How far is Ontario, CA, from Kalispell, MT?
The distance between Kalispell (Glacier Park International Airport) and Ontario (Ontario International Airport) is 999 miles / 1607 kilometers / 868 nautical miles.
The driving distance from Kalispell (FCA) to Ontario (ONT) is 1287 miles / 2072 kilometers, and travel time by car is about 21 hours 55 minutes.
Glacier Park International Airport – Ontario International Airport
Search flights
Distance from Kalispell to Ontario
There are several ways to calculate the distance from Kalispell to Ontario. Here are two standard methods:
Vincenty's formula (applied above)- 998.757 miles
- 1607.343 kilometers
- 867.896 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- 999.874 miles
- 1609.141 kilometers
- 868.867 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 Kalispell to Ontario?
The estimated flight time from Glacier Park International Airport to Ontario International Airport is 2 hours and 23 minutes.
What is the time difference between Kalispell and Ontario?
The time difference between Kalispell and Ontario is 1 hour. Ontario is 1 hour behind Kalispell.
Flight carbon footprint between Glacier Park International Airport (FCA) and Ontario International Airport (ONT)
On average, flying from Kalispell to Ontario generates about 151 kg of CO2 per passenger, and 151 kilograms equals 332 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Kalispell to Ontario
See the map of the shortest flight path between Glacier Park International Airport (FCA) and Ontario International Airport (ONT).
Airport information
| Origin | Glacier Park International Airport |
|---|---|
| City: | Kalispell, MT |
| Country: | United States  |
| IATA Code: | FCA |
| ICAO Code: | KGPI |
| Coordinates: | 48°18′37″N, 114°15′21″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 |