Air Miles Calculator

Distance between Rock Springs, WY (RKS) and Lopez, WA (LPS)

Flight distance from Rock Springs to Lopez (Southwest Wyoming Regional Airport – Lopez Island Airport) is 827 miles / 1331 kilometers / 719 nautical miles. Estimated flight time is 2 hours 3 minutes.

Driving distance from Rock Springs (RKS) to Lopez (LPS) is 1077 miles / 1734 kilometers and travel time by car is about 18 hours 38 minutes.

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

Shortest flight path between Southwest Wyoming Regional Airport (RKS) and Lopez Island Airport (LPS).

How far is Lopez from Rock Springs?

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

Vincenty's formula (applied above)
  • 827.242 miles
  • 1331.317 kilometers
  • 718.853 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
  • 825.853 miles
  • 1329.081 kilometers
  • 717.646 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 Lopez Island Airport
City: Lopez, WA
Country: United States Flag of United States
IATA Code: LPS
ICAO Code: S31
Coordinates: 48°29′2″N, 122°56′16″W

Time difference and current local times

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

Time Difference

Rock Springs, WY

 MDT

Lopez, WA

 PDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 137 kg (303 pounds).

Frequent Flyer Miles Calculator

Rock Springs (RKS) → Lopez (LPS).

Distance:
827
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
827

Round trip?