How far is Dayton, OH, from Helena, MT?
The distance between Helena (Helena Regional Airport) and Dayton (Dayton International Airport) is 1466 miles / 2360 kilometers / 1274 nautical miles.
The driving distance from Helena (HLN) to Dayton (DAY) is 1739 miles / 2798 kilometers, and travel time by car is about 31 hours 34 minutes.
Helena Regional Airport – Dayton International Airport
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Distance from Helena to Dayton
There are several ways to calculate the distance from Helena to Dayton. 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 Helena to Dayton?
The estimated flight time from Helena Regional Airport to Dayton International Airport is 3 hours and 16 minutes.
What is the time difference between Helena and Dayton?
The time difference between Helena and Dayton is 2 hours. Dayton is 2 hours ahead of Helena.
Flight carbon footprint between Helena Regional Airport (HLN) and Dayton International Airport (DAY)
On average, flying from Helena to Dayton 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 Helena to Dayton
See the map of the shortest flight path between Helena Regional Airport (HLN) and Dayton International Airport (DAY).
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 | Dayton International Airport |
|---|---|
| City: | Dayton, OH |
| Country: | United States |
| IATA Code: | DAY |
| ICAO Code: | KDAY |
| Coordinates: | 39°54′8″N, 84°13′9″W |