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Rapid City–Chicago | RAP–ORD
Calculations with different methods
- 779.542 miles
- 1254.550 kilometers
- 677.403 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
- 777.551 miles
- 1251.347 kilometers
- 675.673 nautical miles
The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance).
Estimated flight time from Rapid City Regional Airport (RAP) to O'Hare International Airport (ORD) is 1 hour 58 minutes.
Time difference and current local times
The time difference between Rapid City and Chicago is 1 hour. Chicago is 1 hour ahead of Rapid City.
Rapid City, SD
Rapid City to Chicago flight map.
Frequent Flyer Miles Calculator
Rapid City (RAP) → Chicago (ORD).