Air Miles Calculator

Distance between New Orleans, LA (MSY) and Key West, FL (EYW)

Flight distance from New Orleans to Key West (Louis Armstrong New Orleans International Airport – Key West International Airport) is 643 miles / 1034 kilometers / 558 nautical miles. Estimated flight time is 1 hour 43 minutes.

Driving distance from New Orleans (MSY) to Key West (EYW) is 1032 miles / 1661 kilometers and travel time by car is about 18 hours 37 minutes.

Map of flight path and driving directions from New Orleans to Key West.

Shortest flight path between Louis Armstrong New Orleans International Airport (MSY) and Key West International Airport (EYW).

How far is Key West from New Orleans?

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

Vincenty's formula (applied above)
  • 642.695 miles
  • 1034.317 kilometers
  • 558.486 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
  • 642.685 miles
  • 1034.301 kilometers
  • 558.478 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 Key West International Airport
City: Key West, FL
Country: United States Flag of United States
IATA Code: EYW
ICAO Code: KEYW
Coordinates: 24°33′21″N, 81°45′34″W

Time difference and current local times

The time difference between New Orleans and Key West is 1 hour. Key West is 1 hour ahead of New Orleans.

Time Difference

New Orleans, LA

 CDT

Key West, FL

 EDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 118 kg (260 pounds).

Frequent Flyer Miles Calculator

New Orleans (MSY) → Key West (EYW).

Distance:
643
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
643

Round trip?