How far is Helena, MT, from Sacramento, CA?
The distance between Sacramento (Sacramento International Airport) and Helena (Helena Regional Airport) is 732 miles / 1179 kilometers / 636 nautical miles.
The driving distance from Sacramento (SMF) to Helena (HLN) is 1022 miles / 1644 kilometers, and travel time by car is about 17 hours 29 minutes.
Sacramento International Airport – Helena Regional Airport
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Distance from Sacramento to Helena
There are several ways to calculate the distance from Sacramento to Helena. Here are two standard methods:
Vincenty's formula (applied above)- 732.303 miles
- 1178.527 kilometers
- 636.354 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- 731.842 miles
- 1177.786 kilometers
- 635.954 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 Sacramento to Helena?
The estimated flight time from Sacramento International Airport to Helena Regional Airport is 1 hour and 53 minutes.
What is the time difference between Sacramento and Helena?
The time difference between Sacramento and Helena is 1 hour. Helena is 1 hour ahead of Sacramento.
Flight carbon footprint between Sacramento International Airport (SMF) and Helena Regional Airport (HLN)
On average, flying from Sacramento to Helena generates about 128 kg of CO2 per passenger, and 128 kilograms equals 282 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Sacramento to Helena
See the map of the shortest flight path between Sacramento International Airport (SMF) and Helena Regional Airport (HLN).
Airport information
| Origin | Sacramento International Airport |
|---|---|
| City: | Sacramento, CA |
| Country: | United States  |
| IATA Code: | SMF |
| ICAO Code: | KSMF |
| Coordinates: | 38°41′43″N, 121°35′27″W |
| 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 |