Air Miles Calculator

Distance between Lewiston, ID (LWS) and Helena, MT (HLN)

Flight distance from Lewiston to Helena (Lewiston–Nez Perce County Airport – Helena Regional Airport) is 241 miles / 387 kilometers / 209 nautical miles. Estimated flight time is 57 minutes.

Driving distance from Lewiston (LWS) to Helena (HLN) is 335 miles / 539 kilometers and travel time by car is about 7 hours 0 minutes.

Map of flight path and driving directions from Lewiston to Helena.

Shortest flight path between Lewiston–Nez Perce County Airport (LWS) and Helena Regional Airport (HLN).

How far is Helena from Lewiston?

There are several ways to calculate distances between Lewiston and Helena. Here are two common 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 earth.

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).

Airport information


A Lewiston–Nez Perce County Airport
City: Lewiston, ID
Country: United States Flag of United States
IATA Code: LWS
ICAO Code: KLWS
Coordinates: 46°22′28″N, 117°0′53″W

B Helena Regional Airport
City: Helena, MT
Country: United States Flag of United States
IATA Code: HLN
ICAO Code: KHLN
Coordinates: 46°36′24″N, 111°58′58″W

Time difference and current local times

The time difference between Lewiston and Helena is 1 hour. Helena is 1 hour ahead of Lewiston.

Time Difference

Lewiston, ID

 PST

Helena, MT

 MST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 60 kg (133 pounds).

Frequent Flyer Miles Calculator

Lewiston (LWS) → Helena (HLN).

Distance:
241
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
241

Round trip?