Air Miles Calculator

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

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

Calculations with different 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).

Flight duration

Estimated flight time from 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

Airport information


A 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

Map

Chicago to Adak Island flight map.

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?