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

Historically, 80.4% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 1,304 flights.

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

When is this route most reliable?

The same route can behave differently through the day. These are scheduled departure windows, not actual departure times. Small time windows with fewer than 40 flights are withheld.

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%

Weekday comparison

Day-of-week results use at least 30 scheduled flights per row. Look for broad patterns, not tiny percentage differences.

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%

Airline comparison

Marketing-carrier results make codeshare flights easier to compare as travelers buy them. Dedicated route-airline reports require at least 160 flights.

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

Monthly trend

Month-by-month results show whether a twelve-month average hides an unusual period.

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 reported delay minutes?

BTS cause minutes are reported for qualifying delayed flights. These shares describe recorded delay minutes—not the chance that a particular cause will affect your next flight.

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.