Distance From Nisenji Heliport to Ontario International Airport

The distance from Nisenji Heliport () to Ontario International Airport (ONT) is 5610 miles or 9029 kilometers or 4872 nautical miles.

The distance shown below is direct flight distance between airports. Straight-line distance does not account for the surface between the two points. It is the distance a bird or airplane would travel between the two points when flying above the surface. The straight line distance is the direct route between two points, regardless of whether or not there are roads that connect them.

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How long does it take to travel from Tenryu ( Japan ) to Ontario ( United States )?

A one-way nonstop (direct) flight between Tenryu and Ontario takes around 12 hours 53 minutes.

Estimated flight time from Nisenji Heliport, Tenryu, Japan to Ontario International Airport, Ontario, United States is 12 hours 53 minutes under avarage conditions. Your actual flying time may vary depending on wind direction/speed or weather conditions. This calculation does not include the departure and landing times of the aircraft. In addition, it does not cover the person identity check, ticket check-in and baggage collection times at the airport.

Travel Distance Between the Airports • - ONT

Kilometers		9029 km
Statute Miles		5610 miles
Nautical Miles		4872 nm
Avg. Time of Flight		12 hours 53 minutes

Nisenji Heliport to Ontario International Airport Flight Route Map - to ONT Flight Path

Location of Nisenji Heliport & Ontario International Airport is given below.
Click the map to view Tenryu to Ontario nonstop flight path and travel direction.

Click to see flight route on Google Map between Tenryu, Japan and Ontario, United States. .

Nonstop flight route between Tenryu, Japan and Ontario, United States.

Time Difference Between the Airports • - ONT

Time difference between Tenryu (Japan) and Ontario (United States) is 16 Hours.
Ontario time is 16 Hours behind Tenryu.

Location	Local Time
Tenryu (Japan)	2026-03-20, 21:45:11 JST
Ontario (United States)	2026-03-20, 05:45:11 PDT

Why should you arrive 3 hours before international flight? Flyers who are traveling to an international destination should arrive at the airport earlier than domestic flyers. This is because international flights can have additional check-in requirements, like passport verification, that need to be completed before you receive your boarding pass.

Origin

Nisenji Heliport ( / ) Tenryu, Japan

Destination

Ontario International Airport (ONT / KONT) Ontario, United States