Distance between Salt Lake City, UT (SLC) and Helena, MT (HLN)
Distance from Salt Lake City to Helena (Salt Lake City International Airport – Helena Regional Airport) is 402 miles / 646 kilometers / 349 nautical miles.
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Salt Lake City - Helena
How far is Helena from Salt Lake City?
There are several ways to calculate distances between Salt Lake City and Helena. Here are two common methods:
Vincenty's formula (applied above)- 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 – the shortest distance between two points).
Flight duration
Estimated flight time from Salt Lake City International Airport (SLC) to Helena Regional Airport (HLN) is 1 hour 15 minutes.
Time difference and current local times
There is no time difference between Salt Lake City and Helena.
Time Difference
Salt Lake City, UT
Helena, MT
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 84 kg (185 pounds).
Airport information
| A | Salt Lake City International Airport |
|---|---|
| City: | Salt Lake City, UT |
| Country: | United States  |
| IATA Code: | SLC |
| ICAO Code: | KSLC |
| Coordinates: | 40°47′18″N, 111°58′40″W |
| B | Helena Regional Airport |
|---|---|
| City: | Helena, MT |
| Country: | United States |
| IATA Code: | HLN |
| ICAO Code: | KHLN |
| Coordinates: | 46°36′24″N, 111°58′58″W |
Salt Lake City to Helena flight path
Shortest flight path between Salt Lake City International Airport (SLC) and Helena Regional Airport (HLN).
Frequent Flyer Miles Calculator
Salt Lake City (SLC) → Helena (HLN).
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