Distance From Nagano Matsushiro General Hospital Helipad to Ontario International Airport

The distance from Nagano Matsushiro General Hospital Helipad () to Ontario International Airport (ONT) is 5541 miles or 8917 kilometers or 4812 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 Nagano ( Japan ) to Ontario ( United States )?

A one-way nonstop (direct) flight between Nagano and Ontario takes around 12 hours 44 minutes.

Estimated flight time from Nagano Matsushiro General Hospital Helipad, Nagano, Japan to Ontario International Airport, Ontario, United States is 12 hours 44 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		8917 km
Statute Miles		5541 miles
Nautical Miles		4812 nm
Avg. Time of Flight		12 hours 44 minutes

Nagano Matsushiro General Hospital Helipad to Ontario International Airport Flight Route Map - to ONT Flight Path

Location of Nagano Matsushiro General Hospital Helipad & Ontario International Airport is given below.
Click the map to view Nagano to Ontario nonstop flight path and travel direction.

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

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

Time Difference Between the Airports • - ONT

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

Location	Local Time
Nagano (Japan)	2026-08-04, 15:21:52 JST
Ontario (United States)	2026-08-03, 23:21:52 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

Nagano Matsushiro General Hospital Helipad ( / ) Nagano, Japan

Destination

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