Air Miles Calculator

Distance between Chicago, IL (ORD) and Unalaska, AK (DUT)

Distance from Chicago to Unalaska (Unalaska Airport – O'Hare International Airport) is 3547 miles / 5708 kilometers / 3082 nautical miles.

Calculations with different methods

Vincenty's formula (applied above)
  • 3546.893 miles
  • 5708.170 kilometers
  • 3082.165 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
  • 3537.053 miles
  • 5692.335 kilometers
  • 3073.615 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 Unalaska Airport (DUT) is 7 hours 12 minutes.

Time difference and current local times

The time difference between Chicago and Unalaska is 4 hours. Unalaska is 4 hours behind Chicago.

Time Difference

Chicago
Unalaska

Chicago, IL

 CDT

Unalaska, 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 Unalaska Airport
City: Unalaska, AK
Country: United States Flag of United States
IATA Code: DUT
ICAO Code: PADU
Coordinates: 53°54′0″N, 166°32′38″W

Map

Chicago to Unalaska flight map.

Frequent Flyer Miles Calculator

Chicago (ORD) → Unalaska (DUT).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
3547
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
3547

Round trip?