# Distance between Rock Springs, WY (RKS) and Modesto, CA (MOD)

Flight distance from Rock Springs to Modesto (Southwest Wyoming Regional Airport – Modesto City–County Airport) is 690 miles / 1111 kilometers / 600 nautical miles. Estimated flight time is 1 hour 48 minutes.

Driving distance from Rock Springs (RKS) to Modesto (MOD) is 917 miles / 1475 kilometers and travel time by car is about 14 hours 51 minutes.

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

Shortest flight path between Southwest Wyoming Regional Airport (RKS) and Modesto City–County Airport (MOD).

## How far is Modesto from Rock Springs?

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

Vincenty's formula (applied above)
• 690.189 miles
• 1110.752 kilometers
• 599.758 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
• 688.914 miles
• 1108.699 kilometers
• 598.650 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 Modesto City–County Airport
City: Modesto, CA
Country: United States
IATA Code: MOD
ICAO Code: KMOD
Coordinates: 37°37′32″N, 120°57′14″W

## Time difference and current local times

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

MDT

PDT

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 123 kg (272 pounds).

## Frequent Flyer Miles Calculator

Rock Springs (RKS) → Modesto (MOD).

Distance:
690
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
690

Round trip?