How far is Reading, PA, from Helena, MT?
The distance between Helena (Helena Regional Airport) and Reading (Reading Regional Airport) is 1843 miles / 2967 kilometers / 1602 nautical miles.
The driving distance from Helena (HLN) to Reading (RDG) is 2179 miles / 3507 kilometers, and travel time by car is about 39 hours 14 minutes.
Helena Regional Airport – Reading Regional Airport
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Distance from Helena to Reading
There are several ways to calculate the distance from Helena to Reading. 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 Helena to Reading?
The estimated flight time from Helena Regional Airport to Reading Regional Airport is 3 hours and 59 minutes.
What is the time difference between Helena and Reading?
The time difference between Helena and Reading is 2 hours. Reading is 2 hours ahead of Helena.
Flight carbon footprint between Helena Regional Airport (HLN) and Reading Regional Airport (RDG)
On average, flying from Helena to Reading 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 Helena to Reading
See the map of the shortest flight path between Helena Regional Airport (HLN) and Reading Regional Airport (RDG).
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 | Reading Regional Airport |
|---|---|
| City: | Reading, PA |
| Country: | United States |
| IATA Code: | RDG |
| ICAO Code: | KRDG |
| Coordinates: | 40°22′42″N, 75°57′54″W |