Luis Munoz Marin International to Valley International SJU → HRL
1,814 nautical miles (2,087 statute miles) west on a straight line, true course 291°, about 302° magnetic at the departure end (variation 11W). At 120 knots that is 14 h 10 min at the quickest height in today's winds (4,500 ft, a 8-knot tailwind), arriving about 11:53 am CDT (16:53 UTC). Right now SJU is VFR, wind calm; HRL is VFR, wind from the east (100°) at 5 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: 10 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
No SIGMET or AIRMET covers any part of this route right now.
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 SJU.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
No pilot reports within 50 nautical miles of the line in the last three hours.
Winds aloft along the route, and the time en route the forecast for use 02:00–09:00 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 4 forecast points nearest it (MIA, EYW, MSY, BRO). 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 9 kt | −8 kt | 128 kt | 14 h 10 min | 11:53 am CDT (16:53 UTC) | |
| 6,500 ft | 140° at 8 kt | −7 kt | 16 °C | 127 kt | 14 h 17 min | 12:00 pm CDT (17:00 UTC) |
| 8,500 ft | 140° at 6 kt | −5 kt | 14 °C | 125 kt | 14 h 31 min | 12:14 pm CDT (17:14 UTC) |
| 10,500 ft | 130° at 4 kt | −3 kt | 12 °C | 123 kt | 14 h 45 min | 12:28 pm CDT (17:28 UTC) |
| 12,500 ft | 110° at 2 kt | −2 kt | 8 °C | 122 kt | 14 h 52 min | 12:35 pm CDT (17:35 UTC) |
| 14,500 ft | light and variable | 0 | 3 °C | 120 kt | 15 h 07 min | 12:50 pm CDT (17:50 UTC) |
| 16,500 ft | 250° at 2 kt | +1 kt | -2 °C | 119 kt | 15 h 15 min | 12:58 pm CDT (17:58 UTC) |
| 18,000 ft FL180 | 260° at 3 kt | +2 kt | -5 °C | 118 kt | 15 h 22 min | 1:05 pm CDT (18:05 UTC) |
| 24,000 ft FL240 | 260° at 7 kt | +6 kt | -16 °C | 114 kt | 15 h 55 min | 1:38 pm CDT (18:38 UTC) |
| 30,000 ft FL300 | 270° at 2 kt | +1 kt | -31 °C | 119 kt | 15 h 15 min | 12:58 pm CDT (17:58 UTC) |
| 34,000 ft FL340 | 170° at 4 kt | −2 kt | -41 °C | 122 kt | 14 h 52 min | 12:35 pm CDT (17:35 UTC) |
| 39,000 ft FL390 | 210° at 7 kt | 0 | -52 °C | 120 kt | 15 h 07 min | 12:50 pm CDT (17:50 UTC) |
Based on data from the 12th at 00:00 UTC; valid on the 12th at 06:00 UTC for use 02:00 to 09:00 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; 884 nm from the line | 150/7 | 140/5 17° | 160/5 14° | L/V 9° | 230/8 -5° | 230/8 -17° | 150/11 -32° | 150/25 -41° | 180/29 -51° |
| EYW | used from 698 nm out; 240 nm from the line | 110/11 | 110/10 17° | 110/7 14° | 080/6 9° | L/V -5° | 260/7 -16° | 280/12 -32° | 300/16 -42° | 270/12 -52° |
| MSY | used from 1296 nm out; 325 nm from the line | 110/5 | 150/6 19° | L/V 12° | 310/5 7° | 310/13 -4° | 290/20 -16° | 330/36 -31° | 330/37 -41° | 350/43 -52° |
| BRO | used from 1495 nm out; 279 nm from the line | 150/22 | 160/18 18° | 160/13 14° | 150/9 10° | 050/5 -3° | L/V -15° | 100/13 -29° | 120/15 -40° | 080/9 -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 |
|---|---|---|---|---|---|---|---|
| SJU San Juan, PR | departure | VFR Sky: scattered clouds at 2,400 feet | calm | 10+ mi | none | 9 ft | 9:56 pm AST (01:56 UTC) |
| BQN Aguadilla, PR | 60 nm out, 19 nm southwest of the line, tower | VFR | from the southeast (130°) at 4 knots | 10+ mi | none | 237 ft | 01:50 UTC |
| MYIG Matthew Town, | 458 nm out, 1 nm west of the line | no report just now | 17 ft | ||||
| BRO Brownsville, TX | 1794 nm out, 18 nm southwest of the line, tower | VFR Sky: scattered clouds at 3,600 feet, overcast at 5,000 feet | from the east-southeast (120°) at 8 knots | 10+ mi | 5,000 ft | 22 ft | 01:53 UTC |
| HRL Harlingen, TX | destination | VFR Sky: scattered clouds at 5,000 feet | from the east (100°) at 5 knots | 10+ mi | none | 36 ft | 8:52 pm CDT (01:52 UTC) |
The highest airport on this list sits at 237 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At HRL when you get there the forecast at the estimated arrival, 11:53 am CDT (16:53 UTC)
Wind from the southeast at 14 knots, gusting to 22, visibility more than 6 miles, scattered clouds at 4,500 feet VFR
The whole forecast for HRL
- From Sun 7:00 pm CDT (00:00 UTC): wind from the east at 13 knots, visibility more than 6 miles, a few clouds at 5,000 feet
- From Sun 8:00 pm CDT (01:00 UTC): wind from the southeast at 8 knots, visibility more than 6 miles, a few clouds at 5,000 feet
- From Mon 11:00 am CDT (16:00 UTC): wind from the southeast at 14 knots, gusting to 22, visibility more than 6 miles, scattered clouds at 4,500 feet
The forecast for SJU, the departure
- From Sun 10:00 pm AST (02:00 UTC): wind from the east-southeast at 6 knots, visibility more than 6 miles, light rain showers, scattered clouds at 2,500 feet, scattered clouds at 5,000 feet
- From Mon 10:00 am AST (14:00 UTC): wind from the east at 11 knots, visibility more than 6 miles, showers nearby, a few clouds at 2,500 feet, scattered clouds at 4,000 feet
- From Mon 1:00 pm AST (17:00 UTC): wind from the east at 13 knots, gusting to 20, visibility more than 6 miles, light rain showers, thunderstorms nearby, scattered clouds at 2,500 feet (thunderheads), a broken layer at 5,000 feet
- From Mon 7:00 pm AST (23:00 UTC): wind from the east at 5 knots, visibility more than 6 miles, showers nearby, scattered clouds at 3,000 feet, scattered clouds at 6,000 feet
Temporary flight restrictions on the line or within 25 nm of it
- 6/4508 CEIBA, PR 24 nm from the route, at the departure end · security · ZSU
- 5/6914 South Padre Island, TX, Tuesday, May 6, 2025 Local 5 nm from the route, at the destination end · security · ended 6 May · ZHU
- 5/3679 Brownsville, TX, Thursday, January 1, 2026 through Friday, January 1, 2027 Local 7 nm from the route, at the destination end · security · until 1 January · ZHU
- 5/3678 Brownsville, TX, Thursday, January 1, 2026 through Friday, January 1, 2027 Local 11 nm from the route, at the destination end · security · until 1 January · ZHU
Daylight
Sunset at SJU 6:03 pm AST (22:03 UTC), at HRL 7:05 pm CDT (00:05 UTC) (civil twilight ends 7:29 pm CDT (00:29 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: Luis Munoz Marin International, Valley International.