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

Memphis, TN (MEM) to Houston, TX (IAH) flight delay odds

79.2% of 1,082 official scheduled MEM-to-IAH flights arrived on time; 11.7% arrived at least 30 minutes late and 1.0% 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
79.2%arrived on time
11.7%30+ min late
1.0%cancelled
1,082scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.3%all scheduled flights
120+ minutes late2.5%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+5.4 mincompleted flights

Which departure time was most reliable for MEM to IAH?

Among qualifying MEM-to-IAH departure window results, Early morning had the highest on-time rate: 82.9% of 357 flights. Afternoon was lowest at 71.6% across 313 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning35782.9%7.0%1.7%
Late morning40881.6%10.8%0.7%
Afternoon31371.6%18.5%0.6%

Which weekday was most reliable for MEM to IAH?

Among qualifying MEM-to-IAH weekday results, Tuesday had the highest on-time rate: 85.1% of 161 flights. Friday was lowest at 76.2% across 151 flights.

DayFlightsOn time30+ minCancelled
Monday15780.3%12.1%1.9%
Tuesday16185.1%9.3%0.6%
Wednesday15078.7%10.0%0.7%
Thursday15179.5%12.6%0.7%
Friday15176.2%10.6%0.0%
Saturday15877.8%15.8%1.3%
Sunday15476.6%11.7%1.9%

Which airline was most reliable for MEM to IAH?

Among qualifying MEM-to-IAH airline results, United Airlines had the highest on-time rate: 83.1% of 360 flights. SkyWest Airlines was lowest at 77.3% across 722 flights.

AirlineFlightsOn time30+ minCancelled
SkyWest Airlines72277.3%14.1%0.7%
United Airlines36083.1%6.9%1.7%

Which month was most reliable for MEM to IAH?

Among qualifying MEM-to-IAH month results, September 2025 had the highest on-time rate: 94.0% of 100 flights. December 2025 was lowest at 69.2% across 78 flights.

MonthFlightsOn time30+ minCancelled
July 20258880.7%14.8%0.0%
August 20259077.8%10.0%1.1%
September 202510094.0%3.0%0.0%
October 20259377.4%9.7%0.0%
November 20258976.4%11.2%0.0%
December 20257869.2%21.8%0.0%
January 20268077.5%6.2%8.8%
February 20266987.0%10.1%0.0%
March 20269178.0%14.3%2.2%
April 202611978.2%11.8%0.8%
May 20269580.0%12.6%0.0%
June 20269073.3%16.7%0.0%

What drove MEM to IAH delay minutes?

Late aircraft was the largest recorded MEM-to-IAH delay category, accounting for 33.7% of 15,131 BTS-attributed delay minutes during July 2025–June 2026.

Airline27.8%
Late aircraft33.7%
National airspace30.1%
Weather8.3%
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.