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

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

78.6% of 1,084 official scheduled IAH-to-MEM flights arrived on time; 12.3% 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
78.6%arrived on time
12.3%30+ min late
1.0%cancelled
1,084scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.5%all scheduled flights
120+ minutes late2.9%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+7.7 mincompleted flights

Which departure time was most reliable for IAH to MEM?

Among qualifying IAH-to-MEM departure window results, Early morning had the highest on-time rate: 84.5% of 343 flights. Evening was lowest at 71.8% across 354 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning34384.5%7.9%0.9%
Late morning5172.5%13.7%0.0%
Afternoon32282.3%12.4%0.9%
Evening35471.8%15.5%1.1%

Which weekday was most reliable for IAH to MEM?

Among qualifying IAH-to-MEM weekday results, Wednesday had the highest on-time rate: 87.8% of 156 flights. Friday was lowest at 67.3% across 150 flights.

DayFlightsOn time30+ minCancelled
Monday15974.2%12.6%2.5%
Tuesday15179.5%12.6%0.7%
Wednesday15687.8%6.4%0.6%
Thursday15687.8%7.1%0.0%
Friday15067.3%18.7%0.0%
Saturday15576.8%16.8%1.3%
Sunday15776.4%12.1%1.9%

Which airline was most reliable for IAH to MEM?

Among qualifying IAH-to-MEM airline results, SkyWest Airlines had the highest on-time rate: 82.6% of 725 flights. United Airlines was lowest at 70.5% across 359 flights.

AirlineFlightsOn time30+ minCancelled
SkyWest Airlines72582.6%10.6%0.8%
United Airlines35970.5%15.6%1.4%

Which month was most reliable for IAH to MEM?

Among qualifying IAH-to-MEM month results, September 2025 had the highest on-time rate: 92.1% of 101 flights. April 2026 was lowest at 72.0% across 118 flights.

MonthFlightsOn time30+ minCancelled
July 20258877.3%11.4%0.0%
August 20259176.9%13.2%1.1%
September 202510192.1%5.9%0.0%
October 20259382.8%11.8%0.0%
November 20258978.7%10.1%0.0%
December 20257978.5%15.2%0.0%
January 20267975.9%12.7%7.6%
February 20266982.6%11.6%0.0%
March 20269272.8%17.4%2.2%
April 202611872.0%15.3%0.8%
May 20269575.8%12.6%0.0%
June 20269078.9%10.0%1.1%

What drove IAH to MEM delay minutes?

Airline was the largest recorded IAH-to-MEM delay category, accounting for 41.6% of 13,805 BTS-attributed delay minutes during July 2025–June 2026.

Airline41.6%
Late aircraft39.5%
National airspace10.4%
Weather8.5%
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.