Air Miles Calculator

Distance between Seoul (ICN) and Rockford, IL (RFD)

Distance from Seoul to Rockford (Chicago Rockford International Airport – Incheon International Airport) is 6511 miles / 10478 kilometers / 5658 nautical miles.

Calculations with different methods

Vincenty's formula (applied above)
  • 6510.964 miles
  • 10478.380 kilometers
  • 5657.873 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.

Haversine formula
  • 6495.846 miles
  • 10454.050 kilometers
  • 5644.735 nautical miles

The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance).

Flight duration

Estimated flight time from Incheon International Airport (ICN) to Chicago Rockford International Airport (RFD) is 12 hours 49 minutes.

Time difference and current local times

The time difference between Seoul and Rockford is 14 hours. Rockford is 14 hours behind Seoul.

Time Difference

Seoul
Rockford

Seoul

 KST

Rockford, IL

 CDT

Airport information


A Incheon International Airport
City: Seoul
Country: South Korea Flag of South Korea
IATA Code: ICN
ICAO Code: RKSI
Coordinates: 37°27′36″N, 126°26′26″E

B Chicago Rockford International Airport
City: Rockford, IL
Country: United States Flag of United States
IATA Code: RFD
ICAO Code: KRFD
Coordinates: 42°11′43″N, 89°5′49″W

Map

Seoul to Rockford flight map.

Frequent Flyer Miles Calculator

Seoul (ICN) → Rockford (RFD).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
6511
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
6511

Round trip?