How far is Washington D.C. from Chicago, IL?
The distance between Chicago (Chicago O'Hare International Airport) and Washington D.C. (Washington Dulles International Airport) is 589 miles / 947 kilometers / 512 nautical miles.
The driving distance from Chicago (ORD) to Washington D.C. (IAD) is 709 miles / 1141 kilometers, and travel time by car is about 13 hours 25 minutes.
Chicago O'Hare International Airport – Washington Dulles International Airport
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Distance from Chicago to Washington D.C.
There are several ways to calculate the distance from Chicago to Washington D.C.. Here are two standard methods:
Vincenty's formula (applied above)- 588.645 miles
- 947.332 kilometers
- 511.518 nautical miles
Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.
Haversine formula- 587.448 miles
- 945.406 kilometers
- 510.478 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).
How long does it take to fly from Chicago to Washington D.C.?
The estimated flight time from Chicago O'Hare International Airport to Washington Dulles International Airport is 1 hour and 36 minutes.
What is the time difference between Chicago and Washington D.C.?
Flight carbon footprint between Chicago O'Hare International Airport (ORD) and Washington Dulles International Airport (IAD)
On average, flying from Chicago to Washington D.C. generates about 111 kg of CO2 per passenger, and 111 kilograms equals 245 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Chicago to Washington D.C.
See the map of the shortest flight path between Chicago O'Hare International Airport (ORD) and Washington Dulles International Airport (IAD).
Airport information
| Origin | Chicago O'Hare International Airport |
|---|---|
| City: | Chicago, IL |
| Country: | United States  |
| IATA Code: | ORD |
| ICAO Code: | KORD |
| Coordinates: | 41°58′42″N, 87°54′17″W |
| Destination | Washington Dulles International Airport |
|---|---|
| City: | Washington D.C. |
| Country: | United States |
| IATA Code: | IAD |
| ICAO Code: | KIAD |
| Coordinates: | 38°56′40″N, 77°27′20″W |
Airlines flying from Chicago (ORD) to Washington D.C. (IAD)
| United Airlines |