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

Ketchikan, AK (KTN) to Seattle, WA (SEA) flight delay odds

80.4% of 1,304 official scheduled KTN-to-SEA flights arrived on time; 11.1% arrived at least 30 minutes late and 2.7% 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 SIGNALVariable
80.4%arrived on time
11.1%30+ min late
2.7%cancelled
1,304scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late5.8%all scheduled flights
120+ minutes late2.6%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+0.8 mincompleted flights

Which departure time was most reliable for KTN to SEA?

Among qualifying KTN-to-SEA departure window results, Early morning had the highest on-time rate: 87.5% of 48 flights. Late morning was lowest at 77.8% across 409 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning4887.5%8.3%2.1%
Late morning40977.8%13.7%2.0%
Afternoon48581.2%10.5%2.5%
Evening36281.2%9.4%3.9%

Which weekday was most reliable for KTN to SEA?

Among qualifying KTN-to-SEA weekday results, Thursday had the highest on-time rate: 84.5% of 181 flights. Monday was lowest at 73.7% across 186 flights.

DayFlightsOn time30+ minCancelled
Monday18673.7%14.5%1.6%
Tuesday19184.3%7.9%4.2%
Wednesday18784.5%11.8%0.0%
Thursday18184.5%7.7%2.2%
Friday18779.7%13.4%1.6%
Saturday18678.0%12.4%3.2%
Sunday18678.0%10.2%5.9%

Which airline was most reliable for KTN to SEA?

Only Alaska Airlines met the KTN-to-SEA airline threshold: 80.4% of 1,304 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Alaska Airlines1,30480.4%11.1%2.7%

Which month was most reliable for KTN to SEA?

Among qualifying KTN-to-SEA month results, May 2026 had the highest on-time rate: 96.4% of 112 flights. January 2026 was lowest at 67.0% across 91 flights.

MonthFlightsOn time30+ minCancelled
July 202515573.5%17.4%1.3%
August 202514369.9%14.7%0.7%
September 202512083.3%11.7%1.7%
October 20259692.7%5.2%1.0%
November 20258883.0%5.7%5.7%
December 20259168.1%20.9%5.5%
January 20269167.0%11.0%13.2%
February 20268479.8%6.0%6.0%
March 20269372.0%21.5%2.2%
April 20269091.1%6.7%0.0%
May 202611296.4%3.6%0.0%
June 202614188.7%6.4%0.0%

What drove KTN to SEA delay minutes?

Late aircraft was the largest recorded KTN-to-SEA delay category, accounting for 68.0% of 15,768 BTS-attributed delay minutes during July 2025–June 2026.

Airline21.1%
Late aircraft68.0%
National airspace7.8%
Weather1.6%
Security1.5%
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.