# Distance between Rock Springs, WY (RKS) and Fresno, CA (FAT)

Flight distance from Rock Springs to Fresno (Southwest Wyoming Regional Airport – Fresno Yosemite International Airport) is 661 miles / 1063 kilometers / 574 nautical miles. Estimated flight time is 1 hour 45 minutes.

Driving distance from Rock Springs (RKS) to Fresno (FAT) is 981 miles / 1578 kilometers and travel time by car is about 16 hours 17 minutes.

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

Shortest flight path between Southwest Wyoming Regional Airport (RKS) and Fresno Yosemite International Airport (FAT).

## How far is Fresno from Rock Springs?

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

Vincenty's formula (applied above)
• 660.763 miles
• 1063.395 kilometers
• 574.187 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
• 659.819 miles
• 1061.875 kilometers
• 573.367 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 Fresno Yosemite International Airport
City: Fresno, CA
Country: United States
IATA Code: FAT
ICAO Code: KFAT
Coordinates: 36°46′34″N, 119°43′4″W

## Time difference and current local times

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

MDT

PDT

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 120 kg (265 pounds).

## Frequent Flyer Miles Calculator

Rock Springs (RKS) → Fresno (FAT).

Distance:
661
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
661

Round trip?