Air Miles Calculator

Distance between Chicago, IL (ORD) and Westerly, RI (WST)

Flight distance from Chicago to Westerly (Chicago O'Hare International Airport – Westerly State Airport) is 833 miles / 1341 kilometers / 724 nautical miles. Estimated flight time is 2 hours 4 minutes.

Driving distance from Chicago (ORD) to Westerly (WST) is 943 miles / 1517 kilometers and travel time by car is about 16 hours 51 minutes.

Map of flight path and driving directions from Chicago to Westerly.

Shortest flight path between Chicago O'Hare International Airport (ORD) and Westerly State Airport (WST).

How far is Westerly from Chicago?

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

Vincenty's formula (applied above)
  • 833.163 miles
  • 1340.847 kilometers
  • 723.999 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
  • 831.009 miles
  • 1337.379 kilometers
  • 722.127 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 Chicago O'Hare International Airport
City: Chicago, IL
Country: United States Flag of United States
IATA Code: ORD
ICAO Code: KORD
Coordinates: 41°58′42″N, 87°54′17″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 Chicago and Westerly is 1 hour. Westerly is 1 hour ahead of Chicago.

Time Difference

Chicago, IL

 CDT

Westerly, RI

 EDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 138 kg (304 pounds).

Frequent Flyer Miles Calculator

Chicago (ORD) → Westerly (WST).

Distance:
833
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
833

Round trip?