How far is Alta from Rockford, IL?

The distance between Rockford (Chicago Rockford International Airport) and Alta (Alta Airport) is 3999 miles / 6436 kilometers / 3475 nautical miles.

Distance from Rockford to Alta

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

Vincenty's formula (applied above)

• 3999.088 miles
• 6435.908 kilometers
• 3475.112 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

• 3987.836 miles
• 6417.801 kilometers
• 3465.335 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 Alta?

The estimated flight time from Chicago Rockford International Airport to Alta Airport is 8 hours and 4 minutes.

What is the time difference between Rockford and Alta?

The time difference between Rockford and Alta is 7 hours. Alta is 7 hours ahead of Rockford.

Flight carbon footprint between Chicago Rockford International Airport (RFD) and Alta Airport (ALF)

On average, flying from Rockford to Alta generates about 456 kg of CO2 per passenger, and 456 kilograms equals 1 006 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Rockford to Alta

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

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	Alta Airport
City:	Alta
Country:	Norway
IATA Code:	ALF
ICAO Code:	ENAT
Coordinates:	69°58′33″N, 23°22′18″E