Air Miles Calculator

Distance between New Orleans, LA (MSY) and St Louis, MO (STL)

Flight distance from New Orleans to St Louis (Louis Armstrong New Orleans International Airport – St. Louis Lambert International Airport) is 604 miles / 971 kilometers / 524 nautical miles. Estimated flight time is 1 hour 38 minutes.

Driving distance from New Orleans (MSY) to St Louis (STL) is 677 miles / 1089 kilometers and travel time by car is about 11 hours 42 minutes.

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

Shortest flight path between Louis Armstrong New Orleans International Airport (MSY) and St. Louis Lambert International Airport (STL).

How far is St Louis from New Orleans?

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

Vincenty's formula (applied above)
  • 603.525 miles
  • 971.279 kilometers
  • 524.449 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
  • 604.967 miles
  • 973.600 kilometers
  • 525.702 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 Louis Armstrong New Orleans International Airport
City: New Orleans, LA
Country: United States Flag of United States
IATA Code: MSY
ICAO Code: KMSY
Coordinates: 29°59′36″N, 90°15′28″W

B 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

Time difference and current local times

There is no time difference between New Orleans and St Louis.

Time Difference

New Orleans, LA

 CST

St Louis, MO

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 113 kg (249 pounds).

Frequent Flyer Miles Calculator

New Orleans (MSY) → St Louis (STL).

Distance:
604
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
604

Round trip?