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

Eugene, OR (EUG) to Seattle, WA (SEA) flight delay odds

86.5% of 1,954 official scheduled EUG-to-SEA flights arrived on time; 7.0% arrived at least 30 minutes late and 1.4% 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
86.5%arrived on time
7.0%30+ min late
1.4%cancelled
1,954scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late3.2%all scheduled flights
120+ minutes late1.4%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival-2.3 mincompleted flights

Which departure time was most reliable for EUG to SEA?

Among qualifying EUG-to-SEA departure window results, Early morning had the highest on-time rate: 89.8% of 733 flights. Afternoon was lowest at 77.9% across 335 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning73389.8%4.6%1.2%
Late morning46789.3%4.5%1.7%
Afternoon33577.9%14.9%1.2%
Evening41984.7%7.6%1.4%

Which weekday was most reliable for EUG to SEA?

Among qualifying EUG-to-SEA weekday results, Tuesday had the highest on-time rate: 89.6% of 289 flights. Friday was lowest at 83.5% across 279 flights.

DayFlightsOn time30+ minCancelled
Monday28187.2%5.3%1.4%
Tuesday28989.6%3.8%0.3%
Wednesday28484.9%6.7%2.8%
Thursday28385.2%9.9%1.1%
Friday27983.5%6.8%2.2%
Saturday26887.3%9.0%0.7%
Sunday27088.1%7.8%1.1%

Which airline was most reliable for EUG to SEA?

Among qualifying EUG-to-SEA airline results, SkyWest Airlines had the highest on-time rate: 86.9% of 1,565 flights. Alaska Airlines was lowest at 85.1% across 389 flights.

AirlineFlightsOn time30+ minCancelled
SkyWest Airlines1,56586.9%6.8%1.4%
Alaska Airlines38985.1%8.0%1.3%

Which month was most reliable for EUG to SEA?

Among qualifying EUG-to-SEA month results, April 2026 had the highest on-time rate: 95.5% of 111 flights. May 2026 was lowest at 82.4% across 131 flights.

MonthFlightsOn time30+ minCancelled
July 202518483.7%10.9%0.5%
August 202519685.2%7.1%0.5%
September 202521090.5%6.2%0.5%
October 202516585.5%7.9%1.2%
November 202513585.2%3.0%6.7%
December 202515088.7%6.7%0.0%
January 202617084.1%4.1%2.9%
February 202617490.8%4.0%0.6%
March 202617285.5%6.4%4.1%
April 202611195.5%2.7%0.0%
May 202613182.4%13.7%0.0%
June 202615682.7%10.9%0.0%

What drove EUG to SEA delay minutes?

Airline was the largest recorded EUG-to-SEA delay category, accounting for 58.1% of 14,587 BTS-attributed delay minutes during July 2025–June 2026.

Airline58.1%
Late aircraft24.4%
National airspace8.1%
Weather9.0%
Security0.4%
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.