Air Miles Calculator

Distance between St Louis, MO (STL) and Sioux City, IA (SUX)

Flight distance from St Louis to Sioux City (St. Louis Lambert International Airport – Sioux Gateway Airport) is 404 miles / 651 kilometers / 351 nautical miles. Estimated flight time is 1 hour 15 minutes.

Driving distance from St Louis (STL) to Sioux City (SUX) is 505 miles / 813 kilometers and travel time by car is about 8 hours 44 minutes.

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

Shortest flight path between St. Louis Lambert International Airport (STL) and Sioux Gateway Airport (SUX).

How far is Sioux City from St Louis?

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

Vincenty's formula (applied above)
  • 404.412 miles
  • 650.838 kilometers
  • 351.424 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
  • 403.998 miles
  • 650.172 kilometers
  • 351.065 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 St. Louis Lambert International Airport
City: St Louis, MO
Country: United States Flag of United States
IATA Code: STL
ICAO Code: KSTL
Coordinates: 38°44′55″N, 90°22′12″W

B 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

Time difference and current local times

There is no time difference between St Louis and Sioux City.

Time Difference

St Louis, MO

 CST

Sioux City, IA

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 85 kg (186 pounds).

Frequent Flyer Miles Calculator

St Louis (STL) → Sioux City (SUX).

Distance:
404
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
404

Round trip?