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

Oakland, CA (OAK) to Seattle, WA (SEA) flight delay odds

76.6% of 1,901 official scheduled OAK-to-SEA flights arrived on time; 13.0% arrived at least 30 minutes late and 0.9% 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
76.6%arrived on time
13.0%30+ min late
0.9%cancelled
1,901scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late5.0%all scheduled flights
120+ minutes late1.3%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+5.4 mincompleted flights

Which departure time was most reliable for OAK to SEA?

Among qualifying OAK-to-SEA departure window results, Early morning had the highest on-time rate: 91.4% of 592 flights. Night was lowest at 57.7% across 142 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning59291.4%3.2%1.4%
Late morning27179.0%8.9%0.4%
Afternoon49969.7%17.8%0.8%
Evening39768.3%19.4%1.0%
Night14257.7%27.5%0.0%

Which weekday was most reliable for OAK to SEA?

Among qualifying OAK-to-SEA weekday results, Saturday had the highest on-time rate: 86.7% of 225 flights. Friday was lowest at 70.0% across 280 flights.

DayFlightsOn time30+ minCancelled
Monday28275.2%12.1%1.4%
Tuesday27484.3%10.2%1.1%
Wednesday27277.6%11.4%0.7%
Thursday28173.0%16.0%0.4%
Friday28070.0%16.8%1.4%
Saturday22586.7%7.6%0.4%
Sunday28771.8%16.0%0.7%

Which airline was most reliable for OAK to SEA?

Among qualifying OAK-to-SEA airline results, Alaska Airlines had the highest on-time rate: 79.7% of 700 flights. Southwest Airlines was lowest at 74.7% across 1,130 flights.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines1,13074.7%14.7%0.3%
Alaska Airlines70079.7%10.4%1.7%
SkyWest Airlines7176.1%12.7%2.8%

Which month was most reliable for OAK to SEA?

Among qualifying OAK-to-SEA month results, February 2026 had the highest on-time rate: 91.2% of 137 flights. June 2026 was lowest at 65.2% across 187 flights.

MonthFlightsOn time30+ minCancelled
July 202523370.8%18.0%0.9%
August 202519970.4%15.6%0.5%
September 202516674.7%13.9%0.0%
October 202516178.3%11.2%0.6%
November 202515382.4%6.5%3.3%
December 202515176.2%13.9%0.7%
January 202614786.4%9.5%1.4%
February 202613791.2%3.6%0.0%
March 202612478.2%10.5%3.2%
April 202611974.8%13.4%0.8%
May 202612480.6%8.9%0.0%
June 202618765.2%23.5%0.0%

What drove OAK to SEA delay minutes?

Late aircraft was the largest recorded OAK-to-SEA delay category, accounting for 48.3% of 21,161 BTS-attributed delay minutes during July 2025–June 2026.

Airline33.7%
Late aircraft48.3%
National airspace17.4%
Weather0.5%
Security0.1%
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.