# Distance between Rock Springs, WY (RKS) and Seattle, WA (BFI)

Flight distance from Rock Springs to Seattle (Southwest Wyoming Regional Airport – Seattle Boeing Field) is 770 miles / 1239 kilometers / 669 nautical miles. Estimated flight time is 1 hour 57 minutes.

Driving distance from Rock Springs (RKS) to Seattle (BFI) is 985 miles / 1585 kilometers and travel time by car is about 16 hours 9 minutes.

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

Shortest flight path between Southwest Wyoming Regional Airport (RKS) and Seattle Boeing Field (BFI).

## How far is Seattle from Rock Springs?

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

Vincenty's formula (applied above)
• 769.766 miles
• 1238.819 kilometers
• 668.909 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
• 768.385 miles
• 1236.595 kilometers
• 667.708 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 Seattle Boeing Field
City: Seattle, WA
Country: United States
IATA Code: BFI
ICAO Code: KBFI
Coordinates: 47°31′47″N, 122°18′7″W

## Time difference and current local times

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

MDT

PDT

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 132 kg (291 pounds).

## Frequent Flyer Miles Calculator

Rock Springs (RKS) → Seattle (BFI).

Distance:
770
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
770

Round trip?