SUX–ORD flight time averages 1h 47m over 436 miles. Actual arrival times vary — flights on this route land 15+ minutes late 25% of the time.
- How often are SUX to ORD flights cancelled?
- 1.7% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, slightly above the national rate of 1.6%.
- What is the worst month to fly from SUX to ORD?
- December 2025 was the roughest month in this dataset, with only 41% of arrivals on time. The best was April 2025 at 93%. If your dates are flexible, that 52-point gap is worth planning around.
Explore related pages
More routes from SUX
Other ways to fly to Chicago (ORD)
Related guides
Based on 761 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.