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Flights between New Orleans (MSY) and St Louis (STL)

Louis Armstrong New Orleans International Airport, United States ↔ St. Louis Lambert International Airport, United States

A direct route between New Orleans and St Louis appears in the OpenFlights route network.

Confirming who flies MSY–STL

We're verifying which airlines currently operate MSY–STL. Current operators will appear here as our data refreshes.

Distance
974 km
605 miles
Est. flight time
1h 43m
great-circle estimate
Time difference
None
varies with DST
View this route on the live map →Search fares on Skyscanner ↗

Climate

Typical monthly temperatures in United States

Jan
4°
9/-1
70mm
Feb
6°
11/1
60mm
Mar
11°
16/6
75mm
Apr
17°
22/12
80mm
May
23°
28/18
95mm
Jun
28°
33/23
100mm
Jul
30°
35/25
95mm
Aug
29°
34/24
90mm
Sep
25°
30/20
80mm
Oct
18°
23/13
70mm
Nov
11°
16/6
70mm
Dec
5°
10/0
75mm

Mean °C (high/low below), avg. rainfall mm · country-level monthly normals, not airport-specific.

Typical monthly temperatures in United States

Jan
4°
9/-1
70mm
Feb
6°
11/1
60mm
Mar
11°
16/6
75mm
Apr
17°
22/12
80mm
May
23°
28/18
95mm
Jun
28°
33/23
100mm
Jul
30°
35/25
95mm
Aug
29°
34/24
90mm
Sep
25°
30/20
80mm
Oct
18°
23/13
70mm
Nov
11°
16/6
70mm
Dec
5°
10/0
75mm

Mean °C (high/low below), avg. rainfall mm · country-level monthly normals, not airport-specific.

Common questions

How far is New Orleans from St Louis?

New Orleans (MSY) and St Louis (STL) are around 974 km (605 miles) apart — an estimated 1h 43m by air. Distances and flight times are great-circle estimates.

What is the time difference between New Orleans and St Louis?

Both airports keep the same time — no time difference.

When is it warmest in United States?

Across United States, the warmest month on average is July, with mean temperatures around 30°C. These are country-level monthly climate normals, not airport-specific.

Distances and flight times are great-circle estimates, not booked block times.