How far is Chicago, IL, from Helena, MT?
The distance between Helena (Helena Regional Airport) and Chicago (Chicago O'Hare International Airport) is 1231 miles / 1981 kilometers / 1069 nautical miles.
The driving distance from Helena (HLN) to Chicago (ORD) is 1451 miles / 2335 kilometers, and travel time by car is about 25 hours 50 minutes.
Helena Regional Airport – Chicago O'Hare International Airport
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Distance from Helena to Chicago
There are several ways to calculate the distance from Helena to Chicago. Here are two standard methods:
Vincenty's formula (applied above)- 1230.723 miles
- 1980.656 kilometers
- 1069.469 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- 1227.627 miles
- 1975.675 kilometers
- 1066.779 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 Chicago?
The estimated flight time from Helena Regional Airport to Chicago O'Hare International Airport is 2 hours and 49 minutes.
What is the time difference between Helena and Chicago?
The time difference between Helena and Chicago is 1 hour. Chicago is 1 hour ahead of Helena.
Flight carbon footprint between Helena Regional Airport (HLN) and Chicago O'Hare International Airport (ORD)
On average, flying from Helena to Chicago generates about 163 kg of CO2 per passenger, and 163 kilograms equals 359 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 Chicago
See the map of the shortest flight path between Helena Regional Airport (HLN) and Chicago O'Hare International Airport (ORD).
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 | Chicago O'Hare International Airport |
|---|---|
| City: | Chicago, IL |
| Country: | United States |
| IATA Code: | ORD |
| ICAO Code: | KORD |
| Coordinates: | 41°58′42″N, 87°54′17″W |