Air Miles Calculator

Distance between Redmond, OR (RDM) and Ontario, CA (ONT)

Flight distance from Redmond to Ontario (Roberts Field – Ontario International Airport) is 729 miles / 1173 kilometers / 633 nautical miles. Estimated flight time is 1 hour 52 minutes.

Driving distance from Redmond (RDM) to Ontario (ONT) is 872 miles / 1404 kilometers and travel time by car is about 16 hours 3 minutes.

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).

Airport information


A Roberts Field
City: Redmond, OR
Country: United States Flag of United States
IATA Code: RDM
ICAO Code: KRDM
Coordinates: 44°15′14″N, 121°9′0″W

B Ontario International Airport
City: Ontario, CA
Country: United States Flag of United States
IATA Code: ONT
ICAO Code: KONT
Coordinates: 34°3′21″N, 117°36′3″W

Time difference and current local times

There is no time difference between Redmond and Ontario.

Time Difference

Redmond, OR

 PST

Ontario, CA

 PST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 128 kg (282 pounds).

Frequent Flyer Miles Calculator

Redmond (RDM) → Ontario (ONT).

Distance:
729
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
729

Round trip?