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ONT to KMJ: distance & flight time

Ontario (Ontario International Airport) → Kumamoto (Kumamoto Airport)

6,028 mi
9,701 km · 5,238 nm
12h 17m
estimated nonstop flight time
+16h
time difference · heading northwest
See live ONT→KMJ fares Phone-only fares on this route — call free

Flight time details

6,028 miles nonstop takes roughly 12h 17m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 16-hour time gain when reading arrival times on your ticket.

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The two airports

Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.

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Frequently asked questions

How far is ONT from KMJ?

The flight distance from Ontario (ONT) to Kumamoto (KMJ) is 6,028 miles (9,701 km, 5,238 nautical miles), measured along the great-circle route airlines actually fly.

How long is the flight from ONT to KMJ?

A nonstop flight takes about 12h 17m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.

What is the time difference between Ontario and Kumamoto?

Kumamoto is 16 hours ahead of Ontario.

What is the cheapest way to fly from ONT to KMJ?

Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ONT–KMJ that never appear on search engines, with no booking fees.
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