How far is Ontario, CA, from Washington D.C.?
The distance between Washington D.C. (Washington Dulles International Airport) and Ontario (Ontario International Airport) is 2242 miles / 3608 kilometers / 1948 nautical miles.
The driving distance from Washington D.C. (IAD) to Ontario (ONT) is 2618 miles / 4214 kilometers, and travel time by car is about 46 hours 4 minutes.
Washington Dulles International Airport – Ontario International Airport
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Distance from Washington D.C. to Ontario
There are several ways to calculate the distance from Washington D.C. to Ontario. 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 Washington D.C. to Ontario?
The estimated flight time from Washington Dulles International Airport to Ontario International Airport is 4 hours and 44 minutes.
What is the time difference between Washington D.C. and Ontario?
Flight carbon footprint between Washington Dulles International Airport (IAD) and Ontario International Airport (ONT)
On average, flying from Washington D.C. to Ontario 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 Washington D.C. to Ontario
See the map of the shortest flight path between Washington Dulles International Airport (IAD) and Ontario International Airport (ONT).
Airport information
| Origin | 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 |
| Destination | Ontario International Airport |
|---|---|
| City: | Ontario, CA |
| Country: | United States |
| IATA Code: | ONT |
| ICAO Code: | KONT |
| Coordinates: | 34°3′21″N, 117°36′3″W |