Distance From St Mary's Airport to Louis Armstrong New Orleans International Airport, KSM - MSY Distance

The distance from St Mary's Airport (KSM) to Louis Armstrong New Orleans International Airport (MSY) is 3866 miles or 6221 kilometers or 3357 nautical miles.

The distance shown below is direct flight distance between airports. Straight-line distance does not account for the surface between the two points. It is the distance a bird or airplane would travel between the two points when flying above the surface. The straight line distance is the direct route between two points, regardless of whether or not there are roads that connect them.

---

How long does it take to travel from St Mary's ( United States ) to New Orleans ( United States )?

A one-way nonstop (direct) flight between St Mary's and New Orleans takes around 8 hours 53 minutes.

Estimated flight time from St Mary's Airport, St Mary's, United States to Louis Armstrong New Orleans International Airport, New Orleans, United States is 8 hours 53 minutes under avarage conditions. Your actual flying time may vary depending on wind direction/speed or weather conditions. This calculation does not include the departure and landing times of the aircraft. In addition, it does not cover the person identity check, ticket check-in and baggage collection times at the airport.

Travel Distance Between the Airports • KSM - MSY

Kilometers		6221 km
Statute Miles		3866 miles
Nautical Miles		3357 nm
Avg. Time of Flight		8 hours 53 minutes

St Mary's Airport to Louis Armstrong New Orleans International Airport Flight Route Map - KSM to MSY Flight Path

Location of St Mary's Airport & Louis Armstrong New Orleans International Airport is given below.
Click the map to view St Mary's to New Orleans nonstop flight path and travel direction.

Click to see flight route on Google Map between St Mary's, United States and New Orleans, United States. .

Nonstop flight route between St Mary's, United States and New Orleans, United States.

Time Difference Between the Airports • KSM - MSY

Time difference between St Mary's (United States) and New Orleans (United States) is 4 Hours.
New Orleans time is 4 Hours ahead of St Mary's.

Location	Local Time
St Mary's (United States)	2025-01-02, 13:58:01 AKST
New Orleans (United States)	2025-01-02, 17:58:01 EST

Why should you arrive 3 hours before international flight? Flyers who are traveling to an international destination should arrive at the airport earlier than domestic flyers. This is because international flights can have additional check-in requirements, like passport verification, that need to be completed before you receive your boarding pass.

Origin

St Mary's Airport (KSM / PASM) St Mary's, United States

Destination

Louis Armstrong New Orleans International Airport (MSY / KMSY) New Orleans, United States