Map of flight path and driving directions from Redmond to Ontario.
Shortest flight path between Roberts Field (RDM) and Ontario International Airport (ONT).
How far is Ontario from Redmond?
There are several ways to calculate distances between Redmond and Ontario. Here are two common methods:Vincenty's formula (applied above)
- 728.672 miles
- 1172.684 kilometers
- 633.199 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
- 729.628 miles
- 1174.223 kilometers
- 634.030 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).
Time difference and current local times
There is no time difference between Redmond and Ontario.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 128 kg (282 pounds).
Frequent Flyer Miles Calculator
Redmond (RDM) → Ontario (ONT).