How far is Harlingen, TX, from Helena, MT?
The distance between Helena (Helena Regional Airport) and Harlingen (Valley International Airport) is 1610 miles / 2592 kilometers / 1399 nautical miles.
The driving distance from Helena (HLN) to Harlingen (HRL) is 1975 miles / 3178 kilometers, and travel time by car is about 35 hours 2 minutes.
Helena Regional Airport – Valley International Airport
Search flights
Distance from Helena to Harlingen
There are several ways to calculate the distance from Helena to Harlingen. Here are two standard methods:
Vincenty's formula (applied above)- 1610.298 miles
- 2591.524 kilometers
- 1399.311 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- 1611.908 miles
- 2594.114 kilometers
- 1400.710 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 Harlingen?
The estimated flight time from Helena Regional Airport to Valley International Airport is 3 hours and 32 minutes.
What is the time difference between Helena and Harlingen?
The time difference between Helena and Harlingen is 1 hour. Harlingen is 1 hour ahead of Helena.
Flight carbon footprint between Helena Regional Airport (HLN) and Valley International Airport (HRL)
On average, flying from Helena to Harlingen generates about 187 kg of CO2 per passenger, and 187 kilograms equals 411 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 Harlingen
See the map of the shortest flight path between Helena Regional Airport (HLN) and Valley International Airport (HRL).
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 | Valley International Airport |
|---|---|
| City: | Harlingen, TX |
| Country: | United States |
| IATA Code: | HRL |
| ICAO Code: | KHRL |
| Coordinates: | 26°13′42″N, 97°39′15″W |