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

Seattle, WA (SEA) to New Orleans, LA (MSY) flight delay odds

78.8% of 627 official scheduled SEA-to-MSY flights arrived on time; 9.7% arrived at least 30 minutes late and 0.3% 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
78.8%arrived on time
9.7%30+ min late
0.3%cancelled
627scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late2.7%all scheduled flights
120+ minutes late0.8%all scheduled flights
Diverted0.5%did not reach as scheduled
Average arrival-0.1 mincompleted flights

Which departure time was most reliable for SEA to MSY?

Among qualifying SEA-to-MSY departure window results, Night had the highest on-time rate: 78.4% of 222 flights. Late morning was lowest at 78.1% across 366 flights.

Departure windowFlightsOn time30+ minCancelled
Late morning36678.1%10.1%0.5%
Night22278.4%9.5%0.0%

Which weekday was most reliable for SEA to MSY?

Among qualifying SEA-to-MSY weekday results, Tuesday had the highest on-time rate: 84.3% of 83 flights. Thursday was lowest at 73.9% across 92 flights.

DayFlightsOn time30+ minCancelled
Monday9080.0%7.8%0.0%
Tuesday8384.3%9.6%0.0%
Wednesday9077.8%10.0%0.0%
Thursday9273.9%12.0%1.1%
Friday9378.5%9.7%1.1%
Saturday8477.4%11.9%0.0%
Sunday9580.0%7.4%0.0%

Which airline was most reliable for SEA to MSY?

Only Alaska Airlines met the SEA-to-MSY airline threshold: 78.6% of 622 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Alaska Airlines62278.6%9.8%0.3%
Delta Air Lines5100.0%0.0%0.0%

Which month was most reliable for SEA to MSY?

Among qualifying SEA-to-MSY month results, February 2026 had the highest on-time rate: 96.9% of 32 flights. July 2025 was lowest at 57.4% across 61 flights.

MonthFlightsOn time30+ minCancelled
July 20256157.4%16.4%0.0%
August 20255773.7%14.0%0.0%
September 20254787.2%0.0%2.1%
October 20255485.2%9.3%0.0%
November 20255976.3%15.3%0.0%
December 20255468.5%18.5%0.0%
January 20263677.8%11.1%0.0%
February 20263296.9%3.1%0.0%
March 20264573.3%13.3%2.2%
April 20266091.7%3.3%0.0%
May 20266283.9%3.2%0.0%
June 20266081.7%6.7%0.0%

What drove SEA to MSY delay minutes?

Airline was the largest recorded SEA-to-MSY delay category, accounting for 49.1% of 4,952 BTS-attributed delay minutes during July 2025–June 2026.

Airline49.1%
Late aircraft30.5%
National airspace20.3%
Weather0.0%
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.