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Route Reliability

New Orleans → Washington

MSY–IAD · 955 miles · Louis Armstrong New Orleans International Airport to Washington Dulles International Airport

96
Nerd Approved
WanderNerd Reliability Score
91%
Arrive within 15 minutes
5 min early
Average arrival delay
0.6%
Cancelled
692
Flights in the data

Data through May 2026.

Airlines on this route

  • United Airlines91% on time · 689 flights
  • Frontier Airlines100% on time · 3 flights

Too little history on this route to call a winner. We rank airlines only after 100 flights each.

What the data says

Morning flights do better here.

MSY–IAD flights departing between 6–9 AM arrived on time 93% of the time, versus 71% between 3–6 PM.

Monday is the weak spot.

MSY–IAD flights arrived on time 96% of the time on Tuesdays. On Mondays: 86%.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon86%(106 flights)
  • Tue96%(79 flights)
  • Wed92%(84 flights)
  • Thu92%(105 flights)
  • Fri94%(108 flights)
  • Sat90%(100 flights)
  • Sun90%(105 flights)
On-time by departure window
  • 6–9 AM93%(308 flights)
  • 9 AM–12 PM91%(11 flights)
  • 12–3 PM91%(347 flights)
  • 3–6 PM71%(21 flights)
On-time trend by month
87%
May

Jun 85% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202585%59
July 202584%61
August 202594%54
September 202598%48
October 202591%55
November 202592%60
December 202593%60
January 202696%51
February 202691%53
March 202692%51
April 202695%61
May 202687%74

Same trip, other airports

Keep nerding

Based on 692 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.