# 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
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
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.

MDT

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?