Distance From Ontario International Airport to Narita International Airport, ONT - NRT Distance

The distance from Ontario International Airport (ONT) to Narita International Airport (NRT) is 5472 miles or 8807 kilometers or 4752 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 Ontario ( United States ) to Narita ( Japan )?

A one-way nonstop (direct) flight between Ontario and Narita takes around 12 hours 34 minutes.

Estimated flight time from Ontario International Airport, Ontario, United States to Narita International Airport, Narita, Japan is 12 hours 34 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 - NRT

Kilometers		8807 km
Statute Miles		5472 miles
Nautical Miles		4752 nm
Avg. Time of Flight		12 hours 34 minutes

Ontario International Airport to Narita International Airport Flight Route Map - ONT to NRT Flight Path

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

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

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

Time Difference Between the Airports • ONT - NRT

Time difference between Ontario (United States) and Narita (Japan) is 17 Hours.
Narita time is 17 Hours ahead of Ontario.

Location	Local Time
Ontario (United States)	2025-12-04, 22:00:25 PST
Narita (Japan)	2025-12-05, 15:00:25 JST

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

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

Destination

Narita International Airport (NRT / RJAA) Narita, Japan