Calculations with different methods
- 401.693 miles
- 646.462 kilometers
- 349.061 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
- 402.013 miles
- 646.978 kilometers
- 349.340 nautical miles
The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance).
Estimated flight time from Helena Regional Airport (HLN) to Salt Lake City International Airport (SLC) is 1 hour 15 minutes.
Time difference and current local times
There is no time difference between Helena and Salt Lake City.
Salt Lake City, UT
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 80 kg (177 pounds).
Helena to Salt Lake City flight map.
Frequent Flyer Miles Calculator
Helena (HLN) → Salt Lake City (SLC).