Air Miles Calculator

Distance between Rock Springs, WY (RKS) and Portsmouth, NH (PSM)

Flight distance from Rock Springs to Portsmouth (Southwest Wyoming Regional Airport – Portsmouth International Airport at Pease) is 1944 miles / 3129 kilometers / 1689 nautical miles. Estimated flight time is 4 hours 10 minutes.

Driving distance from Rock Springs (RKS) to Portsmouth (PSM) is 2241 miles / 3607 kilometers and travel time by car is about 38 hours 9 minutes.

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

Shortest flight path between Southwest Wyoming Regional Airport (RKS) and Portsmouth International Airport at Pease (PSM).

How far is Portsmouth from Rock Springs?

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

Vincenty's formula (applied above)
  • 1943.985 miles
  • 3128.541 kilometers
  • 1689.277 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
  • 1938.884 miles
  • 3120.331 kilometers
  • 1684.844 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 Flag of United States
IATA Code: RKS
ICAO Code: KRKS
Coordinates: 41°35′39″N, 109°3′54″W

B Portsmouth International Airport at Pease
City: Portsmouth, NH
Country: United States Flag of United States
IATA Code: PSM
ICAO Code: KPSM
Coordinates: 43°4′40″N, 70°49′23″W

Time difference and current local times

The time difference between Rock Springs and Portsmouth is 2 hours. Portsmouth is 2 hours ahead of Rock Springs.

Time Difference

Rock Springs, WY

 MDT

Portsmouth, NH

 EDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 212 kg (468 pounds).

Frequent Flyer Miles Calculator

Rock Springs (RKS) → Portsmouth (PSM).

Distance:
1944
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
1944

Round trip?