Cosmic radiation on flights from Narita (NRT)

Narita International Airport, Narita, Japan. ICAO RJAA, at 35.76°, 140.38°. FlightDose publishes 1 route from here and 1 to here, each direction on its own page.

The one published route from NRT goes to Los Angeles (NRT → LAX) and receives about 30.9 µSv for a standard flight. A route's dose depends mostly on its hours in the air and how far it runs from the equator (why latitude matters).

Updated

Routes from NRT

Routes to NRT

Standard flight: 35,000 ft, estimated time in the air, solar conditions of August 2026; CARI-7.

NRTLAX
Routes from NRT, shaded by modelled dose rate. Select a route to open its page.

Flying from Narita somewhere else?

The FlightDose app runs CARI-7 for any two airports, with your date, altitude and time in the air.

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