How far is Helena, MT, from Tehran?

The distance between Tehran (Tehran Imam Khomeini International Airport) and Helena (Helena Regional Airport) is 6689 miles / 10765 kilometers / 5813 nautical miles.

Distance from Tehran to Helena

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

Vincenty's formula (applied above)

• 6688.923 miles
• 10764.778 kilometers
• 5812.515 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

• 6673.471 miles
• 10739.910 kilometers
• 5799.088 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 Tehran to Helena?

The estimated flight time from Tehran Imam Khomeini International Airport to Helena Regional Airport is 13 hours and 9 minutes.

What is the time difference between Tehran and Helena?

The time difference between Tehran and Helena is 10 hours 30 minutes. Helena is 10 hours 30 minutes behind Tehran.

Flight carbon footprint between Tehran Imam Khomeini International Airport (IKA) and Helena Regional Airport (HLN)

On average, flying from Tehran to Helena generates about 811 kg of CO2 per passenger, and 811 kilograms equals 1 789 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Tehran to Helena

See the map of the shortest flight path between Tehran Imam Khomeini International Airport (IKA) and Helena Regional Airport (HLN).

Airport information

Origin	Tehran Imam Khomeini International Airport
City:	Tehran
Country:	Iran
IATA Code:	IKA
ICAO Code:	OIIE
Coordinates:	35°24′57″N, 51°9′7″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