Air Miles Calculator

Distance between Helena, MT (HLN) and Salt Lake City, UT (SLC)

Flight distance from Helena to Salt Lake City (Helena Regional Airport – Salt Lake City International Airport) is 402 miles / 646 kilometers / 349 nautical miles. Estimated flight time is 1 hour 15 minutes.

Driving distance from Helena (HLN) to Salt Lake City (SLC) is 488 miles / 785 kilometers and travel time by car is about 8 hours 12 minutes.

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

Shortest flight path between Helena Regional Airport (HLN) and Salt Lake City International Airport (SLC).

How far is Salt Lake City from Helena?

There are several ways to calculate distances between Helena and Salt Lake City. 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).

Airport information


A 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

B Salt Lake City International Airport
City: Salt Lake City, UT
Country: United States Flag of United States
IATA Code: SLC
ICAO Code: KSLC
Coordinates: 40°47′18″N, 111°58′40″W

Time difference and current local times

There is no time difference between Helena and Salt Lake City.

Time Difference

Helena, MT

 MDT

Salt Lake City, UT

 MDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 84 kg (186 pounds).

Frequent Flyer Miles Calculator

Helena (HLN) → Salt Lake City (SLC).

Distance:
402
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
402

Round trip?