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

Washington, DC (IAD) to New Orleans, LA (MSY) flight delay odds

85.0% of 641 official scheduled IAD-to-MSY flights arrived on time; 10.5% arrived at least 30 minutes late and 0.5% 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 SIGNALLower disruption
85.0%arrived on time
10.5%30+ min late
0.5%cancelled
641scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.4%all scheduled flights
120+ minutes late2.5%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+1.0 mincompleted flights

Which departure time was most reliable for IAD to MSY?

Among qualifying IAD-to-MSY departure window results, Late morning had the highest on-time rate: 96.8% of 63 flights. Evening was lowest at 81.1% across 365 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning18988.4%6.3%1.1%
Late morning6396.8%3.2%0.0%
Evening36581.1%14.2%0.3%

Which weekday was most reliable for IAD to MSY?

Among qualifying IAD-to-MSY weekday results, Monday had the highest on-time rate: 91.3% of 103 flights. Sunday was lowest at 73.0% across 89 flights.

DayFlightsOn time30+ minCancelled
Monday10391.3%6.8%0.0%
Tuesday7689.5%5.3%1.3%
Wednesday7889.7%9.0%0.0%
Thursday10285.3%10.8%0.0%
Friday10681.1%11.3%0.0%
Saturday8786.2%9.2%0.0%
Sunday8973.0%20.2%2.2%

Which airline was most reliable for IAD to MSY?

Only United Airlines met the IAD-to-MSY airline threshold: 84.8% of 623 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
United Airlines62384.8%10.6%0.5%
Republic Airways1593.3%6.7%0.0%
Frontier Airlines3100.0%0.0%0.0%

Which month was most reliable for IAD to MSY?

Among qualifying IAD-to-MSY month results, April 2026 had the highest on-time rate: 100.0% of 60 flights. December 2025 was lowest at 68.8% across 48 flights.

MonthFlightsOn time30+ minCancelled
July 20255870.7%24.1%0.0%
August 20255580.0%7.3%1.8%
September 20254595.6%4.4%0.0%
October 20255592.7%5.5%0.0%
November 20256085.0%8.3%0.0%
December 20254868.8%18.8%0.0%
January 20264586.7%8.9%4.4%
February 20265088.0%12.0%0.0%
March 20265184.3%11.8%0.0%
April 202660100.0%0.0%0.0%
May 20267090.0%4.3%0.0%
June 20264475.0%25.0%0.0%

What drove IAD to MSY delay minutes?

Late aircraft was the largest recorded IAD-to-MSY delay category, accounting for 50.3% of 7,363 BTS-attributed delay minutes during July 2025–June 2026.

Airline21.5%
Late aircraft50.3%
National airspace20.5%
Weather7.7%
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.