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

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

Historically, 90.6% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 641 flights.

HISTORICAL ROUTE SIGNALLower disruption
90.6%arrived on time
5.3%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 late3.7%all scheduled flights
120+ minutes late1.6%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival-5.1 mincompleted flights

When is this route most reliable?

The same route can behave differently through the day. These are scheduled departure windows, not actual departure times. Small time windows with fewer than 40 flights are withheld.

Departure windowFlightsOn time30+ minCancelled
Early morning30191.7%5.6%0.3%
Afternoon29491.2%4.1%0.7%

Weekday comparison

Day-of-week results use at least 30 scheduled flights per row. Look for broad patterns, not tiny percentage differences.

DayFlightsOn time30+ minCancelled
Monday10389.3%5.8%0.0%
Tuesday7694.7%1.3%1.3%
Wednesday7893.6%5.1%0.0%
Thursday10291.2%5.9%0.0%
Friday10691.5%5.7%0.0%
Saturday8788.5%4.6%0.0%
Sunday8986.5%7.9%2.2%

Airline comparison

Marketing-carrier results make codeshare flights easier to compare as travelers buy them. Dedicated route-airline reports require at least 160 flights.

AirlineFlightsOn time30+ minCancelled
United Airlines62390.9%5.3%0.5%
Republic Airways1580.0%6.7%0.0%
Frontier Airlines3100.0%0.0%0.0%

Monthly trend

Month-by-month results show whether a twelve-month average hides an unusual period.

MonthFlightsOn time30+ minCancelled
July 20255882.8%10.3%0.0%
August 20255592.7%5.5%1.8%
September 20254597.8%0.0%0.0%
October 20255590.9%9.1%0.0%
November 20256091.7%8.3%0.0%
December 20254893.8%2.1%0.0%
January 20264591.1%2.2%4.4%
February 20265090.0%2.0%0.0%
March 20265190.2%3.9%0.0%
April 20266095.0%5.0%0.0%
May 20267085.7%4.3%0.0%
June 20264488.6%9.1%0.0%

What drove reported delay minutes?

BTS cause minutes are reported for qualifying delayed flights. These shares describe recorded delay minutes—not the chance that a particular cause will affect your next flight.

Airline54.7%
Late aircraft13.2%
National airspace25.5%
Weather6.6%
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.