How far is Watertown, SD, from Ontario, CA?
The distance between Ontario (Ontario International Airport) and Watertown (Watertown Regional Airport) is 1319 miles / 2123 kilometers / 1146 nautical miles.
The driving distance from Ontario (ONT) to Watertown (ATY) is 1734 miles / 2790 kilometers, and travel time by car is about 30 hours 3 minutes.
Ontario International Airport – Watertown Regional Airport
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Distance from Ontario to Watertown
There are several ways to calculate the distance from Ontario to Watertown. Here are two standard methods:
Vincenty's formula (applied above)- 1318.989 miles
- 2122.706 kilometers
- 1146.170 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- 1317.439 miles
- 2120.213 kilometers
- 1144.823 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 Watertown?
The estimated flight time from Ontario International Airport to Watertown Regional Airport is 2 hours and 59 minutes.
What is the time difference between Ontario and Watertown?
The time difference between Ontario and Watertown is 2 hours. Watertown is 2 hours ahead of Ontario.
Flight carbon footprint between Ontario International Airport (ONT) and Watertown Regional Airport (ATY)
On average, flying from Ontario to Watertown generates about 168 kg of CO2 per passenger, and 168 kilograms equals 371 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 Watertown
See the map of the shortest flight path between Ontario International Airport (ONT) and Watertown Regional Airport (ATY).
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 | Watertown Regional Airport |
|---|---|
| City: | Watertown, SD |
| Country: | United States |
| IATA Code: | ATY |
| ICAO Code: | KATY |
| Coordinates: | 44°54′50″N, 97°9′16″W |