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Airport Reliability

KOA · Kailua-Kona

Ellison Onizuka Kona International Airport

87%
Departures within 15 minutes
6 min
Average departure delay
84%
Arrivals within 15 minutes
1.2%
Departures cancelled

Based on 15,979 departures and 15,978 arrivals. Data through May 2026.

What the data says

Morning-you made the right choice.

Departures from KOA departing between 6–9 AM arrived on time 94% of the time, versus 79% between 12–3 PM.

Tuesday has been the better bet.

A small edge: 89% on time on Tuesdays against 83% on Fridays.

When KOA gets messy

On-time by departure window
  • 12–3 AM—(8 flights)
  • 6–9 AM94%(2371 flights)
  • 9 AM–12 PM88%(2924 flights)
  • 12–3 PM79%(3559 flights)
  • 3–6 PM82%(2468 flights)
  • 6–9 PM87%(2305 flights)
  • 9 PM–12 AM90%(2137 flights)
On-time by weekday
  • Mon87%(2299 flights)
  • Tue89%(2161 flights)
  • Wed88%(2175 flights)
  • Thu84%(2251 flights)
  • Fri83%(2274 flights)
  • Sat85%(2367 flights)
  • Sun87%(2245 flights)
On-time trend by month
86%
May

Jun 87% → May 86% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202587%1321
July 202587%1367
August 202591%1336
September 202594%1226
October 202587%1245
November 202589%1221
December 202581%1374
January 202683%1407
February 202686%1265
March 202678%1384
April 202686%1287
May 202686%1339

Airlines departing KOA

Busiest routes from KOA

Based on 15,979 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.