Route · DEN → SUX · 2020–2025 BTS data
Denver to Sioux City
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), DEN to SUX (Denver to Sioux City) ranks #4260 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 81.8%
- On-time
- +2.8 pts
- vs US avg
- 70 min
- Delay when late
- 1,349
- Flights
- #4260 of 4927
- Corpus placement
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 |
DEN–SUX seasonal on-time pattern
Best: January (90.3%) · weakest: July (66.1%)
Strongest calendar month
January
90.3% on-time · ~31 flights/mo
Busiest calendar month
January
~31 flights/mo avg
Weakest calendar month
July
66.1% on-time · ~31 flights/mo
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.
DEN on-time profileSUX - Sioux City
Full on-time, delay-cause, and seasonal performance for Sioux City, IA.
SUX on-time profileCompare the two airports
See DEN and SUX side by side on delays, cancellations, and reliability.
Compare DEN vs SUXOrigin-hub reliability standing
Mid-pack among DEN departures
From DEN, this corridor sits with 133 other 75–85% on-time routes out of 168 tracked departures, not the hub's reliability leaders (8 at ≥85%) and not the softest ( 27 below 75%). Destination: Sioux City · fleet on-time rank #2429 of 4927.
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.
On the multi-year calendar, DEN–SUX peaks in January at 90.3% on-time ; the softest month is July at 66.1%, a 24.2-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does DEN to SUX rank among US routes by traffic? ▼
How often are flights delayed from DEN to SUX? ▼
What is the cancellation rate for DEN to SUX? ▼
How far is the flight from DEN to SUX? ▼
Airports on this route
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.
Using DEN–SUX data
DEN–SUX is mid-pack at 81.8% on-time; month and carrier mix move more than the corridor headline.
- Compare DEN and SUX airport profiles: delay causes and top routes differ even on the same corridor. DEN airport
- If your dates flex, January (90.3% on-time) beats July (66.1%) on this corridor. Seasonal chart
- 4 other routes post a similar 81.8% on-time rate; compare before you commit to this pairing. Similar routes
On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.
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.