How far is Helena, MT, from Dayton, OH?
The distance between Dayton (Dayton International Airport) and Helena (Helena Regional Airport) is 1466 miles / 2360 kilometers / 1274 nautical miles.
The driving distance from Dayton (DAY) to Helena (HLN) is 1758 miles / 2829 kilometers, and travel time by car is about 31 hours 25 minutes.
Dayton International Airport – Helena Regional Airport
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Distance from Dayton to Helena
There are several ways to calculate the distance from Dayton to Helena. Here are two standard methods:
Vincenty's formula (applied above)- 1466.387 miles
- 2359.921 kilometers
- 1274.256 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- 1462.971 miles
- 2354.423 kilometers
- 1271.287 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 Dayton to Helena?
The estimated flight time from Dayton International Airport to Helena Regional Airport is 3 hours and 16 minutes.
What is the time difference between Dayton and Helena?
The time difference between Dayton and Helena is 2 hours. Helena is 2 hours behind Dayton.
Flight carbon footprint between Dayton International Airport (DAY) and Helena Regional Airport (HLN)
On average, flying from Dayton to Helena generates about 177 kg of CO2 per passenger, and 177 kilograms equals 391 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Dayton to Helena
See the map of the shortest flight path between Dayton International Airport (DAY) and Helena Regional Airport (HLN).
Airport information
| Origin | Dayton International Airport |
|---|---|
| City: | Dayton, OH |
| Country: | United States  |
| IATA Code: | DAY |
| ICAO Code: | KDAY |
| Coordinates: | 39°54′8″N, 84°13′9″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 |