How far is Helena, MT, from Sanya?

The distance between Sanya (Sanya Phoenix International Airport) and Helena (Helena Regional Airport) is 7275 miles / 11708 kilometers / 6322 nautical miles.

Distance from Sanya to Helena

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

Vincenty's formula (applied above)

• 7275.309 miles
• 11708.475 kilometers
• 6322.071 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

• 7264.139 miles
• 11690.498 kilometers
• 6312.364 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 Sanya to Helena?

The estimated flight time from Sanya Phoenix International Airport to Helena Regional Airport is 14 hours and 16 minutes.

What is the time difference between Sanya and Helena?

The time difference between Sanya and Helena is 15 hours. Helena is 15 hours behind Sanya.

Flight carbon footprint between Sanya Phoenix International Airport (SYX) and Helena Regional Airport (HLN)

On average, flying from Sanya to Helena generates about 894 kg of CO2 per passenger, and 894 kilograms equals 1 971 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Sanya to Helena

See the map of the shortest flight path between Sanya Phoenix International Airport (SYX) and Helena Regional Airport (HLN).

Airport information

Origin	Sanya Phoenix International Airport
City:	Sanya
Country:	China
IATA Code:	SYX
ICAO Code:	ZJSY
Coordinates:	18°18′10″N, 109°24′43″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