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ONT to OIR: distance & flight time

Ontario (Ontario International Airport) → Okushiri (Okushiri Airport)

5,270 mi
8,481 km · 4,580 nm
10h 48m
estimated nonstop flight time
+16h
time difference · heading northwest
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Flight time details

5,270 miles nonstop takes roughly 10h 48m 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.

Alternate airports can cut this fare

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Frequently asked questions

How far is ONT from OIR?

The flight distance from Ontario (ONT) to Okushiri (OIR) is 5,270 miles (8,481 km, 4,580 nautical miles), measured along the great-circle route airlines actually fly.

How long is the flight from ONT to OIR?

A nonstop flight takes about 10h 48m 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 Okushiri?

Okushiri is 16 hours ahead of Ontario.

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

Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ONT–OIR that never appear on search engines, with no booking fees.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