# Distance between Casper, WY (CPR) and Lopez, WA (LPS)

Flight distance from Casper to Lopez (Casper–Natrona County International Airport – Lopez Island Airport) is 883 miles / 1421 kilometers / 767 nautical miles. Estimated flight time is 2 hours 10 minutes.

Driving distance from Casper (CPR) to Lopez (LPS) is 1196 miles / 1925 kilometers and travel time by car is about 20 hours 35 minutes.

## Map of flight path and driving directions from Casper to Lopez.

Shortest flight path between Casper–Natrona County International Airport (CPR) and Lopez Island Airport (LPS).

## How far is Lopez from Casper?

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

Vincenty's formula (applied above)
• 882.960 miles
• 1420.986 kilometers
• 767.271 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
• 881.013 miles
• 1417.853 kilometers
• 765.579 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 Casper–Natrona County International Airport
City: Casper, WY
Country: United States
IATA Code: CPR
ICAO Code: KCPR
Coordinates: 42°54′28″N, 106°27′50″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 Casper and Lopez is 1 hour. Lopez is 1 hour behind Casper.

MDT

PDT

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 142 kg (313 pounds).

## Frequent Flyer Miles Calculator

Casper (CPR) → Lopez (LPS).

Distance:
883
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
883

Round trip?