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Route

KOA → PDX

Ellison Onizuka Kona International Airport at Keāhole Portland International Airport

How punctual is this route?

On-time arrivals
83.2%
Less than 15 minutes late
Cancelled
0.3%
Of scheduled flights
Average delay when late
54 min
Flights arriving 15+ minutes late
Flights tracked
365
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 56%
  • Airline (crew, maintenance, cleaning) 23%
  • Air traffic control & airport 16%
  • Extreme weather 4%
  • Security 0%

Share of delay minutes airlines attributed to each cause (BTS).

On-time arrivals by month
Sep 2025 Aug 2026
Show as table
MonthOn timeFlights
September 2025 76.7% 30
October 2025 67.7% 31
November 2025 80.0% 30
December 2025 80.6% 31
January 2026 83.9% 31
February 2026 89.3% 28
March 2026 71.0% 31
April 2026 86.7% 30
May 2026 90.3% 31
June 2026 90.0% 30
July 2026 93.5% 31
August 2026 90.0% 31

Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data

Airlines on this route

AirlineFlightsOn timeCancelledAvg. delay when late
Alaska Airlines 365 83.2% 0.3% 54 min

Delay odds by flight

How often each flight number arrived 15 or more minutes late over the last year.

  • AS253

    15% late · 294 flights

  • AS868

    27% late · 55 flights

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