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

Colorado Springs, CO (COS) to Chicago, IL (ORD) flight delay odds

Historically, 72.5% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 1,001 flights.

HISTORICAL ROUTE SIGNALGenerally reliable
72.5%arrived on time
18.0%30+ min late
1.9%cancelled
1,001scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late11.7%all scheduled flights
120+ minutes late5.7%all scheduled flights
Diverted0.9%did not reach as scheduled
Average arrival+19.0 mincompleted flights

When is this route most reliable?

The same route can behave differently through the day. These are scheduled departure windows, not actual departure times. Small time windows with fewer than 40 flights are withheld.

Departure windowFlightsOn time30+ minCancelled
Early morning19587.2%6.7%1.0%
Late morning21577.7%14.4%1.4%
Afternoon59165.8%23.0%2.4%

Weekday comparison

Day-of-week results use at least 30 scheduled flights per row. Look for broad patterns, not tiny percentage differences.

DayFlightsOn time30+ minCancelled
Monday14468.1%21.5%1.4%
Tuesday14677.4%17.1%0.7%
Wednesday14171.6%19.9%2.1%
Thursday14174.5%14.9%2.1%
Friday14369.9%15.4%2.8%
Saturday14379.0%12.6%3.5%
Sunday14367.1%24.5%0.7%

Airline comparison

Marketing-carrier results make codeshare flights easier to compare as travelers buy them. Dedicated route-airline reports require at least 160 flights.

AirlineFlightsOn time30+ minCancelled
SkyWest Airlines82171.3%19.2%2.1%
United Airlines18078.3%12.2%1.1%

Monthly trend

Month-by-month results show whether a twelve-month average hides an unusual period.

MonthFlightsOn time30+ minCancelled
July 20259364.5%23.7%1.1%
August 20259375.3%11.8%1.1%
September 20259077.8%10.0%1.1%
October 20259380.6%14.0%0.0%
November 20258876.1%14.8%3.4%
December 20259072.2%22.2%0.0%
January 20266764.2%25.4%1.5%
February 20265667.9%17.9%0.0%
March 20266258.1%33.9%4.8%
April 20268575.3%17.6%1.2%
May 20269483.0%10.6%1.1%
June 20269066.7%21.1%7.8%

What drove reported delay minutes?

BTS cause minutes are reported for qualifying delayed flights. These shares describe recorded delay minutes—not the chance that a particular cause will affect your next flight.

Airline49.5%
Late aircraft27.7%
National airspace18.7%
Weather4.0%
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.