How far is Washington D.C. from Chicago, IL?
The distance between Chicago (Chicago O'Hare International Airport) and Washington D.C. (Ronald Reagan Washington National Airport) is 612 miles / 985 kilometers / 532 nautical miles.
The driving distance from Chicago (ORD) to Washington D.C. (DCA) is 716 miles / 1153 kilometers, and travel time by car is about 13 hours 36 minutes.
Chicago O'Hare International Airport – Ronald Reagan Washington National 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)- 611.819 miles
- 984.627 kilometers
- 531.656 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- 610.572 miles
- 982.620 kilometers
- 530.573 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 Ronald Reagan Washington National Airport is 1 hour and 39 minutes.
What is the time difference between Chicago and Washington D.C.?
Flight carbon footprint between Chicago O'Hare International Airport (ORD) and Ronald Reagan Washington National Airport (DCA)
On average, flying from Chicago to Washington D.C. generates about 114 kg of CO2 per passenger, and 114 kilograms equals 252 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 Ronald Reagan Washington National Airport (DCA).
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 | Ronald Reagan Washington National Airport |
|---|---|
| City: | Washington D.C. |
| Country: | United States |
| IATA Code: | DCA |
| ICAO Code: | KDCA |
| Coordinates: | 38°51′7″N, 77°2′15″W |
Airlines flying from Chicago (ORD) to Washington D.C. (DCA)
| American Airlines |
| United Airlines |