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

Kona, HI (KOA) to Portland, OR (PDX) flight delay odds

Historically, 76.2% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 365 flights.

HISTORICAL ROUTE SIGNALGenerally reliable
76.2%arrived on time
13.7%30+ min late
0.0%cancelled
365scheduled 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 late1.6%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+3.1 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
Late morning12885.9%9.4%0.0%
Afternoon23770.9%16.0%0.0%

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
Monday5269.2%13.5%0.0%
Tuesday5388.7%5.7%0.0%
Wednesday5275.0%13.5%0.0%
Thursday5273.1%13.5%0.0%
Friday5278.8%15.4%0.0%
Saturday5278.8%13.5%0.0%
Sunday5269.2%21.2%0.0%

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 Airlines36576.2%13.7%0.0%

Monthly trend

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

MonthFlightsOn time30+ minCancelled
July 20253138.7%35.5%0.0%
August 20253161.3%25.8%0.0%
September 20253076.7%10.0%0.0%
October 20253167.7%19.4%0.0%
November 20253080.0%16.7%0.0%
December 20253180.6%9.7%0.0%
January 20263183.9%6.5%0.0%
February 20262889.3%10.7%0.0%
March 20263171.0%9.7%0.0%
April 20263086.7%10.0%0.0%
May 20263190.3%3.2%0.0%
June 20263090.0%6.7%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.

Airline19.2%
Late aircraft62.9%
National airspace15.0%
Weather2.0%
Security0.9%
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.