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

Kansas City, MO (MCI) to Chicago, IL (MDW) flight delay odds

Historically, 78.0% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 2,097 flights.

HISTORICAL ROUTE SIGNALGenerally reliable
78.0%arrived on time
11.1%30+ min late
1.1%cancelled
2,097scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late5.2%all scheduled flights
120+ minutes late2.0%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+5.7 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 morning58388.2%5.7%0.9%
Late morning38885.1%7.0%0.8%
Afternoon61974.8%11.1%1.1%
Evening46465.7%19.8%1.7%
Night4355.8%27.9%2.3%

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
Monday31774.1%12.9%1.6%
Tuesday31585.1%8.9%1.0%
Wednesday30983.5%8.7%0.6%
Thursday31775.7%10.7%0.6%
Friday31277.2%11.2%1.3%
Saturday23281.0%10.3%1.7%
Sunday29569.8%14.9%1.4%

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
Southwest Airlines2,09778.0%11.1%1.1%

Monthly trend

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

MonthFlightsOn time30+ minCancelled
July 202520369.5%15.3%2.0%
August 202518975.7%11.1%2.1%
September 202517883.7%6.2%0.0%
October 202519877.8%10.6%0.0%
November 202515781.5%7.6%3.2%
December 202516577.6%12.1%0.0%
January 202615286.2%7.2%0.0%
February 202613788.3%4.4%0.7%
March 202617473.0%16.7%4.0%
April 202617282.6%9.3%0.6%
May 202617774.0%14.1%0.0%
June 202619572.3%15.4%1.0%

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.

Airline25.1%
Late aircraft54.8%
National airspace17.2%
Weather2.9%
Security0.1%
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.