How far is Monroe, LA, from Helena, MT?
The distance between Helena (Helena Regional Airport) and Monroe (Monroe Regional Airport) is 1435 miles / 2309 kilometers / 1247 nautical miles.
The driving distance from Helena (HLN) to Monroe (MLU) is 1923 miles / 3094 kilometers, and travel time by car is about 33 hours 18 minutes.
Helena Regional Airport – Monroe Regional Airport
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Distance from Helena to Monroe
There are several ways to calculate the distance from Helena to Monroe. Here are two standard methods:
Vincenty's formula (applied above)- 1434.548 miles
- 2308.682 kilometers
- 1246.588 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- 1433.637 miles
- 2307.215 kilometers
- 1245.796 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 Monroe?
The estimated flight time from Helena Regional Airport to Monroe Regional Airport is 3 hours and 12 minutes.
What is the time difference between Helena and Monroe?
The time difference between Helena and Monroe is 1 hour. Monroe is 1 hour ahead of Helena.
Flight carbon footprint between Helena Regional Airport (HLN) and Monroe Regional Airport (MLU)
On average, flying from Helena to Monroe generates about 175 kg of CO2 per passenger, and 175 kilograms equals 387 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 Monroe
See the map of the shortest flight path between Helena Regional Airport (HLN) and Monroe Regional Airport (MLU).
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 | Monroe Regional Airport |
|---|---|
| City: | Monroe, LA |
| Country: | United States |
| IATA Code: | MLU |
| ICAO Code: | KMLU |
| Coordinates: | 32°30′39″N, 92°2′15″W |