How far is Philadelphia, PA, from Helena, MT?
The distance between Helena (Helena Regional Airport) and Philadelphia (Philadelphia International Airport) is 1893 miles / 3047 kilometers / 1645 nautical miles.
The driving distance from Helena (HLN) to Philadelphia (PHL) is 2223 miles / 3577 kilometers, and travel time by car is about 40 hours 12 minutes.
Helena Regional Airport – Philadelphia International Airport
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Distance from Helena to Philadelphia
There are several ways to calculate the distance from Helena to Philadelphia. Here are two standard methods:
Vincenty's formula (applied above)- 1893.202 miles
- 3046.813 kilometers
- 1645.148 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- 1888.529 miles
- 3039.292 kilometers
- 1641.086 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 Philadelphia?
The estimated flight time from Helena Regional Airport to Philadelphia International Airport is 4 hours and 5 minutes.
What is the time difference between Helena and Philadelphia?
Flight carbon footprint between Helena Regional Airport (HLN) and Philadelphia International Airport (PHL)
On average, flying from Helena to Philadelphia generates about 208 kg of CO2 per passenger, and 208 kilograms equals 458 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 Philadelphia
See the map of the shortest flight path between Helena Regional Airport (HLN) and Philadelphia International Airport (PHL).
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 | Philadelphia International Airport |
|---|---|
| City: | Philadelphia, PA |
| Country: | United States |
| IATA Code: | PHL |
| ICAO Code: | KPHL |
| Coordinates: | 39°52′18″N, 75°14′27″W |