Air Miles Calculator

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

Distance from Chicago to Westerly (Westerly State Airport – O'Hare International Airport) is 833 miles / 1341 kilometers / 724 nautical miles.

Calculations with different 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).

Flight duration

Estimated flight time from O'Hare International Airport (ORD) to Westerly State Airport (WST) is 2 hours 4 minutes.

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
Westerly

Chicago, IL

 CDT

Westerly, RI

 EDT

Airport information


A 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

Map

Chicago to Westerly flight map.

Frequent Flyer Miles Calculator

Chicago (ORD) → Westerly (WST).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
833
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
833

Round trip?