Air Miles Calculator

Distance between Rock Springs, WY (RKS) and Ontario, CA (ONT)

Flight distance from Rock Springs to Ontario (Southwest Wyoming Regional Airport – Ontario International Airport) is 698 miles / 1123 kilometers / 607 nautical miles. Estimated flight time is 1 hour 49 minutes.

Driving distance from Rock Springs (RKS) to Ontario (ONT) is 818 miles / 1316 kilometers and travel time by car is about 13 hours 17 minutes.

Map of flight path and driving directions from Rock Springs to Ontario.

Shortest flight path between Southwest Wyoming Regional Airport (RKS) and Ontario International Airport (ONT).

How far is Ontario from Rock Springs?

There are several ways to calculate distances between Rock Springs and Ontario. Here are two common methods:

Vincenty's formula (applied above)
  • 698.080 miles
  • 1123.450 kilometers
  • 606.615 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
  • 698.046 miles
  • 1123.397 kilometers
  • 606.586 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 Southwest Wyoming Regional Airport
City: Rock Springs, WY
Country: United States Flag of United States
IATA Code: RKS
ICAO Code: KRKS
Coordinates: 41°35′39″N, 109°3′54″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

The time difference between Rock Springs and Ontario is 1 hour. Ontario is 1 hour behind Rock Springs.

Time Difference

Rock Springs, WY

 MDT

Ontario, CA

 PDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 124 kg (274 pounds).

Frequent Flyer Miles Calculator

Rock Springs (RKS) → Ontario (ONT).

Distance:
698
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
698

Round trip?