How far is Kos from Rockford, IL?

The distance between Rockford (Chicago Rockford International Airport) and Kos (Kos International Airport) is 5674 miles / 9132 kilometers / 4931 nautical miles.

Distance from Rockford to Kos

There are several ways to calculate the distance from Rockford to Kos. Here are two standard methods:

Vincenty's formula (applied above)

• 5674.066 miles
• 9131.523 kilometers
• 4930.628 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

• 5660.578 miles
• 9109.817 kilometers
• 4918.908 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 Rockford to Kos?

The estimated flight time from Chicago Rockford International Airport to Kos International Airport is 11 hours and 14 minutes.

What is the time difference between Rockford and Kos?

The time difference between Rockford and Kos is 8 hours. Kos is 8 hours ahead of Rockford.

Flight carbon footprint between Chicago Rockford International Airport (RFD) and Kos International Airport (KGS)

On average, flying from Rockford to Kos generates about 673 kg of CO2 per passenger, and 673 kilograms equals 1 483 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Rockford to Kos

See the map of the shortest flight path between Chicago Rockford International Airport (RFD) and Kos International Airport (KGS).

Airport information

Origin	Chicago Rockford International Airport
City:	Rockford, IL
Country:	United States
IATA Code:	RFD
ICAO Code:	KRFD
Coordinates:	42°11′43″N, 89°5′49″W

Destination	Kos International Airport
City:	Kos
Country:	Greece
IATA Code:	KGS
ICAO Code:	LGKO
Coordinates:	36°47′35″N, 27°5′30″E