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

76.2% of 365 official scheduled KOA-to-PDX flights arrived on time; 13.7% arrived at least 30 minutes late and 0.0% 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 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

Which departure time was most reliable for KOA to PDX?

Among qualifying KOA-to-PDX departure window results, Late morning had the highest on-time rate: 85.9% of 128 flights. Afternoon was lowest at 70.9% across 237 flights.

Departure windowFlightsOn time30+ minCancelled
Late morning12885.9%9.4%0.0%
Afternoon23770.9%16.0%0.0%

Which weekday was most reliable for KOA to PDX?

Among qualifying KOA-to-PDX weekday results, Tuesday had the highest on-time rate: 88.7% of 53 flights. Sunday was lowest at 69.2% across 52 flights.

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%

Which airline was most reliable for KOA to PDX?

Only Alaska Airlines met the KOA-to-PDX airline threshold: 76.2% of 365 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Alaska Airlines36576.2%13.7%0.0%

Which month was most reliable for KOA to PDX?

Among qualifying KOA-to-PDX month results, May 2026 had the highest on-time rate: 90.3% of 31 flights. July 2025 was lowest at 38.7% across 31 flights.

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 KOA to PDX delay minutes?

Late aircraft was the largest recorded KOA-to-PDX delay category, accounting for 62.9% of 4,306 BTS-attributed delay minutes during July 2025–June 2026.

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.