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

Des Moines, IA (DSM) to Denver, CO (DEN) flight delay odds

82.3% of 2,329 official scheduled DSM-to-DEN flights arrived on time; 10.8% arrived at least 30 minutes late and 0.6% 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 SIGNALLower disruption
82.3%arrived on time
10.8%30+ min late
0.6%cancelled
2,329scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.8%all scheduled flights
120+ minutes late3.6%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+4.6 mincompleted flights

Which departure time was most reliable for DSM to DEN?

Among qualifying DSM-to-DEN departure window results, Early morning had the highest on-time rate: 90.9% of 716 flights. Evening was lowest at 65.6% across 517 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning71690.9%5.3%1.0%
Late morning53883.3%7.1%0.7%
Afternoon55885.8%7.7%0.5%
Evening51765.6%25.5%0.0%

Which weekday was most reliable for DSM to DEN?

Among qualifying DSM-to-DEN weekday results, Sunday had the highest on-time rate: 86.0% of 321 flights. Friday was lowest at 79.7% across 364 flights.

DayFlightsOn time30+ minCancelled
Monday36379.9%11.6%1.1%
Tuesday32683.1%11.3%0.3%
Wednesday32783.8%9.5%0.0%
Thursday33082.7%11.2%0.0%
Friday36479.7%13.5%0.5%
Saturday29881.5%10.4%1.3%
Sunday32186.0%7.5%0.9%

Which airline was most reliable for DSM to DEN?

Among qualifying DSM-to-DEN airline results, SkyWest Airlines had the highest on-time rate: 89.2% of 936 flights. United Airlines was lowest at 73.4% across 681 flights.

AirlineFlightsOn time30+ minCancelled
SkyWest Airlines93689.2%5.8%0.7%
United Airlines68173.4%16.2%0.6%
Southwest Airlines55982.8%10.7%0.5%
Frontier Airlines15377.8%17.6%0.0%

Which month was most reliable for DSM to DEN?

Among qualifying DSM-to-DEN month results, April 2026 had the highest on-time rate: 90.4% of 188 flights. August 2025 was lowest at 73.5% across 226 flights.

MonthFlightsOn time30+ minCancelled
July 202522474.1%15.2%0.0%
August 202522673.5%16.8%0.0%
September 202522387.4%5.8%0.0%
October 202519889.4%4.5%0.0%
November 202516487.8%7.9%3.0%
December 202516779.0%14.4%0.0%
January 202616284.0%11.1%0.6%
February 202614982.6%10.1%1.3%
March 202619283.9%9.4%3.1%
April 202618890.4%6.4%0.0%
May 202621782.9%10.6%0.0%
June 202621976.3%15.5%0.0%

What drove DSM to DEN delay minutes?

National airspace was the largest recorded DSM-to-DEN delay category, accounting for 34.0% of 32,899 BTS-attributed delay minutes during July 2025–June 2026.

Airline32.5%
Late aircraft22.2%
National airspace34.0%
Weather11.4%
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.