BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
SUX→DEN

Sioux City, IA (SUX) to Denver, CO (DEN) flight delay odds

66.2% of 500 official scheduled SUX-to-DEN flights arrived on time; 23.2% arrived at least 30 minutes late and 2.6% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALVariable
66.2%arrived on time
23.2%30+ min late
2.6%cancelled
500scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late15.0%all scheduled flights
120+ minutes late8.0%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+27.3 mincompleted flights

Which departure time was most reliable for SUX to DEN?

Among qualifying SUX-to-DEN departure window results, Late morning had the highest on-time rate: 88.1% of 42 flights. Evening was lowest at 60.8% across 324 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning13472.4%20.1%2.2%
Late morning4288.1%9.5%0.0%
Evening32460.8%26.2%3.1%

Which weekday was most reliable for SUX to DEN?

Among qualifying SUX-to-DEN weekday results, Wednesday had the highest on-time rate: 73.0% of 63 flights. Monday was lowest at 62.3% across 77 flights.

DayFlightsOn time30+ minCancelled
Monday7762.3%26.0%1.3%
Tuesday6671.2%22.7%0.0%
Wednesday6373.0%17.5%1.6%
Thursday7663.2%26.3%1.3%
Friday7763.6%28.6%5.2%
Saturday6464.1%18.8%6.2%
Sunday7767.5%20.8%2.6%

Which airline was most reliable for SUX to DEN?

Only SkyWest Airlines met the SUX-to-DEN airline threshold: 66.2% of 500 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
SkyWest Airlines50066.2%23.2%2.6%

Which month was most reliable for SUX to DEN?

Among qualifying SUX-to-DEN month results, November 2025 had the highest on-time rate: 79.3% of 29 flights. August 2025 was lowest at 41.9% across 31 flights.

MonthFlightsOn time30+ minCancelled
July 20253141.9%48.4%6.5%
August 20253141.9%45.2%6.5%
September 20253070.0%23.3%0.0%
October 20253171.0%9.7%0.0%
November 20252979.3%6.9%0.0%
December 20253154.8%29.0%3.2%
January 20265771.9%19.3%3.5%
February 20265578.2%14.5%0.0%
March 20266269.4%17.7%4.8%
April 20264753.2%38.3%2.1%
May 20264969.4%20.4%4.1%
June 20264776.6%17.0%0.0%

What drove SUX to DEN delay minutes?

Airline was the largest recorded SUX-to-DEN delay category, accounting for 36.2% of 16,302 BTS-attributed delay minutes during July 2025–June 2026.

Airline36.2%
Late aircraft31.2%
National airspace19.6%
Weather12.9%
Security0.0%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.