How far is Duluth, MN, from Rockford, IL?
The distance between Rockford (Chicago Rockford International Airport) and Duluth (Duluth International Airport) is 355 miles / 572 kilometers / 309 nautical miles.
The driving distance from Rockford (RFD) to Duluth (DLH) is 408 miles / 657 kilometers, and travel time by car is about 7 hours 56 minutes.
Chicago Rockford International Airport – Duluth International Airport
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Distance from Rockford to Duluth
There are several ways to calculate the distance from Rockford to Duluth. Here are two standard methods:
Vincenty's formula (applied above)- 355.371 miles
- 571.914 kilometers
- 308.809 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- 355.379 miles
- 571.927 kilometers
- 308.816 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 Duluth?
The estimated flight time from Chicago Rockford International Airport to Duluth International Airport is 1 hour and 10 minutes.
What is the time difference between Rockford and Duluth?
Flight carbon footprint between Chicago Rockford International Airport (RFD) and Duluth International Airport (DLH)
On average, flying from Rockford to Duluth generates about 77 kg of CO2 per passenger, and 77 kilograms equals 170 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 Duluth
See the map of the shortest flight path between Chicago Rockford International Airport (RFD) and Duluth International Airport (DLH).
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 | Duluth International Airport |
|---|---|
| City: | Duluth, MN |
| Country: | United States |
| IATA Code: | DLH |
| ICAO Code: | KDLH |
| Coordinates: | 46°50′31″N, 92°11′36″W |