Route · DEN → SUX · 2020–2025 BTS data
Denver to Sioux City
The DEN–SUX corridor (Denver, CO → Sioux City, IA) runs ahead of the national average, served by 1 carrier across roughly 466 miles.
Data updated 2026-06-13
- 81.8%
- On-time
- +2.8 pts
- vs US avg
- 70 min
- Delay when late
- 1,349
- Flights
Cancelled
1.4%
Best Month
N/A
Worst Month
N/A
Distance
466 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 31 | 11 | 1 | 1 | OO |
| Oct 2025 | 31 | 3 | 0 | 0 | OO |
| Sep 2025 | 30 | 2 | 0 | 0 | OO |
| Aug 2025 | 31 | 10 | 1 | 0 | OO |
| Jul 2025 | 31 | 12 | 1 | 0 | OO |
| Jun 2025 | 30 | 17 | 0 | 0 | OO |
| May 2025 | 31 | 10 | 1 | 0 | OO |
| Apr 2025 | 30 | 5 | 0 | 0 | OO |
| Mar 2025 | 31 | 2 | 1 | 0 | OO |
| Jan 2025 | 31 | 9 | 0 | 0 | OO |
| Dec 2024 | 31 | 2 | 0 | 0 | OO |
| Oct 2024 | 31 | 8 | 0 | 0 | OO |
| Sep 2024 | 30 | 8 | 0 | 0 | OO |
| Aug 2024 | 31 | 8 | 0 | 0 | OO |
| Jul 2024 | 31 | 7 | 0 | 1 | OO |
| Jun 2024 | 30 | 5 | 0 | 0 | OO |
| May 2024 | 31 | 6 | 0 | 0 | OO |
| Apr 2024 | 30 | 6 | 0 | 0 | OO |
| Mar 2024 | 31 | 6 | 2 | 0 | OO |
| Jan 2024 | 31 | 0 | 2 | 0 | OO |
| Dec 2023 | 31 | 0 | 0 | 0 | OO |
| Nov 2023 | 30 | 2 | 0 | 0 | OO |
| Oct 2023 | 31 | 2 | 1 | 1 | OO |
| Sep 2023 | 30 | 3 | 0 | 0 | OO |
Cancellation Rate
1.4%
10 of 736 flights
Diversion Rate
0.4%
3 of 736 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
DEN - Denver
Full on-time, delay-cause, and seasonal performance for Denver, CO.
Origin airport →SUX - Sioux City
Full on-time, delay-cause, and seasonal performance for Sioux City, IA.
Destination airport →Compare the two airports
See DEN and SUX side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to DEN–SUX.
Routes with a similar on-time rate
What the Data Says About DEN to SUX
1,349 tracked flights put the DEN to SUX pairing (Denver to Sioux City) at a 81.8% on-time rate, squarely in line with the wider network. Delays that do occur run 69.9 minutes on average. Across the 466-mile route and its 1 carrier, the trailing 24 months show 1.4% cancelled and 0.4% diverted (736 flights sampled).
Monthly performance data for this route did not show a clear best/worst split in the sample window; review the monthly table above for period-by-period detail.
Frequently Asked Questions
How often are flights delayed from DEN to SUX? ▼
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Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.