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Route

Ontario → Kailua

ONTOntarioOntario International Airport
KOAKailuaEllison Onizuka Kona International Airport at Keāhole
Distance
2,548 mi
Estimated flight time
~5h 40m

Kailua is currently 3 hours behind Ontario.

No nonstop connection observed

View the reverse route

Our route data contains no observed nonstop flight from Ontario to Kailua. That does not rule out a one-stop journey; see the direct destinations of Ontario for the options.

About this route

  • Intercontinental: this route connects two continents.
  • Direct destinations observed from Ontario: 63.
  • Direct destinations observed from Kailua: 16.

The airports on this route

Ontario International Airport

Ontario, United StatesONT / KONT

Major airport · 63 direct destinations · 2 runways · longest runway 12,198 ft

91 °F · CloudySource: METAR observation via the NOAA Aviation Weather Center

Airport pageAll direct destinations

Ellison Onizuka Kona International Airport at Keāhole

Kailua, United StatesKOA / PHKO

Regional airport · 16 direct destinations · 1 runway · longest runway 11,001 ft

85 °F · ClearSource: METAR observation via the NOAA Aviation Weather Center

Airport pageAll direct destinations

About the route from Ontario to Kailua

The distance between Ontario International Airport (ONT) and Ellison Onizuka Kona International Airport at Keāhole (KOA) is approximately 2,548 mi; no direct connection has been observed in our route data.

Frequently asked questions about this route

How far is Ontario from Kailua by air?
The great-circle distance between Ontario International Airport and Ellison Onizuka Kona International Airport at Keāhole is approximately 2,548 mi.
Is there a direct connection from Ontario to Kailua?
No direct connection between ONT and KOA has been observed in our route data. That does not rule out a one-stop journey.
What is the current time difference between Ontario and Kailua?
Kailua is currently 3 hours behind Ontario.

Where this data comes from

The route data comes from the flight archive (ADS-B, adsb.lol): which connections actually flew over the last twelve full months and who flew them, combined with our own airport, runway, and airline datasets. It is reference data about observed routes - not a current timetable and no claim about bookability.

The flight archive of the last twelve months has nothing for this route, so we say nothing about frequency.

Route data updated on October 11, 2026.