# Distance between Chicago, IL (ORD) and Key West, FL (EYW)

Flight distance from Chicago to Key West (Chicago O'Hare International Airport – Key West International Airport) is 1251 miles / 2014 kilometers / 1087 nautical miles. Estimated flight time is 2 hours 52 minutes.

Driving distance from Chicago (ORD) to Key West (EYW) is 1551 miles / 2496 kilometers and travel time by car is about 27 hours 38 minutes.

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

Shortest flight path between Chicago O'Hare International Airport (ORD) and Key West International Airport (EYW).

## How far is Key West from Chicago?

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

Vincenty's formula (applied above)
• 1251.408 miles
• 2013.946 kilometers
• 1087.444 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
• 1254.132 miles
• 2018.329 kilometers
• 1089.811 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
IATA Code: ORD
ICAO Code: KORD
Coordinates: 41°58′42″N, 87°54′17″W

B Key West International Airport
City: Key West, FL
Country: United States
IATA Code: EYW
ICAO Code: KEYW
Coordinates: 24°33′21″N, 81°45′34″W

## Time difference and current local times

The time difference between Chicago and Key West is 1 hour. Key West is 1 hour ahead of Chicago.

CDT

EDT

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 164 kg (361 pounds).

## Frequent Flyer Miles Calculator

Chicago (ORD) → Key West (EYW).

Distance:
1251
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
1251

Round trip?