New Orleans, Louisiana
KMSY Louis Armstrong New Orleans Intl
Louis Armstrong New Orleans Intl (KMSY) is a towered, public-use airport in New Orleans, Louisiana, at 3 ft MSL. It has 4 runways: 02/20 (7,002 by 150 ft, concrete), 11/29 (10,104 by 150 ft, concrete), H1 (50 by 50 ft, asphalt), H2 (50 by 50 ft, concrete).
FAA NASR data effective Oct 29, 2026. Not for navigation; verify with current FAA charts and the Chart Supplement.
Airport
At a glance
- Identifiers
- ICAO KMSY, FAA MSY
- Location
- New Orleans, Louisiana (Jefferson County). 10 NM W of the city center
- Elevation
- 3 ft MSL
- Position
- 29.9933° N, 90.2590° W
- Control tower
- Yes (ATCT-TRACON)
- Sectional chart
- New Orleans
- Magnetic variation
- 1° W (2020)
- Fuel
- 100LL, Jet A
- Ownership
- Publicly owned, open to the public
- Attendance
- Daily ALL
4 runways
Runways
| Runway | Length × width | Surface | Edge lights |
|---|---|---|---|
| 02/20 | 7,002 × 150 ft | Concrete, good condition | High intensity |
| 11/29 | 10,104 × 150 ft | Concrete, good condition | High intensity |
| H1 | 50 × 50 ft | Asphalt, fair condition | Not listed |
| H2 | 50 × 50 ft | Concrete, fair condition | Not listed |
Runway ends and traffic pattern
| End | Pattern | Glide slope lights | Instrument | Displaced threshold | Landing distance |
|---|---|---|---|---|---|
| 02 | Left traffic | 4-light PAPI, left | ILS/DME | None listed | 7,002 ft |
| 20 | Left traffic | 4-light PAPI, left | LOC/DME | None listed | 6,948 ft |
| 11 | Left traffic | 4-light PAPI, right | ILS/DME | None listed | 9,800 ft |
| 29 | Left traffic | 4-light PAPI, right | ILS/DME | 304 ft | 9,800 ft |
| H1 | Not stated | None listed | None listed | None listed | Not listed |
| H2 | Not stated | None listed | None listed | None listed | Not listed |
VHF
Frequencies
- ATIS
- 127.55
- "New Orleans". Hours 24
- UNICOM
- 122.95
- Tower
- 119.5
- "New Orleans". Hours 24
- Ground
- 121.9
- "New Orleans". Hours 24
- Clearance delivery
- 120.925
- "New Orleans". Hours 24
- Approach / departure
- 125.5
- "New Orleans". Sector WEST
- Approach / departure
- 133.15
- "New Orleans". Sector EAST
Weather station
- ASOS MSY
- No frequency listed
Before you go
Brief KMSY in Ascent EFB.
Current weather, NOTAMs and the airport diagram for Louis Armstrong New Orleans Intl, in the app on iPhone and iPad.
Not for navigation. Verify with current FAA charts and the Chart Supplement before flight.
Source: FAA NASR 28-day subscription, cycle effective Oct 29, 2026. Airport data changes every 28 days and NOTAMs can override it at any time.