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

Charlotte, NC (CLT) to Chicago, IL (MDW) flight delay odds

Historically, 73.9% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 719 flights.

HISTORICAL ROUTE SIGNALGenerally reliable
73.9%arrived on time
14.2%30+ min late
2.1%cancelled
719scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.4%all scheduled flights
120+ minutes late3.2%all scheduled flights
Diverted0.7%did not reach as scheduled
Average arrival+10.0 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 morning31486.6%3.2%2.5%
Afternoon6867.6%14.7%1.5%
Evening32261.8%25.5%1.9%

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
Monday11075.5%14.5%1.8%
Tuesday10782.2%11.2%0.0%
Wednesday10376.7%12.6%1.0%
Thursday10966.1%19.3%2.8%
Friday10977.1%11.0%1.8%
Saturday7467.6%16.2%4.1%
Sunday10770.1%15.0%3.7%

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
Southwest Airlines71973.9%14.2%2.1%

Monthly trend

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

MonthFlightsOn time30+ minCancelled
July 20258461.9%23.8%2.4%
August 20256071.7%16.7%3.3%
September 20255692.9%3.6%0.0%
October 20256280.6%12.9%0.0%
November 20255773.7%14.0%5.3%
December 20256070.0%16.7%1.7%
January 20263781.1%5.4%5.4%
February 20264276.2%7.1%2.4%
March 20266061.7%16.7%3.3%
April 20266085.0%8.3%0.0%
May 20266274.2%14.5%0.0%
June 20267968.4%19.0%2.5%

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.

Airline36.0%
Late aircraft49.7%
National airspace11.7%
Weather2.6%
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.