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

Atlanta, GA (ATL) to New Orleans, LA (MSY) flight delay odds

80.1% of 4,052 official scheduled ATL-to-MSY flights arrived on time; 11.8% arrived at least 30 minutes late and 1.5% 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
80.1%arrived on time
11.8%30+ min late
1.5%cancelled
4,052scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late5.9%all scheduled flights
120+ minutes late1.9%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+4.6 mincompleted flights

Which departure time was most reliable for ATL to MSY?

Among qualifying ATL-to-MSY departure window results, Early morning had the highest on-time rate: 89.3% of 440 flights. Evening was lowest at 73.5% across 841 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning44089.3%3.6%2.7%
Late morning74886.2%8.0%1.3%
Afternoon1,42179.5%11.8%1.1%
Evening84173.5%16.4%1.3%
Night60276.4%15.9%1.8%

Which weekday was most reliable for ATL to MSY?

Among qualifying ATL-to-MSY weekday results, Wednesday had the highest on-time rate: 88.9% of 539 flights. Sunday was lowest at 71.5% across 624 flights.

DayFlightsOn time30+ minCancelled
Monday61477.9%12.4%1.8%
Tuesday53883.8%8.9%0.7%
Wednesday53988.9%5.0%0.4%
Thursday61583.1%11.1%0.8%
Friday61778.1%13.9%1.1%
Saturday50579.0%10.5%2.4%
Sunday62471.5%19.2%2.9%

Which airline was most reliable for ATL to MSY?

Among qualifying ATL-to-MSY airline results, Delta Air Lines had the highest on-time rate: 81.9% of 3,275 flights. Frontier Airlines was lowest at 62.8% across 231 flights.

AirlineFlightsOn time30+ minCancelled
Delta Air Lines3,27581.9%10.6%1.5%
Southwest Airlines36377.7%11.8%0.3%
Frontier Airlines23162.8%26.4%1.3%
Spirit Airlines18074.4%15.6%2.8%
American Airlines3100.0%0.0%0.0%

Which month was most reliable for ATL to MSY?

Among qualifying ATL-to-MSY month results, September 2025 had the highest on-time rate: 88.5% of 304 flights. July 2025 was lowest at 69.4% across 340 flights.

MonthFlightsOn time30+ minCancelled
July 202534069.4%21.5%1.2%
August 202533277.1%16.6%0.9%
September 202530488.5%5.6%0.0%
October 202539282.9%9.4%0.0%
November 202537185.2%6.7%2.2%
December 202535676.7%13.8%2.5%
January 202630877.9%11.0%4.2%
February 202631685.1%10.1%0.9%
March 202634777.2%14.1%3.2%
April 202633584.5%8.4%0.6%
May 202634875.6%12.4%0.9%
June 202630381.8%11.9%1.0%

What drove ATL to MSY delay minutes?

Airline was the largest recorded ATL-to-MSY delay category, accounting for 41.8% of 43,968 BTS-attributed delay minutes during July 2025–June 2026.

Airline41.8%
Late aircraft36.8%
National airspace16.0%
Weather5.4%
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.