Air Miles Calculator

Distance between Sioux City, IA (SUX) and Helena, MT (HLN)

Flight distance from Sioux City to Helena (Sioux Gateway Airport – Helena Regional Airport) is 822 miles / 1323 kilometers / 714 nautical miles. Estimated flight time is 2 hours 3 minutes.

Driving distance from Sioux City (SUX) to Helena (HLN) is 1044 miles / 1680 kilometers and travel time by car is about 16 hours 40 minutes.

Map of flight path and driving directions from Sioux City to Helena.

Shortest flight path between Sioux Gateway Airport (SUX) and Helena Regional Airport (HLN).

How far is Helena from Sioux City?

There are several ways to calculate distances between Sioux City and Helena. Here are two common methods:

Vincenty's formula (applied above)
  • 821.902 miles
  • 1322.723 kilometers
  • 714.213 nautical miles

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

Haversine formula
  • 819.984 miles
  • 1319.637 kilometers
  • 712.547 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).

Airport information


A Sioux Gateway Airport
City: Sioux City, IA
Country: United States Flag of United States
IATA Code: SUX
ICAO Code: KSUX
Coordinates: 42°24′9″N, 96°23′3″W

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

Time difference and current local times

The time difference between Sioux City and Helena is 1 hour. Helena is 1 hour behind Sioux City.

Time Difference

Sioux City, IA

 CST

Helena, MT

 MST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 137 kg (302 pounds).

Frequent Flyer Miles Calculator

Sioux City (SUX) → Helena (HLN).

Distance:
822
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
822

Round trip?