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

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

Historically, 83.1% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 2,277 flights.

HISTORICAL ROUTE SIGNALLower disruption
83.1%arrived on time
9.4%30+ min late
0.2%cancelled
2,277scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late3.9%all scheduled flights
120+ minutes late1.2%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+1.3 mincompleted flights

When is this route most reliable?

The same route can behave differently through the day. These are scheduled departure windows, not actual departure times. Small time windows with fewer than 40 flights are withheld.

Departure windowFlightsOn time30+ minCancelled
Early morning52696.0%1.7%0.0%
Late morning40189.0%6.2%0.0%
Afternoon53077.5%10.8%0.4%
Evening57975.3%14.9%0.2%
Night24176.3%14.9%0.4%

Weekday comparison

Day-of-week results use at least 30 scheduled flights per row. Look for broad patterns, not tiny percentage differences.

DayFlightsOn time30+ minCancelled
Monday34381.6%10.5%0.6%
Tuesday33089.7%5.5%0.0%
Wednesday32588.3%6.2%0.0%
Thursday34578.0%12.2%0.0%
Friday34181.8%9.4%0.0%
Saturday25884.5%10.1%0.0%
Sunday33578.8%11.6%0.6%

Airline comparison

Marketing-carrier results make codeshare flights easier to compare as travelers buy them. Dedicated route-airline reports require at least 160 flights.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines2,27783.1%9.4%0.2%

Monthly trend

Month-by-month results show whether a twelve-month average hides an unusual period.

MonthFlightsOn time30+ minCancelled
July 202518077.8%13.3%0.0%
August 202517785.9%7.3%0.0%
September 202517691.5%3.4%0.0%
October 202520585.4%8.3%0.0%
November 202519687.8%7.7%0.0%
December 202519284.4%7.3%0.5%
January 202618588.1%4.9%0.0%
February 202618788.2%4.8%0.0%
March 202620070.0%18.5%1.5%
April 202619386.5%5.7%0.0%
May 202619476.8%13.4%0.0%
June 202619276.6%16.7%0.0%

What drove reported delay minutes?

BTS cause minutes are reported for qualifying delayed flights. These shares describe recorded delay minutes—not the chance that a particular cause will affect your next flight.

Airline33.7%
Late aircraft53.6%
National airspace7.8%
Weather4.7%
Security0.2%
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.