Air Miles Calculator

Distance between Rapid City, SD (RAP) and Chicago, IL (ORD)

Distance from Rapid City Regional Airport to O'Hare International Airport is 780 miles / 1255 kilometers / 677 nautical miles.

Calculations with different methods

Vincenty's formula (applied above)
  • 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).

Flight duration

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.

Time Difference

Rapid City
Chicago

Rapid City, SD

 MST

Chicago, IL

 CST

Airport information


A Rapid City Regional Airport
City: Rapid City, SD
Country: United States Flag of United States
IATA Code: RAP
ICAO Code: KRAP
Coordinates: 44°2′43″N, 103°3′25″W

B O'Hare International Airport
City: Chicago, IL
Country: United States Flag of United States
IATA Code: ORD
ICAO Code: KORD
Coordinates: 41°58′42″N, 87°54′17″W

Map

Flight map from Rapid City to Chicago.

Frequent Flyer Miles Calculator

Rapid City (RAP) → Chicago (ORD).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
780
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
780

Round trip?