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Boston–Rockford | BOS–RFD
Calculations with different methods
- 925.623 miles
- 1489.646 kilometers
- 804.345 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
- 923.188 miles
- 1485.727 kilometers
- 802.228 nautical miles
The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance).
Estimated flight time from Logan International Airport (BOS) to Chicago Rockford International Airport (RFD) is 2 hours 15 minutes.
Time difference and current local times
The time difference between Boston and Rockford is 1 hour. Rockford is 1 hour behind Boston.
Boston to Rockford flight map.
Frequent Flyer Miles Calculator
Boston (BOS) → Rockford (RFD).