Air Miles Calculator

Distance between Sioux City, IA (SUX) and Duluth, MN (DLH)

Flight distance from Sioux City to Duluth (Sioux Gateway Airport – Duluth International Airport) is 370 miles / 595 kilometers / 321 nautical miles. Estimated flight time is 1 hour 11 minutes.

Driving distance from Sioux City (SUX) to Duluth (DLH) is 439 miles / 707 kilometers and travel time by car is about 8 hours 3 minutes.

Map of flight path and driving directions from Sioux City to Duluth.

Shortest flight path between Sioux Gateway Airport (SUX) and Duluth International Airport (DLH).

How far is Duluth from Sioux City?

There are several ways to calculate distances between Sioux City and Duluth. Here are two common methods:

Vincenty's formula (applied above)
  • 369.577 miles
  • 594.776 kilometers
  • 321.153 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
  • 369.420 miles
  • 594.523 kilometers
  • 321.017 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).

Airport information


A Sioux Gateway Airport
City: Sioux City, IA
Country: United States Flag of United States
IATA Code: SUX
ICAO Code: KSUX
Coordinates: 42°24′9″N, 96°23′3″W

B 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

Time difference and current local times

There is no time difference between Sioux City and Duluth.

Time Difference

Sioux City, IA

 CST

Duluth, MN

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 79 kg (175 pounds).

Frequent Flyer Miles Calculator

Sioux City (SUX) → Duluth (DLH).

Distance:
370
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
370

Round trip?