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

Sitka, AK (SIT) to Seattle, WA (SEA) flight delay odds

67.6% of 244 official scheduled SIT-to-SEA flights arrived on time; 16.0% 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 SIGNALVariable
67.6%arrived on time
16.0%30+ min late
1.2%cancelled
244scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late8.2%all scheduled flights
120+ minutes late1.2%all scheduled flights
Diverted0.8%did not reach as scheduled
Average arrival+11.5 mincompleted flights

Which departure time was most reliable for SIT to SEA?

Among qualifying SIT-to-SEA departure window results, Early morning had the highest on-time rate: 79.8% of 99 flights. Afternoon was lowest at 59.7% across 144 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning9979.8%7.1%2.0%
Afternoon14459.7%21.5%0.7%

Which weekday was most reliable for SIT to SEA?

Among qualifying SIT-to-SEA weekday results, Saturday had the highest on-time rate: 88.2% of 34 flights. Friday was lowest at 54.3% across 35 flights.

DayFlightsOn time30+ minCancelled
Monday3458.8%8.8%8.8%
Tuesday3666.7%16.7%0.0%
Wednesday3565.7%11.4%0.0%
Thursday3574.3%11.4%0.0%
Friday3554.3%28.6%0.0%
Saturday3488.2%11.8%0.0%
Sunday3565.7%22.9%0.0%

Which airline was most reliable for SIT to SEA?

Only Alaska Airlines met the SIT-to-SEA airline threshold: 67.6% of 244 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Alaska Airlines24467.6%16.0%1.2%

Which month was most reliable for SIT to SEA?

Among qualifying SIT-to-SEA month results, May 2026 had the highest on-time rate: 89.5% of 38 flights. August 2025 was lowest at 44.0% across 50 flights.

MonthFlightsOn time30+ minCancelled
July 20256259.7%19.4%1.6%
August 20255044.0%36.0%0.0%
September 20253066.7%13.3%0.0%
May 20263889.5%0.0%0.0%
June 20266083.3%6.7%3.3%

What drove SIT to SEA delay minutes?

Late aircraft was the largest recorded SIT-to-SEA delay category, accounting for 43.7% of 3,731 BTS-attributed delay minutes during July 2025–June 2026.

Airline29.0%
Late aircraft43.7%
National airspace15.6%
Weather0.8%
Security10.9%
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.