How far is Helena, MT, from Tokyo?

The distance between Tokyo (Narita International Airport) and Helena (Helena Regional Airport) is 5207 miles / 8380 kilometers / 4525 nautical miles.

Distance from Tokyo to Helena

There are several ways to calculate the distance from Tokyo to Helena. Here are two standard methods:

Vincenty's formula (applied above)

• 5206.797 miles
• 8379.528 kilometers
• 4524.583 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.

Haversine formula

• 5194.143 miles
• 8359.162 kilometers
• 4513.587 nautical miles

The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).

How long does it take to fly from Tokyo to Helena?

The estimated flight time from Narita International Airport to Helena Regional Airport is 10 hours and 21 minutes.

What is the time difference between Tokyo and Helena?

The time difference between Tokyo and Helena is 16 hours. Helena is 16 hours behind Tokyo.

Flight carbon footprint between Narita International Airport (NRT) and Helena Regional Airport (HLN)

On average, flying from Tokyo to Helena generates about 611 kg of CO2 per passenger, and 611 kilograms equals 1 347 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Tokyo to Helena

See the map of the shortest flight path between Narita International Airport (NRT) and Helena Regional Airport (HLN).

Airport information

Origin	Narita International Airport
City:	Tokyo
Country:	Japan
IATA Code:	NRT
ICAO Code:	RJAA
Coordinates:	35°45′52″N, 140°23′9″E

Destination	Helena Regional Airport
City:	Helena, MT
Country:	United States
IATA Code:	HLN
ICAO Code:	KHLN
Coordinates:	46°36′24″N, 111°58′58″W