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

Minneapolis, MN (MSP) to Seattle, WA (SEA) flight delay odds

80.1% of 2,690 official scheduled MSP-to-SEA flights arrived on time; 10.6% arrived at least 30 minutes late and 1.0% 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
80.1%arrived on time
10.6%30+ min late
1.0%cancelled
2,690scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late5.4%all scheduled flights
120+ minutes late2.0%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+1.9 mincompleted flights

Which departure time was most reliable for MSP to SEA?

Among qualifying MSP-to-SEA departure window results, Early morning had the highest on-time rate: 86.9% of 687 flights. Afternoon was lowest at 73.2% across 730 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning68786.9%6.7%0.6%
Late morning48885.9%7.6%1.0%
Afternoon73073.2%13.7%1.2%
Evening57474.7%14.3%1.2%
Night21183.4%9.0%1.4%

Which weekday was most reliable for MSP to SEA?

Among qualifying MSP-to-SEA weekday results, Monday had the highest on-time rate: 81.5% of 401 flights. Sunday was lowest at 76.8% across 401 flights.

DayFlightsOn time30+ minCancelled
Monday40181.5%10.2%0.7%
Tuesday37981.5%9.8%0.0%
Wednesday37080.5%9.7%0.3%
Thursday40079.2%11.8%0.5%
Friday39981.5%9.8%1.3%
Saturday34079.7%9.7%1.5%
Sunday40176.8%12.7%3.0%

Which airline was most reliable for MSP to SEA?

Among qualifying MSP-to-SEA airline results, Delta Air Lines had the highest on-time rate: 81.1% of 1,737 flights. Alaska Airlines was lowest at 78.3% across 953 flights.

AirlineFlightsOn time30+ minCancelled
Delta Air Lines1,73781.1%10.2%0.9%
Alaska Airlines95378.3%11.2%1.3%

Which month was most reliable for MSP to SEA?

Among qualifying MSP-to-SEA month results, April 2026 had the highest on-time rate: 92.4% of 197 flights. December 2025 was lowest at 51.9% across 208 flights.

MonthFlightsOn time30+ minCancelled
July 202529581.0%12.5%1.0%
August 202529287.0%8.2%0.0%
September 202526491.3%5.3%0.8%
October 202523088.3%3.9%1.3%
November 202520282.2%7.9%1.0%
December 202520851.9%30.8%0.5%
January 202616767.7%16.2%0.6%
February 202615780.3%10.2%0.6%
March 202620062.0%15.5%6.0%
April 202619792.4%2.5%0.5%
May 202622683.6%11.1%0.9%
June 202625283.3%6.3%0.0%

What drove MSP to SEA delay minutes?

Airline was the largest recorded MSP-to-SEA delay category, accounting for 42.5% of 29,268 BTS-attributed delay minutes during July 2025–June 2026.

Airline42.5%
Late aircraft26.9%
National airspace25.6%
Weather4.7%
Security0.2%
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.