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

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

81.9% of 4,056 official scheduled MSY-to-ATL flights arrived on time; 10.2% 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
81.9%arrived on time
10.2%30+ min late
1.5%cancelled
4,056scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late5.3%all scheduled flights
120+ minutes late2.1%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+3.0 mincompleted flights

Which departure time was most reliable for MSY to ATL?

Among qualifying MSY-to-ATL departure window results, Early morning had the highest on-time rate: 89.4% of 1,099 flights. Evening was lowest at 73.5% across 770 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning1,09989.4%5.5%1.5%
Late morning86288.4%5.2%2.4%
Afternoon1,30076.4%13.7%0.8%
Evening77073.5%16.2%1.6%

Which weekday was most reliable for MSY to ATL?

Among qualifying MSY-to-ATL weekday results, Wednesday had the highest on-time rate: 93.0% of 527 flights. Sunday was lowest at 73.7% across 623 flights.

DayFlightsOn time30+ minCancelled
Monday62175.4%13.2%1.8%
Tuesday54085.4%8.1%1.3%
Wednesday52793.0%3.2%0.4%
Thursday61884.6%8.1%0.2%
Friday61880.7%12.3%1.3%
Saturday50982.9%10.0%2.4%
Sunday62373.7%15.1%3.2%

Which airline was most reliable for MSY to ATL?

Among qualifying MSY-to-ATL airline results, Delta Air Lines had the highest on-time rate: 85.7% of 3,278 flights. Frontier Airlines was lowest at 56.0% across 232 flights.

AirlineFlightsOn time30+ minCancelled
Delta Air Lines3,27885.7%7.6%1.6%
Southwest Airlines36170.4%16.3%0.3%
Frontier Airlines23256.0%29.3%1.3%
Spirit Airlines18368.9%20.8%2.7%
American Airlines2100.0%0.0%0.0%

Which month was most reliable for MSY to ATL?

Among qualifying MSY-to-ATL month results, September 2025 had the highest on-time rate: 94.1% of 304 flights. May 2026 was lowest at 74.4% across 348 flights.

MonthFlightsOn time30+ minCancelled
July 202534078.8%13.2%1.2%
August 202533380.8%10.5%1.2%
September 202530494.1%3.9%0.0%
October 202539384.2%8.9%0.0%
November 202537381.5%10.2%2.4%
December 202535477.7%13.8%2.8%
January 202631087.7%5.5%3.9%
February 202631682.6%8.2%1.3%
March 202634676.9%11.3%3.2%
April 202633585.7%7.5%0.6%
May 202634874.4%16.1%0.9%
June 202630480.3%12.2%0.7%

What drove MSY to ATL delay minutes?

Late aircraft was the largest recorded MSY-to-ATL delay category, accounting for 45.4% of 43,359 BTS-attributed delay minutes during July 2025–June 2026.

Airline27.7%
Late aircraft45.4%
National airspace24.4%
Weather2.4%
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.