Air Miles Calculator

Distance between Chicago, IL (ORD) and Adak Island, AK (ADK)

Distance from Chicago to Adak Island (Chicago O'Hare International Airport – Adak Airport) is 3989 miles / 6419 kilometers / 3466 nautical miles.

How far is Adak Island from Chicago?

There are several ways to calculate distances between Chicago and Adak Island. Here are two common methods:

Vincenty's formula (applied above)
  • 3988.817 miles
  • 6419.379 kilometers
  • 3466.188 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.

Haversine formula
  • 3977.716 miles
  • 6401.513 kilometers
  • 3456.540 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).

Flight duration

Estimated flight time from Chicago O'Hare International Airport (ORD) to Adak Airport (ADK) is 8 hours 3 minutes.

Time difference and current local times

The time difference between Chicago and Adak Island is 4 hours. Adak Island is 4 hours behind Chicago.

Time Difference

Chicago
Adak Island

Chicago, IL

 CDT

Adak Island, AK

 HDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 461 kg (1 017 pounds).

Airport information


A 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

B 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

Chicago to Adak Island flight path

Shortest flight path between Chicago O'Hare International Airport (ORD) and Adak Airport (ADK).

Frequent Flyer Miles Calculator

Chicago (ORD) → Adak Island (ADK).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
3989
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
3989

Round trip?