How far is Islip, NY, from Rockford, IL?
The distance between Rockford (Chicago Rockford International Airport) and Islip (Long Island MacArthur Airport) is 834 miles / 1343 kilometers / 725 nautical miles.
The driving distance from Rockford (RFD) to Islip (ISP) is 933 miles / 1502 kilometers, and travel time by car is about 17 hours 27 minutes.
Chicago Rockford International Airport – Long Island MacArthur Airport
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Distance from Rockford to Islip
There are several ways to calculate the distance from Rockford to Islip. Here are two standard methods:
Vincenty's formula (applied above)- 834.375 miles
- 1342.797 kilometers
- 725.052 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- 832.259 miles
- 1339.392 kilometers
- 723.214 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 Islip?
The estimated flight time from Chicago Rockford International Airport to Long Island MacArthur Airport is 2 hours and 4 minutes.
What is the time difference between Rockford and Islip?
The time difference between Rockford and Islip is 1 hour. Islip is 1 hour ahead of Rockford.
Flight carbon footprint between Chicago Rockford International Airport (RFD) and Long Island MacArthur Airport (ISP)
On average, flying from Rockford to Islip generates about 138 kg of CO2 per passenger, and 138 kilograms equals 304 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 Islip
See the map of the shortest flight path between Chicago Rockford International Airport (RFD) and Long Island MacArthur Airport (ISP).
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 | Long Island MacArthur Airport |
|---|---|
| City: | Islip, NY |
| Country: | United States |
| IATA Code: | ISP |
| ICAO Code: | KISP |
| Coordinates: | 40°47′42″N, 73°6′0″W |