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

San Luis Obispo, CA (SBP) to Seattle, WA (SEA) flight delay odds

78.1% of 251 official scheduled SBP-to-SEA flights arrived on time; 13.1% arrived at least 30 minutes late and 1.2% 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
78.1%arrived on time
13.1%30+ min late
1.2%cancelled
251scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.0%all scheduled flights
120+ minutes late2.4%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+5.1 mincompleted flights

Which departure time was most reliable for SBP to SEA?

Among qualifying SBP-to-SEA departure window results, Afternoon had the highest on-time rate: 81.5% of 54 flights. Evening was lowest at 77.0% across 196 flights.

Departure windowFlightsOn time30+ minCancelled
Afternoon5481.5%7.4%0.0%
Evening19677.0%14.8%1.5%

Which weekday was most reliable for SBP to SEA?

Among qualifying SBP-to-SEA weekday results, Tuesday had the highest on-time rate: 83.3% of 36 flights. Friday was lowest at 69.4% across 36 flights.

DayFlightsOn time30+ minCancelled
Monday3582.9%14.3%0.0%
Tuesday3683.3%5.6%0.0%
Wednesday3672.2%13.9%2.8%
Thursday3680.6%11.1%2.8%
Friday3669.4%19.4%2.8%
Saturday3677.8%16.7%0.0%
Sunday3680.6%11.1%0.0%

Which airline was most reliable for SBP to SEA?

Only Alaska Airlines met the SBP-to-SEA airline threshold: 77.1% of 223 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Alaska Airlines22377.1%14.3%1.3%
SkyWest Airlines2885.7%3.6%0.0%

Which month was most reliable for SBP to SEA?

Among qualifying SBP-to-SEA month results, September 2025 had the highest on-time rate: 89.3% of 28 flights. December 2025 was lowest at 64.5% across 31 flights.

MonthFlightsOn time30+ minCancelled
July 20253171.0%25.8%0.0%
August 20253164.5%32.3%0.0%
September 20252889.3%3.6%3.6%
October 20253180.6%12.9%3.2%
November 20253086.7%6.7%0.0%
December 20253164.5%19.4%3.2%
April 20262185.7%0.0%0.0%
May 20261978.9%5.3%0.0%

What drove SBP to SEA delay minutes?

Late aircraft was the largest recorded SBP-to-SEA delay category, accounting for 57.6% of 3,068 BTS-attributed delay minutes during July 2025–June 2026.

Airline14.8%
Late aircraft57.6%
National airspace27.6%
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.