How far is Laredo, TX, from Helena, MT?
The distance between Helena (Helena Regional Airport) and Laredo (Laredo International Airport) is 1481 miles / 2384 kilometers / 1287 nautical miles.
The driving distance from Helena (HLN) to Laredo (LRD) is 1862 miles / 2997 kilometers, and travel time by car is about 32 hours 42 minutes.
Helena Regional Airport – Laredo International Airport
Search flights
Distance from Helena to Laredo
There are several ways to calculate the distance from Helena to Laredo. Here are two standard methods:
Vincenty's formula (applied above)- 1481.246 miles
- 2383.835 kilometers
- 1287.168 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- 1482.760 miles
- 2386.271 kilometers
- 1288.483 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 Laredo?
The estimated flight time from Helena Regional Airport to Laredo International Airport is 3 hours and 18 minutes.
What is the time difference between Helena and Laredo?
The time difference between Helena and Laredo is 1 hour. Laredo is 1 hour ahead of Helena.
Flight carbon footprint between Helena Regional Airport (HLN) and Laredo International Airport (LRD)
On average, flying from Helena to Laredo generates about 178 kg of CO2 per passenger, and 178 kilograms equals 393 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 Laredo
See the map of the shortest flight path between Helena Regional Airport (HLN) and Laredo International Airport (LRD).
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 | Laredo International Airport |
|---|---|
| City: | Laredo, TX |
| Country: | United States |
| IATA Code: | LRD |
| ICAO Code: | KLRD |
| Coordinates: | 27°32′37″N, 99°27′41″W |