How far is Las Vegas, NV, from Helena, MT?
The distance between Helena (Helena Regional Airport) and Las Vegas (Las Vegas Harry Reid International Airport) is 745 miles / 1199 kilometers / 647 nautical miles.
The driving distance from Helena (HLN) to Las Vegas (LAS) is 910 miles / 1465 kilometers, and travel time by car is about 14 hours 58 minutes.
Helena Regional Airport – Las Vegas Harry Reid International Airport
Search flights
Distance from Helena to Las Vegas
There are several ways to calculate the distance from Helena to Las Vegas. Here are two standard methods:
Vincenty's formula (applied above)- 744.736 miles
- 1198.537 kilometers
- 647.158 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- 745.499 miles
- 1199.764 kilometers
- 647.821 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 Las Vegas?
The estimated flight time from Helena Regional Airport to Las Vegas Harry Reid International Airport is 1 hour and 54 minutes.
What is the time difference between Helena and Las Vegas?
The time difference between Helena and Las Vegas is 1 hour. Las Vegas is 1 hour behind Helena.
Flight carbon footprint between Helena Regional Airport (HLN) and Las Vegas Harry Reid International Airport (LAS)
On average, flying from Helena to Las Vegas generates about 129 kg of CO2 per passenger, and 129 kilograms equals 285 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 Las Vegas
See the map of the shortest flight path between Helena Regional Airport (HLN) and Las Vegas Harry Reid International Airport (LAS).
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 | Las Vegas Harry Reid International Airport |
|---|---|
| City: | Las Vegas, NV |
| Country: | United States |
| IATA Code: | LAS |
| ICAO Code: | KLAS |
| Coordinates: | 36°4′48″N, 115°9′7″W |