Air Miles Calculator

Distance between St Louis, MO (STL) and Williston, ND (XWA)

Flight distance from St Louis to Williston (St. Louis Lambert International Airport – Williston Basin International Airport) is 937 miles / 1508 kilometers / 814 nautical miles. Estimated flight time is 2 hours 16 minutes.

Driving distance from St Louis (STL) to Williston (XWA) is 1256 miles / 2021 kilometers and travel time by car is about 20 hours 48 minutes.

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

Shortest flight path between St. Louis Lambert International Airport (STL) and Williston Basin International Airport (XWA).

How far is Williston from St Louis?

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

Vincenty's formula (applied above)
  • 937.108 miles
  • 1508.129 kilometers
  • 814.325 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
  • 936.205 miles
  • 1506.676 kilometers
  • 813.540 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 Williston Basin International Airport
City: Williston, ND
Country: United States Flag of United States
IATA Code: XWA
ICAO Code: KXWA
Coordinates: 48°15′30″N, 103°44′55″W

Time difference and current local times

The time difference between St Louis and Williston is 1 hour. Williston is 1 hour behind St Louis.

Time Difference

St Louis, MO

 CST

Williston, ND

 MST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 146 kg (323 pounds).

Frequent Flyer Miles Calculator

St Louis (STL) → Williston (XWA).

Distance:
937
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
937

Round trip?