How far is Portland, ME, from Rockford, IL?
The distance between Rockford (Chicago Rockford International Airport) and Portland (Portland International Jetport) is 956 miles / 1539 kilometers / 831 nautical miles.
The driving distance from Rockford (RFD) to Portland (PWM) is 1174 miles / 1890 kilometers, and travel time by car is about 22 hours 11 minutes.
Chicago Rockford International Airport – Portland International Jetport
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Distance from Rockford to Portland
There are several ways to calculate the distance from Rockford to Portland. Here are two standard methods:
Vincenty's formula (applied above)- 956.328 miles
- 1539.060 kilometers
- 831.026 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- 953.813 miles
- 1535.013 kilometers
- 828.841 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 Portland?
The estimated flight time from Chicago Rockford International Airport to Portland International Jetport is 2 hours and 18 minutes.
What is the time difference between Rockford and Portland?
The time difference between Rockford and Portland is 1 hour. Portland is 1 hour ahead of Rockford.
Flight carbon footprint between Chicago Rockford International Airport (RFD) and Portland International Jetport (PWM)
On average, flying from Rockford to Portland generates about 148 kg of CO2 per passenger, and 148 kilograms equals 326 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 Portland
See the map of the shortest flight path between Chicago Rockford International Airport (RFD) and Portland International Jetport (PWM).
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 | Portland International Jetport |
|---|---|
| City: | Portland, ME |
| Country: | United States |
| IATA Code: | PWM |
| ICAO Code: | KPWM |
| Coordinates: | 43°38′46″N, 70°18′33″W |