Air Miles Calculator

Distance between St Louis, MO (STL) and Westerly, RI (WST)

Flight distance from St Louis to Westerly (St. Louis Lambert International Airport – Westerly State Airport) is 999 miles / 1607 kilometers / 868 nautical miles. Estimated flight time is 2 hours 23 minutes.

Driving distance from St Louis (STL) to Westerly (WST) is 1122 miles / 1805 kilometers and travel time by car is about 20 hours 2 minutes.

Map of flight path and driving directions from St Louis to Westerly.

Shortest flight path between St. Louis Lambert International Airport (STL) and Westerly State Airport (WST).

How far is Westerly from St Louis?

There are several ways to calculate distances between St Louis and Westerly. Here are two common methods:

Vincenty's formula (applied above)
  • 998.658 miles
  • 1607.184 kilometers
  • 867.810 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
  • 996.286 miles
  • 1603.367 kilometers
  • 865.749 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 St. Louis Lambert International Airport
City: St Louis, MO
Country: United States Flag of United States
IATA Code: STL
ICAO Code: KSTL
Coordinates: 38°44′55″N, 90°22′12″W

B Westerly State Airport
City: Westerly, RI
Country: United States Flag of United States
IATA Code: WST
ICAO Code: KWST
Coordinates: 41°20′58″N, 71°48′12″W

Time difference and current local times

The time difference between St Louis and Westerly is 1 hour. Westerly is 1 hour ahead of St Louis.

Time Difference

St Louis, MO

 CDT

Westerly, RI

 EDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 151 kg (332 pounds).

Frequent Flyer Miles Calculator

St Louis (STL) → Westerly (WST).

Distance:
999
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
999

Round trip?