How far is Eau Claire, WI, from Helena, MT?
The distance between Helena (Helena Regional Airport) and Eau Claire (Chippewa Valley Regional Airport) is 996 miles / 1603 kilometers / 865 nautical miles.
The driving distance from Helena (HLN) to Eau Claire (EAU) is 1150 miles / 1850 kilometers, and travel time by car is about 20 hours 28 minutes.
Helena Regional Airport – Chippewa Valley Regional Airport
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Distance from Helena to Eau Claire
There are several ways to calculate the distance from Helena to Eau Claire. Here are two standard methods:
Vincenty's formula (applied above)- 995.751 miles
- 1602.506 kilometers
- 865.284 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- 992.977 miles
- 1598.042 kilometers
- 862.874 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 Eau Claire?
The estimated flight time from Helena Regional Airport to Chippewa Valley Regional Airport is 2 hours and 23 minutes.
What is the time difference between Helena and Eau Claire?
The time difference between Helena and Eau Claire is 1 hour. Eau Claire is 1 hour ahead of Helena.
Flight carbon footprint between Helena Regional Airport (HLN) and Chippewa Valley Regional Airport (EAU)
On average, flying from Helena to Eau Claire generates about 151 kg of CO2 per passenger, and 151 kilograms equals 332 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 Eau Claire
See the map of the shortest flight path between Helena Regional Airport (HLN) and Chippewa Valley Regional Airport (EAU).
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 | Chippewa Valley Regional Airport |
|---|---|
| City: | Eau Claire, WI |
| Country: | United States |
| IATA Code: | EAU |
| ICAO Code: | KEAU |
| Coordinates: | 44°51′56″N, 91°29′3″W |