How far is Ontario, CA, from Grand Junction, CO?
The distance between Grand Junction (Grand Junction Regional Airport) and Ontario (Ontario International Airport) is 613 miles / 987 kilometers / 533 nautical miles.
The driving distance from Grand Junction (GJT) to Ontario (ONT) is 738 miles / 1188 kilometers, and travel time by car is about 12 hours 34 minutes.
Grand Junction Regional Airport – Ontario International Airport
Search flights
Distance from Grand Junction to Ontario
There are several ways to calculate the distance from Grand Junction to Ontario. Here are two standard methods:
Vincenty's formula (applied above)- 613.186 miles
- 986.827 kilometers
- 532.844 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- 612.636 miles
- 985.942 kilometers
- 532.366 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 Grand Junction to Ontario?
The estimated flight time from Grand Junction Regional Airport to Ontario International Airport is 1 hour and 39 minutes.
What is the time difference between Grand Junction and Ontario?
Flight carbon footprint between Grand Junction Regional Airport (GJT) and Ontario International Airport (ONT)
On average, flying from Grand Junction to Ontario 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 Grand Junction to Ontario
See the map of the shortest flight path between Grand Junction Regional Airport (GJT) and Ontario International Airport (ONT).
Airport information
| Origin | Grand Junction Regional Airport |
|---|---|
| City: | Grand Junction, CO |
| Country: | United States  |
| IATA Code: | GJT |
| ICAO Code: | KGJT |
| Coordinates: | 39°7′20″N, 108°31′37″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 |