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

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

64.6% of 243 official scheduled SEA-to-SIT flights arrived on time; 22.6% arrived at least 30 minutes late and 0.4% 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 SIGNALVariable
64.6%arrived on time
22.6%30+ min late
0.4%cancelled
243scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late9.1%all scheduled flights
120+ minutes late1.6%all scheduled flights
Diverted0.8%did not reach as scheduled
Average arrival+12.0 mincompleted flights

Which departure time was most reliable for SEA to SIT?

Among qualifying SEA-to-SIT departure window results, Night had the highest on-time rate: 65.7% of 99 flights. Late morning was lowest at 63.9% across 144 flights.

Departure windowFlightsOn time30+ minCancelled
Late morning14463.9%21.5%0.0%
Night9965.7%24.2%1.0%

Which weekday was most reliable for SEA to SIT?

Among qualifying SEA-to-SIT weekday results, Saturday had the highest on-time rate: 76.5% of 34 flights. Friday was lowest at 54.3% across 35 flights.

DayFlightsOn time30+ minCancelled
Monday3458.8%20.6%0.0%
Tuesday3675.0%13.9%0.0%
Wednesday3574.3%20.0%0.0%
Thursday3554.3%25.7%0.0%
Friday3554.3%37.1%0.0%
Saturday3476.5%17.6%0.0%
Sunday3458.8%23.5%2.9%

Which airline was most reliable for SEA to SIT?

Only Alaska Airlines met the SEA-to-SIT airline threshold: 64.6% of 243 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Alaska Airlines24364.6%22.6%0.4%

Which month was most reliable for SEA to SIT?

Among qualifying SEA-to-SIT month results, May 2026 had the highest on-time rate: 82.1% of 39 flights. July 2025 was lowest at 50.0% across 62 flights.

MonthFlightsOn time30+ minCancelled
July 20256250.0%30.6%1.6%
August 20254959.2%28.6%0.0%
September 20253080.0%13.3%0.0%
May 20263982.1%7.7%0.0%
June 20266065.0%23.3%0.0%

What drove SEA to SIT delay minutes?

Late aircraft was the largest recorded SEA-to-SIT delay category, accounting for 45.8% of 4,196 BTS-attributed delay minutes during July 2025–June 2026.

Airline33.9%
Late aircraft45.8%
National airspace19.3%
Weather0.0%
Security1.1%
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.