How far is St Petersburg, FL, from Helena, MT?
The distance between Helena (Helena Regional Airport) and St Petersburg (St. Pete–Clearwater International Airport) is 2046 miles / 3292 kilometers / 1778 nautical miles.
The driving distance from Helena (HLN) to St Petersburg (PIE) is 2534 miles / 4078 kilometers, and travel time by car is about 45 hours 52 minutes.
Helena Regional Airport – St. Pete–Clearwater International Airport
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Distance from Helena to St Petersburg
There are several ways to calculate the distance from Helena to St Petersburg. Here are two standard methods:
Vincenty's formula (applied above)- 2045.762 miles
- 3292.335 kilometers
- 1777.719 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- 2044.431 miles
- 3290.193 kilometers
- 1776.562 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 St Petersburg?
The estimated flight time from Helena Regional Airport to St. Pete–Clearwater International Airport is 4 hours and 22 minutes.
What is the time difference between Helena and St Petersburg?
Flight carbon footprint between Helena Regional Airport (HLN) and St. Pete–Clearwater International Airport (PIE)
On average, flying from Helena to St Petersburg generates about 223 kg of CO2 per passenger, and 223 kilograms equals 491 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 St Petersburg
See the map of the shortest flight path between Helena Regional Airport (HLN) and St. Pete–Clearwater International Airport (PIE).
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 | St. Pete–Clearwater International Airport |
|---|---|
| City: | St Petersburg, FL |
| Country: | United States |
| IATA Code: | PIE |
| ICAO Code: | KPIE |
| Coordinates: | 27°54′36″N, 82°41′14″W |