How far is Ontario from Seattle?
There are several ways to calculate distances between Seattle and Ontario. Here are two common methods:Vincenty's formula (applied above)
- 961.405 miles
- 1547.231 kilometers
- 835.438 nautical miles
Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.Haversine formula
- 962.416 miles
- 1548.859 kilometers
- 836.317 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).
Estimated flight time from Boeing Field (BFI) to Ontario International Airport (ONT) is 2 hours 19 minutes.
Time difference and current local times
There is no time difference between Seattle and Ontario.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 148 kg (327 pounds).
Seattle to Ontario flight path
Shortest flight path between Boeing Field (BFI) and Ontario International Airport (ONT).
Frequent Flyer Miles Calculator
Seattle (BFI) → Ontario (ONT).