Calculations with different methods
- 621.451 miles
- 1000.129 kilometers
- 540.026 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
- 620.111 miles
- 997.972 kilometers
- 538.862 nautical miles
The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance).
Estimated flight time from O'Hare International Airport (ORD) to Baltimore–Washington International Airport (BWI) is 1 hour 40 minutes.
Time difference and current local times
The time difference between Chicago and Baltimore is 1 hour. Baltimore is 1 hour ahead of Chicago.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 105 kg (231 pounds).
Chicago to Baltimore flight map.
Frequent Flyer Miles Calculator
Chicago (ORD) → Baltimore (BWI).