How far is Santa Maria, CA, from Helena, MT?
The distance between Helena (Helena Regional Airport) and Santa Maria (Santa Maria Public Airport) is 921 miles / 1482 kilometers / 800 nautical miles.
The driving distance from Helena (HLN) to Santa Maria (SMX) is 1303 miles / 2097 kilometers, and travel time by car is about 22 hours 42 minutes.
Helena Regional Airport – Santa Maria Public Airport
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Distance from Helena to Santa Maria
There are several ways to calculate the distance from Helena to Santa Maria. Here are two standard methods:
Vincenty's formula (applied above)- 920.878 miles
- 1482.009 kilometers
- 800.221 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- 921.269 miles
- 1482.638 kilometers
- 800.561 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 Helena to Santa Maria?
The estimated flight time from Helena Regional Airport to Santa Maria Public Airport is 2 hours and 14 minutes.
What is the time difference between Helena and Santa Maria?
The time difference between Helena and Santa Maria is 1 hour. Santa Maria is 1 hour behind Helena.
Flight carbon footprint between Helena Regional Airport (HLN) and Santa Maria Public Airport (SMX)
On average, flying from Helena to Santa Maria generates about 145 kg of CO2 per passenger, and 145 kilograms equals 320 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Helena to Santa Maria
See the map of the shortest flight path between Helena Regional Airport (HLN) and Santa Maria Public Airport (SMX).
Airport information
| Origin | Helena Regional Airport |
|---|---|
| City: | Helena, MT |
| Country: | United States  |
| IATA Code: | HLN |
| ICAO Code: | KHLN |
| Coordinates: | 46°36′24″N, 111°58′58″W |
| Destination | Santa Maria Public Airport |
|---|---|
| City: | Santa Maria, CA |
| Country: | United States |
| IATA Code: | SMX |
| ICAO Code: | KSMX |
| Coordinates: | 34°53′56″N, 120°27′25″W |