Air Miles Calculator

Distance between Duluth, MN (DLH) and Chicago, IL (ORD)

Distance from Duluth International Airport to O'Hare International Airport is 397 miles / 639 kilometers / 345 nautical miles.

Calculations with different methods

Vincenty's formula (applied above)
  • 397.127 miles
  • 639.113 kilometers
  • 345.094 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
  • 397.006 miles
  • 638.920 kilometers
  • 344.989 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 Duluth International Airport (DLH) to O'Hare International Airport (ORD) is 1 hour 15 minutes.

Time difference and current local times

There is no time difference between Duluth and Chicago.

Time Difference

Duluth
Chicago

Duluth, MN

 CST

Chicago, IL

 CST

Airport information


A Duluth International Airport
City: Duluth, MN
Country: United States Flag of United States
IATA Code: DLH
ICAO Code: KDLH
Coordinates: 46°50′31″N, 92°11′36″W

B 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

Map

Flight map from Duluth to Chicago.

Frequent Flyer Miles Calculator

Duluth (DLH) → Chicago (ORD).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
397
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
397

Round trip?