How far is Grand Forks, ND, from Helena, MT?
The distance between Helena (Helena Regional Airport) and Grand Forks (Grand Forks International Airport) is 701 miles / 1128 kilometers / 609 nautical miles.
The driving distance from Helena (HLN) to Grand Forks (GFK) is 877 miles / 1411 kilometers, and travel time by car is about 15 hours 45 minutes.
Helena Regional Airport – Grand Forks International Airport
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Distance from Helena to Grand Forks
There are several ways to calculate the distance from Helena to Grand Forks. Here are two standard methods:
Vincenty's formula (applied above)- 701.161 miles
- 1128.409 kilometers
- 609.292 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- 699.149 miles
- 1125.171 kilometers
- 607.544 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 Grand Forks?
The estimated flight time from Helena Regional Airport to Grand Forks International Airport is 1 hour and 49 minutes.
What is the time difference between Helena and Grand Forks?
The time difference between Helena and Grand Forks is 1 hour. Grand Forks is 1 hour ahead of Helena.
Flight carbon footprint between Helena Regional Airport (HLN) and Grand Forks International Airport (GFK)
On average, flying from Helena to Grand Forks generates about 125 kg of CO2 per passenger, and 125 kilograms equals 275 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 Grand Forks
See the map of the shortest flight path between Helena Regional Airport (HLN) and Grand Forks International Airport (GFK).
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 | Grand Forks International Airport |
|---|---|
| City: | Grand Forks, ND |
| Country: | United States |
| IATA Code: | GFK |
| ICAO Code: | KGFK |
| Coordinates: | 47°56′57″N, 97°10′33″W |