How far is Cheongju from Rockford, IL?
The distance between Rockford (Chicago Rockford International Airport) and Cheongju (Cheongju International Airport) is 6532 miles / 10511 kilometers / 5676 nautical miles.
Chicago Rockford International Airport – Cheongju International Airport
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Distance from Rockford to Cheongju
There are several ways to calculate the distance from Rockford to Cheongju. Here are two standard methods:
Vincenty's formula (applied above)- 6531.541 miles
- 10511.496 kilometers
- 5675.754 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- 6516.540 miles
- 10487.355 kilometers
- 5662.719 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 Cheongju?
The estimated flight time from Chicago Rockford International Airport to Cheongju International Airport is 12 hours and 51 minutes.
What is the time difference between Rockford and Cheongju?
Flight carbon footprint between Chicago Rockford International Airport (RFD) and Cheongju International Airport (CJJ)
On average, flying from Rockford to Cheongju generates about 789 kg of CO2 per passenger, and 789 kilograms equals 1 740 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path from Rockford to Cheongju
See the map of the shortest flight path between Chicago Rockford International Airport (RFD) and Cheongju International Airport (CJJ).
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 | Cheongju International Airport |
|---|---|
| City: | Cheongju |
| Country: | South Korea  |
| IATA Code: | CJJ |
| ICAO Code: | RKTU |
| Coordinates: | 36°42′59″N, 127°29′56″E |