Plan a flight · Mon 8:45 am AST (12:45 UTC)

Cyril E King Airport to Louis Armstrong New Orleans International STT → MSY

1,547 nautical miles (1,780 statute miles) northwest on a straight line, true course 302°, about 315° magnetic at the departure end (variation 13W). At 120 knots that is 13 h at the quickest height in today's winds (4,500 ft, a 1-knot headwind), arriving about 8:45 pm CDT (01:45 UTC), after sunset at the destination. Right now STT is VFR, wind from the east (100°) at 13 knots, gusting to 17; MSY is VFR, wind calm. For planning, not a briefing: the legal preflight briefing comes from Flight Service (1-800-WX-BRIEF) or the FAA's own tools. Airlines fly this pair: 2 flights in the DOT's last twelve reported months, the route's page.

The route the straight line, the warnings crossed, restrictions, pilot reports and the airports along the way · click a mark for its words

Green, blue, red and purple airport dots are the flying conditions reported there now (VFR, marginal VFR, IFR, low IFR); grey means no report. Red areas are SIGMETs, orange areas AIRMETs, hatched red areas temporary flight restrictions. Map tiles: OpenFreeMap, data © OpenStreetMap contributors.

Warnings the route crosses SIGMETs and AIRMETs whose area the line passes through or comes within 25 nm of

AIRMET SIERRA 1E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, mist, fog). Over the last 10 nm of the route.

A SIGMET warns of weather hazardous to all aircraft; an AIRMET of weather that matters to small aircraft and to flying without instruments. "From 60 to 180 nm out" is measured along the route from STT.

Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first

B738 at 36,000 ft, 13 nm northeast, 8:23 am AST (12:23 UTC): a routine report with nothing remarked on. At the departure end, 13 nm northeast of the line.
as filed, and in English
```
SJU UA /OV SJU044038/TM 1223/FL360/TP B738/SK TOPS FL400
```
Report
a routine report filed through SJU
Where
38 nm northeast (044°) of SJU
Time
12:23 UTC
Height
at 36,000 ft
Aircraft
B738
Sky
tops 40,000 ft
A20N at 37,000 ft, 34 nm northeast, 7:08 am AST (11:08 UTC): no turbulence. 649 nm along the route, 34 nm northeast of the line.
as filed, and in English
```
MYNN UA /OV ZQA113154/TM 1108/FL370/TP A20N/SK TOP 390-400/TB NEG
```
Report
a routine report filed through MYNN
Where
154 nm southeast (113°) of ZQA
Time
11:08 UTC
Height
at 37,000 ft
Aircraft
A20N
Sky
top from 39,000 ft to 40,000 ft
Turbulence
none
B738 at 36,000 ft, 18 nm northeast, 6:33 am AST (10:33 UTC): no turbulence. 679 nm along the route, 18 nm northeast of the line.
as filed, and in English
```
MYNN UA /OV ZQA118126/TM 1033/FL360/TP B738/TB NEG
```
Report
a routine report filed through MYNN
Where
126 nm southeast (118°) of ZQA
Time
10:33 UTC
Height
at 36,000 ft
Aircraft
B738
Turbulence
none
ASTR at 41,000 ft, 18 nm south, 8:24 am AST (12:24 UTC): no turbulence. 699 nm along the route, 18 nm south of the line.
as filed, and in English
```
MYNN UA /OV ZQA136110/TM 1224/FL410/TP ASTR/TB NEG
```
Report
a routine report filed through MYNN
Where
110 nm southeast (136°) of ZQA
Time
12:24 UTC
Height
at 41,000 ft
Aircraft
ASTR
Turbulence
none
B738 at 25,000 ft, 36 nm southwest, 8:30 am AST (12:30 UTC): no turbulence. 888 nm along the route, 36 nm southwest of the line.
as filed, and in English
```
MIA UA /OV ZBV180040/TM 1230/FL250/TP B738/TB NEG
```
Report
a routine report filed through MIA
Where
40 nm south (180°) of ZBV
Time
12:30 UTC
Height
at 25,000 ft
Aircraft
B738
Turbulence
none
A321 at 22,000 ft, 24 nm southwest, 7:28 am AST (11:28 UTC): no turbulence. 888 nm along the route, 24 nm southwest of the line.
as filed, and in English
```
MIA UA /OV ZBV170030/TM 1128/FL220/TP A321/TB NEG
```
Report
a routine report filed through MIA
Where
30 nm south (170°) of ZBV
Time
11:28 UTC
Height
at 22,000 ft
Aircraft
A321
Turbulence
none
SR22 descending, 15 nm south, 8:38 am AST (12:38 UTC): a broken layer above 800 ft. 968 nm along the route, 15 nm south of the line.
as filed, and in English
```
OPF UA /OV KOPF270002/TM 1238/FLDURD/TP SR22/SK BKN008
```
Report
a routine report filed through OPF
Where
2 nm west (270°) of KOPF
Time
12:38 UTC
Height
during the descent
Aircraft
SR22
Sky
a broken layer from 800 ft
C172 descending, 15 nm south, 8:27 am AST (12:27 UTC): a broken layer above 1,000 ft. 968 nm along the route, 15 nm south of the line.
as filed, and in English
```
OPF UA /OV KOPF270002/TM 1227/FLDURD/TP C172/SK BKN010
```
Report
a routine report filed through OPF
Where
2 nm west (270°) of KOPF
Time
12:27 UTC
Height
during the descent
Aircraft
C172
Sky
a broken layer from 1,000 ft
BCS3 at 18,000 ft, 13 nm north, 7:47 am AST (11:47 UTC): light to moderate turbulence. 968 nm along the route, 13 nm north of the line.
as filed, and in English
```
PBI UA /OV PBI200020/TM 1147/FL180/TP BCS3/TB LGT-MOD
```
Report
a routine report filed through PBI
Where
20 nm south (200°) of PBI
Time
11:47 UTC
Height
at 18,000 ft
Aircraft
BCS3
Turbulence
light to moderate
B38M at 21,000 ft, 33 nm south, 6:51 am AST (10:51 UTC): no turbulence, remarks: during the descent. 1048 nm along the route, 33 nm south of the line.
as filed, and in English
```
RSW UA /OV RSW180020/TM 1051/FL210/TP B38M/TB NEG/RM DURD
```
Report
a routine report filed through RSW
Where
20 nm south (180°) of RSW
Time
10:51 UTC
Height
at 21,000 ft
Aircraft
B38M
Turbulence
none
Remarks
during the descent
B789 at 38,000 ft, 41 nm southwest, 5:54 am AST (09:54 UTC): light to moderate chop turbulence. 1277 nm along the route, 41 nm southwest of the line.
as filed, and in English
```
SRQ UA /OV SRQ281174/TM 0954/FL380/TP B789/TB CONS LGT OCNL MOD CHOP
```
Report
a routine report filed through SRQ
Where
174 nm west (281°) of SRQ
Time
09:54 UTC
Height
at 38,000 ft
Aircraft
B789
Turbulence
continuous light occasional moderate chop
B737 at 34,000 ft, 19 nm southwest, 7:04 am AST (11:04 UTC): light chop turbulence. 1307 nm along the route, 19 nm southwest of the line.
as filed, and in English
```
SRQ UA /OV SRQ290200/TM 1104/FL340/TP B737/TB OCNL LGT CHOP
```
Report
a routine report filed through SRQ
Where
200 nm west (290°) of SRQ
Time
11:04 UTC
Height
at 34,000 ft
Aircraft
B737
Turbulence
occasional light chop
A20N at 26,000 ft, 5 nm west, 6:37 am AST (10:37 UTC): light chop turbulence. 1307 nm along the route, 5 nm west of the line.
as filed, and in English
```
SRQ UA /OV SRQ295200/TM 1037/FL260/TP A20N/TB OCNL LGT CHOP
```
Report
a routine report filed through SRQ
Where
200 nm northwest (295°) of SRQ
Time
10:37 UTC
Height
at 26,000 ft
Aircraft
A20N
Turbulence
occasional light chop
C25A at 41,000 ft, 36 nm northeast, 7:05 am AST (11:05 UTC): light chop turbulence, remarks: zhu. At the destination end, 36 nm northeast of the line.
as filed, and in English
```
HSA UA /OV KPCU314014/TM 1105/FL410/TP C25A/TB OCNL LGT CHOP/RM ZHU
```
Report
a routine report filed through HSA
Where
14 nm northwest (314°) of KPCU
Time
11:05 UTC
Height
at 41,000 ft
Aircraft
C25A
Turbulence
occasional light chop
Remarks
zhu

2 more routine reports are on the map.

Winds aloft along the route, and the time en route the forecast for use 08:00–15:00 UTC · at 120 knots true airspeed

The westbound cruising heights for this course (VFR: even thousands plus 500 ft; above 18,000 ft the forecast levels), with the wind averaged along the line from the 5 forecast points nearest it (MIA, PIE, TLH, MOB, MSY). A plus sign is a headwind, a minus sign a tailwind.

Height	Average wind	Head- or tailwind	Temperature	Ground speed	Time en route	Arrival
4,500 ft	350° at 2 kt	+1 kt		119 kt	13 h	8:45 pm CDT (01:45 UTC)
6,500 ft	350° at 3 kt	+2 kt	16 °C	118 kt	13 h 07 min	8:52 pm CDT (01:52 UTC)
8,500 ft	350° at 3 kt	+2 kt	14 °C	118 kt	13 h 07 min	8:52 pm CDT (01:52 UTC)
10,500 ft	320° at 2 kt	+2 kt	10 °C	118 kt	13 h 07 min	8:52 pm CDT (01:52 UTC)
12,500 ft	290° at 3 kt	+3 kt	7 °C	117 kt	13 h 13 min	8:58 pm CDT (01:58 UTC)
14,500 ft	290° at 5 kt	+5 kt	2 °C	115 kt	13 h 27 min	9:12 pm CDT (02:12 UTC)
16,500 ft	280° at 7 kt	+7 kt	-2 °C	113 kt	13 h 41 min	9:26 pm CDT (02:26 UTC)
18,000 ft FL180	280° at 9 kt	+9 kt	-6 °C	111 kt	13 h 56 min	9:41 pm CDT (02:41 UTC)
24,000 ft FL240	280° at 11 kt	+10 kt	-17 °C	110 kt	14 h 04 min	9:49 pm CDT (02:49 UTC)
30,000 ft FL300	300° at 18 kt	+18 kt	-32 °C	102 kt	15 h 10 min	10:55 pm CDT (03:55 UTC)
34,000 ft FL340	290° at 23 kt	+23 kt	-41 °C	97 kt	15 h 57 min	11:42 pm CDT (04:42 UTC)
39,000 ft FL390	290° at 20 kt	+19 kt	-52 °C	101 kt	15 h 19 min	11:04 pm CDT (04:04 UTC)

Based on data from the 12th at 06:00 UTC; valid on the 12th at 12:00 UTC for use 08:00 to 15:00 UTC; temperatures above 24,000 ft are below zero. Heights are above sea level; a height is left out when the forecast has no wind for it over most of the line (the ground is higher). Ground speed is the airspeed less the headwind; the time en route is for the straight line and ignores climb, descent and routing around weather.

The forecast points as issued

Point	From	3,000	6,000	9,000	12,000	18,000	24,000	30,000	34,000	39,000
MIA	used from 0 nm out; 937 nm from the line	L/V	L/V 17°	L/V 13°	L/V 8°	270/6 -6°	250/9 -17°	290/17 -32°	280/25 -41°	280/21 -52°
PIE	used from 1048 nm out; 71 nm from the line	360/10	340/12 18°	330/9 13°	290/12 8°	260/21 -7°	280/18 -18°	250/20 -33°	250/26 -41°	250/20 -51°
TLH	used from 1247 nm out; 140 nm from the line	340/23	350/26 17°	350/21 11°	300/13 6°	320/25 -6°	340/35 -16°	350/44 -32°	360/51 -42°	350/33 -52°
MOB	used from 1347 nm out; 121 nm from the line	L/V	L/V 18°	020/8 11°	L/V 6°	330/12 -5°	330/23 -17°	330/30 -32°	350/39 -41°	340/40 -53°
MSY	used from 1447 nm out; 75 nm from the line	150/9	140/8 18°	L/V 13°	L/V 6°	320/15 -5°	310/16 -16°	320/32 -31°	340/35 -40°	350/34 -52°

The weather now: both ends and the airports along the way public airports with a weather report within 25 nm of the line, one for each stretch

Airport	Where	Conditions	Wind	Visibility	Ceiling	Elevation	Reported
STT Charlotte Amalie, VI	departure	VFR Sky: a few clouds at 3,000 feet	from the east (100°) at 13 knots, gusting to 17	10+ mi	none	23 ft	7:53 am AST (11:53 UTC)
RVR Ceiba, PR	30 nm out, 25 nm southwest of the line, tower	no report just now				38 ft
MBGT Cockburn Town,	399 nm out, 18 nm south of the line, tower	VFR Sky: a few clouds at 1,800 feet	from the east (100°) at 8 knots	6+ mi	none	11 ft	12:00 UTC
MYMM Abrahams Bay,	519 nm out, 20 nm south of the line	no report just now				11 ft
MYRP Port Nelson,	639 nm out, 2 nm north of the line	no report just now				9 ft
MYNN Nassau,	808 nm out, 9 nm northeast of the line, tower	VFR Sky: a few clouds at 2,000 feet	variable at 2 knots	6+ mi	none	16 ft	12:00 UTC
FLL Fort Lauderdale, FL	958 nm out, 4 nm west of the line, tower	VFR Sky: a few clouds at 2,500 feet, a few clouds at 25,000 feet	from the north (350°) at 5 knots	10+ mi	none	65 ft	11:53 UTC
SRQ Sarasota/Bradenton, FL	1108 nm out, 16 nm north of the line, tower	VFR	from the northeast (040°) at 3 knots	10+ mi	none	29 ft	11:53 UTC
MSY New Orleans, LA	destination	VFR Sky: a few clouds at 25,000 feet	calm	10+ mi	none	3 ft	6:53 am CDT (11:53 UTC)

The highest airport on this list sits at 65 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At MSY when you get there the forecast at the estimated arrival, 8:45 pm CDT (01:45 UTC)

Wind from the southeast at 5 knots, visibility more than 6 miles, clear skies VFR

The whole forecast for MSY

From Mon 7:00 am CDT (12:00 UTC): wind from the southeast at 5 knots, visibility more than 6 miles, clear skies

The forecast for STT, the departure

From Mon 8:00 am AST (12:00 UTC): wind from the east at 8 knots, visibility more than 6 miles, showers nearby, scattered clouds at 3,000 feet
From Mon 9:00 am AST (13:00 UTC): wind from the east-southeast at 12 knots, visibility more than 6 miles, showers nearby, a few clouds at 2,500 feet, scattered clouds at 3,500 feet
From Mon 6:00 pm AST (22:00 UTC): wind from the east at 7 knots, visibility more than 6 miles, showers nearby, scattered clouds at 3,000 feet

Temporary flight restrictions on the line or within 25 nm of it

6/2698 VIEQUES, PR, Monday, January 19, 2026 through Friday, December 18, 2026 UTC 17 nm from the route, at the departure end · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 18 December · ZSU

Daylight

Sunset at STT 5:59 pm AST (21:59 UTC), at MSY 6:33 pm CDT (23:33 UTC) (civil twilight ends 6:57 pm CDT (23:57 UTC)). At 120 knots the arrival at MSY is after sunset there (6:33 pm CDT (23:33 UTC)).

Each restriction opens the FAA's own page with the exact area, heights and times. Ordinary notices to air missions (closed runways, lights out) are not shown: the FAA's notice search is not open to sites like this one at this time.

Radar and forecast charts for the regions crossed government pictures, the latest each time the page loads

Radar now, the Caribbean · loop National Weather Service

Radar now, the Southeast · loop National Weather Service

Radar now, the lower Mississippi valley · loop National Weather Service

Radar, the whole country · loop National Weather Service

Surface analysis now Weather Prediction Center

Forecast chart, 12 hours ahead Weather Prediction Center

Forecast chart, 24 hours ahead Weather Prediction Center

Sources: the Aviation Weather Center's data service (SIGMETs, AIRMETs, graphical AIRMETs, pilot reports, winds and temperatures aloft, observations and terminal forecasts), the National Weather Service radar, the Weather Prediction Center's charts, the FAA's temporary flight restriction list and shapes, and the FAA's airport file for the positions, elevations and magnetic variation. Fetched when the page is viewed and kept a few minutes. Each leg is the straight line between its two airports; airways, terrain and airspace are not considered. The airports in detail: Cyril E King Airport, Louis Armstrong New Orleans International.