How far is Florence from Chicago, IL?

The distance between Chicago (Chicago O'Hare International Airport) and Florence (Florence Airport) is 4696 miles / 7557 kilometers / 4081 nautical miles.

Distance from Chicago to Florence

There are several ways to calculate the distance from Chicago to Florence. Here are two standard methods:

Vincenty's formula (applied above)

• 4695.825 miles
• 7557.198 kilometers
• 4080.561 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

• 4683.473 miles
• 7537.320 kilometers
• 4069.827 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 Florence?

The estimated flight time from Chicago O'Hare International Airport to Florence Airport is 9 hours and 23 minutes.

What is the time difference between Chicago and Florence?

The time difference between Chicago and Florence is 7 hours. Florence is 7 hours ahead of Chicago.

Flight carbon footprint between Chicago O'Hare International Airport (ORD) and Florence Airport (FLR)

On average, flying from Chicago to Florence generates about 544 kg of CO2 per passenger, and 544 kilograms equals 1 200 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Chicago to Florence

See the map of the shortest flight path between Chicago O'Hare International Airport (ORD) and Florence Airport (FLR).

Airport information

Origin	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

Destination	Florence Airport
City:	Florence
Country:	Italy
IATA Code:	FLR
ICAO Code:	LIRQ
Coordinates:	43°48′36″N, 11°12′18″E