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Chicago–Adak Island | ORD–ADK
Calculations with different methods
- 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).
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.
Adak Island, AK
Chicago to Adak Island flight map.
Frequent Flyer Miles Calculator
Chicago (ORD) → Adak Island (ADK).