Cyril E King Airport to Corpus Christi International STT → CRP
1,878 nautical miles (2,161 statute miles) northwest on a straight line, true course 294°, about 307° magnetic at the departure end (variation 13W). At 120 knots that is 15 h 16 min at the quickest height in today's winds (4,500 ft, a 3-knot tailwind), arriving about 12:17 am CDT (05:17 UTC), after sunset at the destination. Right now STT is VFR, wind from the southeast (130°) at 10 knots; CRP is VFR, wind from the south-southeast (150°) at 10 knots. 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: 1 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
- SIGMET C21C: thunderstorms (a convective SIGMET) up to 42,000 ft, moving from the southeast at 10 knots, until 11:55 am AST (15:55 UTC). Near the route, 1638 nm along the route.
as issued
WSUS32 KKCI 121355 MKCC WST 121355 CONVECTIVE SIGMET 21C VALID UNTIL 1555Z TX CSTL WTRS FROM 70ESE PSX-120S LCH-190S LCH-90SE PSX-70ESE PSX AREA TS MOV FROM 14010KT. TOPS TO FL420.
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, 20 nm northeast, 8:23 am AST (12:23 UTC): a routine report with nothing remarked on. At the departure end, 20 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
- B763 at 9,000 ft, 14 nm south, 9:06 am AST (13:06 UTC): a broken layer up to 14,000 ft. 80 nm along the route, 14 nm south of the line.
as filed, and in English
SJU UA /OV SJU312023/TM 1306/FL090/TP B763/SK BKN-TOP 140
- Report
- a routine report filed through SJU
- Where
- 23 nm northwest (312°) of SJU
- Time
- 13:06 UTC
- Height
- at 9,000 ft
- Aircraft
- B763
- Sky
- a broken layer, tops 14,000 ft
- A321 at 36,000 ft, 50 nm north, 9:45 am AST (13:45 UTC): no turbulence. 459 nm along the route, 50 nm north of the line.
as filed, and in English
MBPV UA /OV PVN019016/TM 1345/FL360/TP A321/TB NEG
- Report
- a routine report filed through MBPV
- Where
- 16 nm north (019°) of PVN
- Time
- 13:45 UTC
- Height
- at 36,000 ft
- Aircraft
- A321
- Turbulence
- none
- C25B at 40,000 ft, 41 nm north, 7:12 am AST (11:12 UTC): no turbulence. 1049 nm along the route, 41 nm north of the line.
as filed, and in English
EYW UA /OV EYW315045/TM 1112/FL400/TP C25B/TB NEG
- Report
- a routine report filed through EYW
- Where
- 45 nm northwest (315°) of EYW
- Time
- 11:12 UTC
- Height
- at 40,000 ft
- Aircraft
- C25B
- Turbulence
- none
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 7 forecast points nearest it (MIA, EYW, PIE, MSY, LCH, PSX, CRP). 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 | 140° at 4 kt | −3 kt | 123 kt | 15 h 16 min | 12:17 am CDT (05:17 UTC) | |
| 6,500 ft | 150° at 3 kt | −2 kt | 17 °C | 122 kt | 15 h 24 min | 12:25 am CDT (05:25 UTC) |
| 8,500 ft | 150° at 1 kt | −1 kt | 14 °C | 121 kt | 15 h 31 min | 12:32 am CDT (05:32 UTC) |
| 10,500 ft | light and variable | 0 | 10 °C | 120 kt | 15 h 39 min | 12:40 am CDT (05:40 UTC) |
| 12,500 ft | light and variable | 0 | 7 °C | 120 kt | 15 h 39 min | 12:40 am CDT (05:40 UTC) |
| 14,500 ft | 290° at 3 kt | +3 kt | 2 °C | 117 kt | 16 h 03 min | 1:04 am CDT (06:04 UTC) |
| 16,500 ft | 280° at 5 kt | +5 kt | -2 °C | 115 kt | 16 h 20 min | 1:21 am CDT (06:21 UTC) |
| 18,000 ft FL180 | 280° at 6 kt | +6 kt | -6 °C | 114 kt | 16 h 28 min | 1:29 am CDT (06:29 UTC) |
| 24,000 ft FL240 | 270° at 10 kt | +9 kt | -16 °C | 111 kt | 16 h 55 min | 1:56 am CDT (06:56 UTC) |
| 30,000 ft FL300 | 290° at 17 kt | +17 kt | -32 °C | 103 kt | 18 h 14 min | 3:15 am CDT (08:15 UTC) |
| 34,000 ft FL340 | 290° at 20 kt | +20 kt | -41 °C | 100 kt | 18 h 47 min | 3:48 am CDT (08:48 UTC) |
| 39,000 ft FL390 | 300° at 18 kt | +16 kt | -52 °C | 104 kt | 18 h 03 min | 3:04 am CDT (08:04 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° |
| EYW | used from 849 nm out; 136 nm from the line | 080/9 | 050/5 18° | 070/5 13° | 060/6 9° | L/V -6° | 280/11 -17° | 260/18 -32° | 250/21 -41° | 260/21 -52° |
| PIE | used from 1248 nm out; 251 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° |
| MSY | used from 1348 nm out; 264 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° |
| LCH | used from 1598 nm out; 194 nm from the line | 170/21 | 160/23 18° | 170/13 13° | 170/6 8° | 300/12 -7° | 280/16 -14° | 320/27 -30° | 330/23 -41° | 340/38 -51° |
| PSX | used from 1648 nm out; 165 nm from the line | 160/24 | 190/17 17° | 200/10 15° | L/V 8° | 260/7 -5° | 220/10 -12° | 310/11 -30° | 320/13 -40° | 010/29 -51° |
| CRP | used from 1798 nm out; 55 nm from the line | 140/21 | 160/22 17° | 180/14 13° | 210/6 9° | 270/10 -5° | 200/8 -13° | L/V -29° | L/V -40° | 030/28 -51° |
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: scattered clouds at 2,900 feet, scattered clouds at 3,700 feet | from the southeast (130°) at 10 knots | 10+ mi | none | 23 ft | 9:53 am AST (13:53 UTC) |
| SJU San Juan, PR | 60 nm out, 18 nm south of the line, tower | VFR Sky: a few clouds at 2,500 feet, scattered clouds at 3,500 feet, scattered clouds at 4,500 feet | from the east (080°) at 12 knots | 10+ mi | none | 9 ft | 13:56 UTC |
| EYW Key West, FL | 1009 nm out, 19 nm north of the line, tower | VFR | from the northeast (050°) at 8 knots | 10+ mi | none | 3 ft | 13:53 UTC |
| RAS Port Aransas, TX | 1858 nm out, 6 nm north of the line | VFR | from the southeast (140°) at 9 knots | 10+ mi | none | 5 ft | 13:55 UTC |
| CRP Corpus Christi, TX | destination | VFR Sky: a few clouds at 1,900 feet, a few clouds at 4,700 feet, a broken layer at 23,000 feet | from the south-southeast (150°) at 10 knots | 10+ mi | 23,000 ft | 46 ft | 8:51 am CDT (13:51 UTC) |
The highest airport on this list sits at 46 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At CRP when you get there the forecast at the estimated arrival, 12:17 am CDT (05:17 UTC)
Wind from the southeast at 10 knots, visibility more than 6 miles, scattered clouds at 2,000 feet VFR
The whole forecast for CRP
- From Mon 7:00 am CDT (12:00 UTC): wind from the east-southeast at 6 knots, visibility more than 6 miles, scattered clouds at 2,000 feet, scattered clouds at 5,000 feet
- From Mon 10:00 am CDT (15:00 UTC): wind from the southeast at 14 knots, gusting to 22, visibility more than 6 miles, scattered clouds at 4,500 feet
- From Mon 9:00 pm CDT (02:00 UTC): wind from the southeast at 10 knots, visibility more than 6 miles, scattered clouds at 2,000 feet
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 16 nm from the route, at the departure end · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 18 December · ZSU
- 6/4508 CEIBA, PR 24 nm from the route, at the departure end · security · ZSU
- 6/5945 Key West, FL 11 nm from the route, 999 nm along the route · security · ZMA
- 6/0299 Key West, FL, Friday, June 26, 2026 through Saturday, October 17, 2026 Local 11 nm from the route, 999 nm along the route · security · until 17 October · ZMA
Daylight
Sunset at STT 5:59 pm AST (21:59 UTC), at CRP 7:03 pm CDT (00:03 UTC) (civil twilight ends 7:26 pm CDT (00:26 UTC)). At 120 knots the arrival at CRP is before sunrise there (7:28 am CDT (12:28 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







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, Corpus Christi International.
