Calculations with different methods
- 240.199 miles
- 386.562 kilometers
- 208.727 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
- 239.913 miles
- 386.103 kilometers
- 208.479 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 Dayton International Airport (DAY) is 57 minutes.
Time difference and current local times
The time difference between Chicago and Dayton is 1 hour. Dayton is 1 hour ahead of Chicago.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 59 kg (129 pounds).
Chicago to Dayton flight map.
Frequent Flyer Miles Calculator
Chicago (ORD) → Dayton (DAY).