# Distance between Chicago, IL (MDW) and Westerly, RI (WST)

Flight distance from Chicago to Westerly (Chicago Midway International Airport – Westerly State Airport) is 826 miles / 1329 kilometers / 718 nautical miles. Estimated flight time is 2 hours 3 minutes.

Driving distance from Chicago (MDW) to Westerly (WST) is 925 miles / 1489 kilometers and travel time by car is about 16 hours 32 minutes.

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

Shortest flight path between Chicago Midway International Airport (MDW) 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)
• 825.967 miles
• 1329.266 kilometers
• 717.746 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
• 823.832 miles
• 1325.829 kilometers
• 715.890 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 Midway International Airport
City: Chicago, IL
Country: United States
IATA Code: MDW
ICAO Code: KMDW
Coordinates: 41°47′9″N, 87°45′8″W

B Westerly State Airport
City: Westerly, RI
Country: 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.

CDT

EDT

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 137 kg (303 pounds).

## Frequent Flyer Miles Calculator

Chicago (MDW) → Westerly (WST).

Distance:
826
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
826

Round trip?