FlightRecord

New Orleans (MSY) to Washington (IAD): On-Time Performance

Data through May 2026

New Orleans (MSY) to Washington (IAD) effectively runs on two schedules. In October 2024, 98% of arrivals were on time; in June 2024 that fell to 81% — a 17-point seasonal swing. Across the full period the route averages 90% on-time against a national 78%.

On-time
90%
arrived <15 min late
Avg delay
7 min
completed flights
Cancelled
1.3%
Flights/day
1.8
last 12 months
Duration
2h 29m
scheduled
Distance
955 mi

Monthly on-time trend

Monthly on-time percentage for MSY to IAD flights50%75%100%June 2024: 81% on-time (58 flights)81Jun 2024July 2024: 82% on-time (39 flights)82August 2024: 92% on-time (50 flights)92September 2024: 96% on-time (59 flights)96Sep 2024October 2024: 98% on-time (62 flights)98November 2024: 88% on-time (60 flights)88December 2024: 89% on-time (47 flights)89Dec 2024January 2025: 85% on-time (52 flights)85February 2025: 93% on-time (55 flights)93March 2025: 91% on-time (57 flights)91Mar 2025April 2025: 92% on-time (60 flights)92May 2025: 83% on-time (59 flights)83June 2025: 84% on-time (52 flights)84Jun 2025July 2025: 83% on-time (58 flights)83August 2025: 94% on-time (55 flights)94September 2025: 98% on-time (45 flights)98Sep 2025October 2025: 91% on-time (55 flights)91November 2025: 92% on-time (60 flights)92December 2025: 94% on-time (48 flights)94Dec 2025January 2026: 95% on-time (45 flights)95February 2026: 90% on-time (50 flights)90March 2026: 90% on-time (51 flights)90Mar 2026April 2026: 95% on-time (60 flights)95May 2026: 86% on-time (70 flights)86

Best time to fly from MSY to IAD

By day of week

DayOn-timeAvg delay
Monday87%10 min
Tuesday91%4 min
Wednesdaybest92%5 min
Thursday91%8 min
Friday90%7 min
Saturday91%6 min
Sunday89%8 min

What causes delays on this route

Share of total delay minutes by cause, as reported by carriers to the US DOT.

  • Late-arriving aircraft17%
  • Airline operations57%
  • National airspace system23%
  • Weather4%

Frequently asked questions

How often are flights from MSY to IAD delayed?
10% of MSY–IAD flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 7 minutes.
How long is the flight from MSY to IAD?
The scheduled MSY–IAD flight time averages 2h 29m over 955 miles. Actual arrival times vary — flights on this route land 15+ minutes late 10% of the time.
How often are MSY to IAD flights cancelled?
1.3% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
What is the worst month to fly from MSY to IAD?
June 2024 was the roughest month in this dataset, with only 81% of arrivals on time. The best was October 2024 at 98%. If your dates are flexible, that 17-point gap is worth planning around.

Based on 1,307 flights, 2024-062026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.