How far is Helena, MT, from Reading, PA?
The distance between Reading (Reading Regional Airport) and Helena (Helena Regional Airport) is 1843 miles / 2967 kilometers / 1602 nautical miles.
The driving distance from Reading (RDG) to Helena (HLN) is 2182 miles / 3512 kilometers, and travel time by car is about 39 hours 20 minutes.
Reading Regional Airport – Helena Regional Airport
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Distance from Reading to Helena
There are several ways to calculate the distance from Reading to Helena. Here are two standard methods:
Vincenty's formula (applied above)- 1843.410 miles
- 2966.680 kilometers
- 1601.879 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- 1838.789 miles
- 2959.244 kilometers
- 1597.864 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 Reading to Helena?
The estimated flight time from Reading Regional Airport to Helena Regional Airport is 3 hours and 59 minutes.
What is the time difference between Reading and Helena?
The time difference between Reading and Helena is 2 hours. Helena is 2 hours behind Reading.
Flight carbon footprint between Reading Regional Airport (RDG) and Helena Regional Airport (HLN)
On average, flying from Reading to Helena generates about 204 kg of CO2 per passenger, and 204 kilograms equals 449 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Reading to Helena
See the map of the shortest flight path between Reading Regional Airport (RDG) and Helena Regional Airport (HLN).
Airport information
| Origin | Reading Regional Airport |
|---|---|
| City: | Reading, PA |
| Country: | United States  |
| IATA Code: | RDG |
| ICAO Code: | KRDG |
| Coordinates: | 40°22′42″N, 75°57′54″W |
| Destination | Helena Regional Airport |
|---|---|
| City: | Helena, MT |
| Country: | United States |
| IATA Code: | HLN |
| ICAO Code: | KHLN |
| Coordinates: | 46°36′24″N, 111°58′58″W |