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

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

72.9% of 1,917 official scheduled SEA-to-OAK flights arrived on time; 15.6% arrived at least 30 minutes late and 0.7% 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
72.9%arrived on time
15.6%30+ min late
0.7%cancelled
1,917scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.1%all scheduled flights
120+ minutes late1.9%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+8.4 mincompleted flights

Which departure time was most reliable for SEA to OAK?

Among qualifying SEA-to-OAK departure window results, Early morning had the highest on-time rate: 96.7% of 245 flights. Evening was lowest at 58.6% across 457 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning24596.7%2.9%0.4%
Late morning56576.3%12.6%0.5%
Afternoon37873.8%12.4%0.3%
Evening45758.6%27.1%0.4%
Night27266.9%18.8%2.6%

Which weekday was most reliable for SEA to OAK?

Among qualifying SEA-to-OAK weekday results, Saturday had the highest on-time rate: 82.9% of 222 flights. Thursday was lowest at 65.7% across 283 flights.

DayFlightsOn time30+ minCancelled
Monday28567.4%18.9%0.7%
Tuesday27879.1%10.1%1.8%
Wednesday27479.6%11.7%0.4%
Thursday28365.7%18.7%0.7%
Friday28269.9%19.1%0.4%
Saturday22282.9%10.4%0.0%
Sunday29368.3%19.1%1.0%

Which airline was most reliable for SEA to OAK?

Among qualifying SEA-to-OAK airline results, SkyWest Airlines had the highest on-time rate: 80.0% of 90 flights. Southwest Airlines was lowest at 71.5% across 1,127 flights.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines1,12771.5%17.1%0.1%
Alaska Airlines70074.1%14.1%1.6%
SkyWest Airlines9080.0%8.9%2.2%

Which month was most reliable for SEA to OAK?

Among qualifying SEA-to-OAK month results, February 2026 had the highest on-time rate: 82.4% of 136 flights. August 2025 was lowest at 63.8% across 199 flights.

MonthFlightsOn time30+ minCancelled
July 202523364.8%23.2%0.9%
August 202519963.8%19.1%0.5%
September 202516671.1%14.5%0.0%
October 202517879.2%11.2%0.6%
November 202515377.8%10.5%2.0%
December 202515164.2%23.8%0.7%
January 202614781.0%8.2%1.4%
February 202613682.4%8.8%0.0%
March 202612474.2%12.9%2.4%
April 202612081.7%9.2%0.0%
May 202612475.0%14.5%0.8%
June 202618669.9%23.1%0.0%

What drove SEA to OAK delay minutes?

Late aircraft was the largest recorded SEA-to-OAK delay category, accounting for 57.5% of 25,726 BTS-attributed delay minutes during July 2025–June 2026.

Airline34.3%
Late aircraft57.5%
National airspace7.4%
Weather0.3%
Security0.5%
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.