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How far is Key West, FL, from Chicago, IL?

The distance between Chicago (Chicago O'Hare International Airport) and Key West (Key West International Airport) is 1251 miles / 2014 kilometers / 1087 nautical miles.

The driving distance from Chicago (ORD) to Key West (EYW) is 1551 miles / 2496 kilometers, and travel time by car is about 29 hours 32 minutes.

Chicago O'Hare International Airport – Key West International Airport

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1251
Miles
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2014
Kilometers
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1087
Nautical miles

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Distance from Chicago to Key West

There are several ways to calculate the distance from Chicago to Key West. Here are two standard 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 planet.

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).

How long does it take to fly from Chicago to Key West?

The estimated flight time from Chicago O'Hare International Airport to Key West International Airport is 2 hours and 52 minutes.

Flight carbon footprint between Chicago O'Hare International Airport (ORD) and Key West International Airport (EYW)

On average, flying from Chicago to Key West generates about 164 kg of CO2 per passenger, and 164 kilograms equals 361 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

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

See the map of the shortest flight path between Chicago O'Hare International Airport (ORD) and Key West International Airport (EYW).

Airport information

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