# 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
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
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.

CST

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?