Air Miles Calculator

Distance between New Orleans, LA (MSY) and Houston, TX (IAH)

Flight distance from New Orleans to Houston (Louis Armstrong New Orleans International Airport – Houston George Bush Intercontinental Airport) is 305 miles / 490 kilometers / 265 nautical miles. Estimated flight time is 1 hour 4 minutes.

Driving distance from New Orleans (MSY) to Houston (IAH) is 331 miles / 532 kilometers and travel time by car is about 6 hours 0 minutes.

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

Shortest flight path between Louis Armstrong New Orleans International Airport (MSY) and Houston George Bush Intercontinental Airport (IAH).

How far is Houston from New Orleans?

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

Vincenty's formula (applied above)
  • 304.778 miles
  • 490.493 kilometers
  • 264.845 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
  • 304.183 miles
  • 489.535 kilometers
  • 264.328 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 Houston George Bush Intercontinental Airport
City: Houston, TX
Country: United States Flag of United States
IATA Code: IAH
ICAO Code: KIAH
Coordinates: 29°59′3″N, 95°20′29″W

Time difference and current local times

There is no time difference between New Orleans and Houston.

Time Difference

New Orleans, LA

 CDT

Houston, TX

 CDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 70 kg (154 pounds).

Frequent Flyer Miles Calculator

New Orleans (MSY) → Houston (IAH).

Distance:
305
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
305

Round trip?