How far is Washington D.C. from Ontario, CA?
The distance between Ontario (Ontario International Airport) and Washington D.C. (Washington Dulles International Airport) is 2242 miles / 3608 kilometers / 1948 nautical miles.
The driving distance from Ontario (ONT) to Washington D.C. (IAD) is 2619 miles / 4215 kilometers, and travel time by car is about 46 hours 8 minutes.
Ontario International Airport – Washington Dulles International Airport
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Distance from Ontario to Washington D.C.
There are several ways to calculate the distance from Ontario to Washington D.C.. Here are two standard methods:
Vincenty's formula (applied above)- 2241.854 miles
- 3607.914 kilometers
- 1948.118 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- 2236.919 miles
- 3599.973 kilometers
- 1943.830 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 Ontario to Washington D.C.?
The estimated flight time from Ontario International Airport to Washington Dulles International Airport is 4 hours and 44 minutes.
What is the time difference between Ontario and Washington D.C.?
Flight carbon footprint between Ontario International Airport (ONT) and Washington Dulles International Airport (IAD)
On average, flying from Ontario to Washington D.C. generates about 245 kg of CO2 per passenger, and 245 kilograms equals 541 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Ontario to Washington D.C.
See the map of the shortest flight path between Ontario International Airport (ONT) and Washington Dulles International Airport (IAD).
Airport information
| Origin | Ontario International Airport |
|---|---|
| City: | Ontario, CA |
| Country: | United States  |
| IATA Code: | ONT |
| ICAO Code: | KONT |
| Coordinates: | 34°3′21″N, 117°36′3″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 |