How far is Ontario, CA, from Watertown, SD?
The distance between Watertown (Watertown Regional Airport) and Ontario (Ontario International Airport) is 1319 miles / 2123 kilometers / 1146 nautical miles.
The driving distance from Watertown (ATY) to Ontario (ONT) is 1733 miles / 2789 kilometers, and travel time by car is about 30 hours 2 minutes.
Watertown Regional Airport – Ontario International Airport
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Distance from Watertown to Ontario
There are several ways to calculate the distance from Watertown to Ontario. 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 Watertown to Ontario?
The estimated flight time from Watertown Regional Airport to Ontario International Airport is 2 hours and 59 minutes.
What is the time difference between Watertown and Ontario?
The time difference between Watertown and Ontario is 2 hours. Ontario is 2 hours behind Watertown.
Flight carbon footprint between Watertown Regional Airport (ATY) and Ontario International Airport (ONT)
On average, flying from Watertown to Ontario 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 Watertown to Ontario
See the map of the shortest flight path between Watertown Regional Airport (ATY) and Ontario International Airport (ONT).
Airport information
| Origin | Watertown Regional Airport |
|---|---|
| City: | Watertown, SD |
| Country: | United States  |
| IATA Code: | ATY |
| ICAO Code: | KATY |
| Coordinates: | 44°54′50″N, 97°9′16″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 |