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

Detroit, MI (DTW) to Houston, TX (IAH) flight delay odds

78.7% of 2,129 official scheduled DTW-to-IAH flights arrived on time; 13.1% arrived at least 30 minutes late and 1.1% 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
78.7%arrived on time
13.1%30+ min late
1.1%cancelled
2,129scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.6%all scheduled flights
120+ minutes late2.5%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+2.7 mincompleted flights

Which departure time was most reliable for DTW to IAH?

Among qualifying DTW-to-IAH departure window results, Late morning had the highest on-time rate: 86.3% of 102 flights. Night was lowest at 67.9% across 109 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning81482.9%9.5%1.1%
Late morning10286.3%8.8%0.0%
Afternoon68677.8%14.0%0.7%
Evening41873.0%17.0%1.4%
Night10967.9%23.9%2.8%

Which weekday was most reliable for DTW to IAH?

Among qualifying DTW-to-IAH weekday results, Tuesday had the highest on-time rate: 82.6% of 299 flights. Saturday was lowest at 74.2% across 267 flights.

DayFlightsOn time30+ minCancelled
Monday32678.5%12.9%1.8%
Tuesday29982.6%11.0%0.0%
Wednesday29280.5%13.0%0.0%
Thursday30781.1%11.7%1.3%
Friday32475.3%14.8%1.2%
Saturday26774.2%15.4%1.1%
Sunday31478.7%13.1%1.9%

Which airline was most reliable for DTW to IAH?

Among qualifying DTW-to-IAH airline results, United Airlines had the highest on-time rate: 85.8% of 281 flights. Frontier Airlines was lowest at 65.0% across 120 flights.

AirlineFlightsOn time30+ minCancelled
Delta Air Lines1,32279.0%12.9%0.8%
Spirit Airlines40377.2%14.4%1.7%
United Airlines28185.8%7.5%1.4%
Frontier Airlines12065.0%25.0%0.8%
SkyWest Airlines366.7%0.0%0.0%

Which month was most reliable for DTW to IAH?

Among qualifying DTW-to-IAH month results, September 2025 had the highest on-time rate: 94.5% of 181 flights. December 2025 was lowest at 60.0% across 170 flights.

MonthFlightsOn time30+ minCancelled
July 202519979.4%14.1%1.5%
August 202520285.1%8.4%1.0%
September 202518194.5%3.9%0.0%
October 202516891.7%6.0%0.0%
November 202519181.7%11.0%1.0%
December 202517060.0%24.7%2.4%
January 202613069.2%16.9%1.5%
February 202614984.6%10.1%0.0%
March 202620372.9%16.3%3.4%
April 202618179.0%13.3%0.6%
May 202618273.1%15.9%1.1%
June 202617371.1%17.9%0.0%

What drove DTW to IAH delay minutes?

Airline was the largest recorded DTW-to-IAH delay category, accounting for 43.3% of 26,809 BTS-attributed delay minutes during July 2025–June 2026.

Airline43.3%
Late aircraft21.0%
National airspace33.1%
Weather2.5%
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.