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

Chicago, IL (ORD) to Des Moines, IA (DSM) flight delay odds

68.1% of 3,405 official scheduled ORD-to-DSM flights arrived on time; 19.6% arrived at least 30 minutes late and 3.8% 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
68.1%arrived on time
19.6%30+ min late
3.8%cancelled
3,405scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late11.6%all scheduled flights
120+ minutes late5.3%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+16.7 mincompleted flights

Which departure time was most reliable for ORD to DSM?

Among qualifying ORD-to-DSM departure window results, Early morning had the highest on-time rate: 76.9% of 372 flights. Night was lowest at 52.1% across 409 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning37276.9%12.9%2.4%
Late morning74576.8%12.9%3.2%
Afternoon1,14069.4%19.7%3.2%
Evening73962.0%24.4%3.8%
Night40952.1%28.9%7.6%

Which weekday was most reliable for ORD to DSM?

Among qualifying ORD-to-DSM weekday results, Tuesday had the highest on-time rate: 77.1% of 489 flights. Monday was lowest at 62.9% across 509 flights.

DayFlightsOn time30+ minCancelled
Monday50962.9%21.8%4.5%
Tuesday48977.1%14.1%2.9%
Wednesday47970.8%19.4%2.7%
Thursday49765.8%20.9%3.6%
Friday48567.4%17.3%4.7%
Saturday44368.8%19.0%2.5%
Sunday50364.6%24.3%5.4%

Which airline was most reliable for ORD to DSM?

Among qualifying ORD-to-DSM airline results, Envoy Air had the highest on-time rate: 73.3% of 465 flights. American Airlines was lowest at 58.8% across 262 flights.

AirlineFlightsOn time30+ minCancelled
SkyWest Airlines1,16863.4%22.5%5.1%
United Airlines94372.0%16.6%1.7%
Republic Airways56671.7%16.4%4.9%
Envoy Air46573.3%17.0%2.6%
American Airlines26258.8%28.2%5.0%
PSA Airlines10.0%100.0%0.0%

Which month was most reliable for ORD to DSM?

Among qualifying ORD-to-DSM month results, September 2025 had the highest on-time rate: 81.1% of 264 flights. March 2026 was lowest at 56.6% across 304 flights.

MonthFlightsOn time30+ minCancelled
July 202529459.5%25.9%6.1%
August 202529365.9%20.8%3.8%
September 202526481.1%12.9%0.4%
October 202529773.7%17.5%0.3%
November 202527071.9%13.7%8.9%
December 202527358.2%29.7%3.3%
January 202619861.6%25.3%2.0%
February 202622973.4%18.3%0.4%
March 202630456.6%24.0%7.6%
April 202636971.5%16.8%4.9%
May 202634676.3%13.6%1.2%
June 202626865.7%19.4%5.6%

What drove ORD to DSM delay minutes?

Late aircraft was the largest recorded ORD-to-DSM delay category, accounting for 45.4% of 73,499 BTS-attributed delay minutes during July 2025–June 2026.

Airline26.7%
Late aircraft45.4%
National airspace16.3%
Weather11.6%
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.