How far is Billings, MT, from Rockford, IL?
The distance between Rockford (Chicago Rockford International Airport) and Billings (Billings Logan International Airport) is 998 miles / 1606 kilometers / 867 nautical miles.
The driving distance from Rockford (RFD) to Billings (BIL) is 1162 miles / 1870 kilometers, and travel time by car is about 20 hours 58 minutes.
Chicago Rockford International Airport – Billings Logan International Airport
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Distance from Rockford to Billings
There are several ways to calculate the distance from Rockford to Billings. 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 Rockford to Billings?
The estimated flight time from Chicago Rockford International Airport to Billings Logan International Airport is 2 hours and 23 minutes.
What is the time difference between Rockford and Billings?
The time difference between Rockford and Billings is 1 hour. Billings is 1 hour behind Rockford.
Flight carbon footprint between Chicago Rockford International Airport (RFD) and Billings Logan International Airport (BIL)
On average, flying from Rockford to Billings 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 Rockford to Billings
See the map of the shortest flight path between Chicago Rockford International Airport (RFD) and Billings Logan International Airport (BIL).
Airport information
| Origin | 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 |
| Destination | 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 |