Sioux City to Chicago

What the Data Says About SUX to ORD

The Sioux City to Chicago corridor (SUX → ORD) covers roughly 436 miles and is served by 3 carriers, based on Bureau of Transportation Statistics reporting. Across 2,092 flights in the dataset, this route posts a 80.5% on-time rate with an average delay of 107.3 minutes when flights run late. Over the most recent 24 months of BTS data, 735 flights were recorded on this pairing — 15 cancelled (2.0%) and 2 diverted (0.3%). Those baseline metrics tell you what to expect before you book.

Having 3 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 2,092 total flights analyzed, the 80.5% on-time figure is statistically meaningful rather than a small-sample fluke. The 107.3-minute average delay applies only to flights that actually ran late, so it is not the average wait across all departures — the majority of flights on this route depart on time under the BTS definition of a delay (15+ minutes past schedule).

Monthly performance varies, so review the monthly table above to see specific periods. For travelers evaluating the SUX to ORD route, the combination of a 80.5% on-time rate, 107.3-minute average delay, 2.0% recent cancellation rate, and 3 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.