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How far is Adak Island, AK, from Rockford, IL?

The distance between Rockford (Chicago Rockford International Airport) and Adak Island (Adak Airport) is 3934 miles / 6331 kilometers / 3418 nautical miles.

Chicago Rockford International Airport – Adak Airport

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3934
Miles
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6331
Kilometers
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3418
Nautical miles

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Distance from Rockford to Adak Island

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

Vincenty's formula (applied above)
  • 3933.638 miles
  • 6330.577 kilometers
  • 3418.238 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
  • 3922.652 miles
  • 6312.897 kilometers
  • 3408.691 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 Adak Island?

The estimated flight time from Chicago Rockford International Airport to Adak Airport is 7 hours and 56 minutes.

Flight carbon footprint between Chicago Rockford International Airport (RFD) and Adak Airport (ADK)

On average, flying from Rockford to Adak Island generates about 448 kg of CO2 per passenger, and 448 kilograms equals 988 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Rockford to Adak Island

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

Airport information

Origin Chicago Rockford International Airport
City: Rockford, IL
Country: United States Flag of United States
IATA Code: RFD
ICAO Code: KRFD
Coordinates: 42°11′43″N, 89°5′49″W
Destination Adak Airport
City: Adak Island, AK
Country: United States Flag of United States
IATA Code: ADK
ICAO Code: PADK
Coordinates: 51°52′40″N, 176°38′45″W