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

Chicago, IL (MDW) to Houston, TX (HOU) flight delay odds

72.5% of 1,841 official scheduled MDW-to-HOU flights arrived on time; 15.9% arrived at least 30 minutes late and 1.3% 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 SIGNALGenerally reliable
72.5%arrived on time
15.9%30+ min late
1.3%cancelled
1,841scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late5.8%all scheduled flights
120+ minutes late1.5%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+6.7 mincompleted flights

Which departure time was most reliable for MDW to HOU?

Among qualifying MDW-to-HOU departure window results, Early morning had the highest on-time rate: 85.7% of 539 flights. Night was lowest at 52.7% across 188 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning53985.7%8.0%0.6%
Late morning27376.6%13.2%0.7%
Afternoon34569.0%19.4%1.2%
Evening49665.9%19.6%1.8%
Night18852.7%26.1%3.2%

Which weekday was most reliable for MDW to HOU?

Among qualifying MDW-to-HOU weekday results, Tuesday had the highest on-time rate: 77.4% of 265 flights. Sunday was lowest at 64.5% across 256 flights.

DayFlightsOn time30+ minCancelled
Monday27572.0%17.1%1.1%
Tuesday26577.4%13.6%0.4%
Wednesday25476.4%13.8%0.8%
Thursday27174.5%11.8%1.5%
Friday27470.4%16.4%1.5%
Saturday24672.4%14.2%3.3%
Sunday25664.5%24.2%0.8%

Which airline was most reliable for MDW to HOU?

Only Southwest Airlines met the MDW-to-HOU airline threshold: 72.5% of 1,841 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines1,84172.5%15.9%1.3%

Which month was most reliable for MDW to HOU?

Among qualifying MDW-to-HOU month results, September 2025 had the highest on-time rate: 89.4% of 161 flights. June 2026 was lowest at 56.8% across 176 flights.

MonthFlightsOn time30+ minCancelled
July 202518659.1%22.6%2.2%
August 202516674.1%15.7%0.0%
September 202516189.4%7.5%0.0%
October 202515477.9%9.7%0.0%
November 202514369.9%15.4%6.3%
December 202514670.5%17.8%0.7%
January 202612985.3%7.0%0.0%
February 202611984.9%7.6%0.0%
March 202616171.4%18.6%2.5%
April 202615074.0%14.0%2.0%
May 202615065.3%20.7%0.0%
June 202617656.8%27.8%1.7%

What drove MDW to HOU delay minutes?

Airline was the largest recorded MDW-to-HOU delay category, accounting for 37.1% of 22,800 BTS-attributed delay minutes during July 2025–June 2026.

Airline37.1%
Late aircraft36.1%
National airspace22.4%
Weather3.8%
Security0.7%
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.