How far is Chicago from Washington D.C.?
There are several ways to calculate distances between Washington D.C. and Chicago. Here are two common methods:Vincenty's formula (applied above)
- 577.259 miles
- 929.008 kilometers
- 501.624 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
- 576.064 miles
- 927.085 kilometers
- 500.586 nautical miles
The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).
Estimated flight time from Washington Dulles International Airport (IAD) to Midway International Airport (MDW) is 1 hour 35 minutes.
Time difference and current local times
The time difference between Washington D.C. and Chicago is 1 hour. Chicago is 1 hour behind Washington D.C..
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 100 kg (220 pounds).
Washington D.C. to Chicago flight map.
Frequent Flyer Miles Calculator
Washington D.C. (IAD) → Chicago (MDW).