How far is Washington D.C. from Chicago?
There are several ways to calculate distances between Chicago and Washington D.C.. 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 Chicago Midway International Airport (MDW) to Washington Dulles International Airport (IAD) is 1 hour 35 minutes.
Time difference and current local times
The time difference between Chicago and Washington D.C. is 1 hour. Washington D.C. is 1 hour ahead of Chicago.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 110 kg (242 pounds).
Chicago to Washington D.C. flight path
Shortest flight path between Chicago Midway International Airport (MDW) and Washington Dulles International Airport (IAD).
Frequent Flyer Miles Calculator
Chicago (MDW) → Washington D.C. (IAD).