How far is Lopez, WA, from Helena, MT?

The distance between Helena (Helena Regional Airport) and Lopez (Lopez Island Airport) is 528 miles / 850 kilometers / 459 nautical miles.

The driving distance from Helena (HLN) to Lopez (LPS) is 685 miles / 1103 kilometers, and travel time by car is about 13 hours 21 minutes.

Distance from Helena to Lopez

There are several ways to calculate the distance from Helena to Lopez. Here are two standard methods:

Vincenty's formula (applied above)

• 528.071 miles
• 849.847 kilometers
• 458.881 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

• 526.616 miles
• 847.507 kilometers
• 457.617 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 Lopez?

The estimated flight time from Helena Regional Airport to Lopez Island Airport is 1 hour and 29 minutes.

What is the time difference between Helena and Lopez?

The time difference between Helena and Lopez is 1 hour. Lopez is 1 hour behind Helena.

Flight carbon footprint between Helena Regional Airport (HLN) and Lopez Island Airport (LPS)

On average, flying from Helena to Lopez generates about 103 kg of CO2 per passenger, and 103 kilograms equals 227 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 Lopez

See the map of the shortest flight path between Helena Regional Airport (HLN) and Lopez Island Airport (LPS).

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	Lopez Island Airport
City:	Lopez, WA
Country:	United States
IATA Code:	LPS
ICAO Code:	S31
Coordinates:	48°29′2″N, 122°56′16″W