How far is Lewiston, ID, from Helena, MT?
The distance between Helena (Helena Regional Airport) and Lewiston (Lewiston–Nez Perce County Airport) is 241 miles / 387 kilometers / 209 nautical miles.
The driving distance from Helena (HLN) to Lewiston (LWS) is 399 miles / 642 kilometers, and travel time by car is about 7 hours 27 minutes.
Helena Regional Airport – Lewiston–Nez Perce County Airport
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Distance from Helena to Lewiston
There are several ways to calculate the distance from Helena to Lewiston. Here are two standard methods:
Vincenty's formula (applied above)- 240.552 miles
- 387.131 kilometers
- 209.034 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- 239.863 miles
- 386.023 kilometers
- 208.435 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 Lewiston?
The estimated flight time from Helena Regional Airport to Lewiston–Nez Perce County Airport is 57 minutes.
What is the time difference between Helena and Lewiston?
The time difference between Helena and Lewiston is 1 hour. Lewiston is 1 hour behind Helena.
Flight carbon footprint between Helena Regional Airport (HLN) and Lewiston–Nez Perce County Airport (LWS)
On average, flying from Helena to Lewiston generates about 60 kg of CO2 per passenger, and 60 kilograms equals 133 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 Lewiston
See the map of the shortest flight path between Helena Regional Airport (HLN) and Lewiston–Nez Perce County Airport (LWS).
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 | Lewiston–Nez Perce County Airport |
|---|---|
| City: | Lewiston, ID |
| Country: | United States |
| IATA Code: | LWS |
| ICAO Code: | KLWS |
| Coordinates: | 46°22′28″N, 117°0′53″W |