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

Houston, TX (IAH) to New Orleans, LA (MSY) flight delay odds

82.6% of 2,962 official scheduled IAH-to-MSY flights arrived on time; 12.0% arrived at least 30 minutes late and 0.3% 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 SIGNALLower disruption
82.6%arrived on time
12.0%30+ min late
0.3%cancelled
2,962scheduled 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 late2.0%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+3.0 mincompleted flights

Which departure time was most reliable for IAH to MSY?

Among qualifying IAH-to-MSY departure window results, Early morning had the highest on-time rate: 91.8% of 414 flights. Evening was lowest at 74.8% across 793 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning41491.8%4.3%0.0%
Late morning67985.6%10.6%0.1%
Afternoon72282.1%11.9%0.6%
Evening79374.8%17.8%0.5%
Night35484.5%10.5%0.0%

Which weekday was most reliable for IAH to MSY?

Among qualifying IAH-to-MSY weekday results, Tuesday had the highest on-time rate: 84.8% of 421 flights. Sunday was lowest at 79.8% across 436 flights.

DayFlightsOn time30+ minCancelled
Monday45482.8%10.8%0.7%
Tuesday42184.8%11.4%0.0%
Wednesday41383.3%12.1%0.2%
Thursday43482.7%9.4%0.2%
Friday43682.3%12.8%0.2%
Saturday36882.3%13.0%0.3%
Sunday43679.8%14.2%0.5%

Which airline was most reliable for IAH to MSY?

Among qualifying IAH-to-MSY airline results, Spirit Airlines had the highest on-time rate: 83.1% of 148 flights. United Airlines was lowest at 82.6% across 2,783 flights.

AirlineFlightsOn time30+ minCancelled
United Airlines2,78382.6%11.8%0.3%
Spirit Airlines14883.1%12.8%0.7%
Frontier Airlines2774.1%18.5%3.7%
SkyWest Airlines475.0%25.0%0.0%

Which month was most reliable for IAH to MSY?

Among qualifying IAH-to-MSY month results, September 2025 had the highest on-time rate: 91.8% of 280 flights. July 2025 was lowest at 66.5% across 242 flights.

MonthFlightsOn time30+ minCancelled
July 202524266.5%25.2%1.7%
August 202524880.2%14.9%0.4%
September 202528091.8%5.4%0.0%
October 202528685.3%8.4%0.0%
November 202525482.7%12.2%0.0%
December 202522487.1%8.9%0.0%
January 202623687.7%8.9%0.0%
February 202622786.3%9.7%0.0%
March 202625684.4%9.8%1.6%
April 202627087.0%8.5%0.0%
May 202623379.4%13.3%0.0%
June 202620668.4%21.4%0.0%

What drove IAH to MSY delay minutes?

Late aircraft was the largest recorded IAH-to-MSY delay category, accounting for 44.5% of 32,632 BTS-attributed delay minutes during July 2025–June 2026.

Airline37.0%
Late aircraft44.5%
National airspace13.1%
Weather5.4%
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.