How far is Rockford, IL, from Billings, MT?
The distance between Billings (Billings Logan International Airport) and Rockford (Chicago Rockford International Airport) is 998 miles / 1606 kilometers / 867 nautical miles.
The driving distance from Billings (BIL) to Rockford (RFD) is 1162 miles / 1870 kilometers, and travel time by car is about 20 hours 51 minutes.
Billings Logan International Airport – Chicago Rockford International Airport
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Distance from Billings to Rockford
There are several ways to calculate the distance from Billings to Rockford. Here are two standard methods:
Vincenty's formula (applied above)- 997.911 miles
- 1605.981 kilometers
- 867.161 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- 995.402 miles
- 1601.944 kilometers
- 864.981 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 Billings to Rockford?
The estimated flight time from Billings Logan International Airport to Chicago Rockford International Airport is 2 hours and 23 minutes.
What is the time difference between Billings and Rockford?
The time difference between Billings and Rockford is 1 hour. Rockford is 1 hour ahead of Billings.
Flight carbon footprint between Billings Logan International Airport (BIL) and Chicago Rockford International Airport (RFD)
On average, flying from Billings to Rockford generates about 151 kg of CO2 per passenger, and 151 kilograms equals 332 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Billings to Rockford
See the map of the shortest flight path between Billings Logan International Airport (BIL) and Chicago Rockford International Airport (RFD).
Airport information
| Origin | Billings Logan International Airport |
|---|---|
| City: | Billings, MT |
| Country: | United States  |
| IATA Code: | BIL |
| ICAO Code: | KBIL |
| Coordinates: | 45°48′27″N, 108°32′34″W |
| Destination | Chicago Rockford International Airport |
|---|---|
| City: | Rockford, IL |
| Country: | United States |
| IATA Code: | RFD |
| ICAO Code: | KRFD |
| Coordinates: | 42°11′43″N, 89°5′49″W |