Brownsville/South Padre Island International to Louisville Muhammad Ali International BRO → SDF
945 nautical miles (1,088 statute miles) northeast on a straight line, true course 036°, about 033° magnetic at the departure end (variation 3E). At 120 knots that is 7 h 10 min at the quickest height in today's winds (3,500 ft, a 12-knot tailwind), arriving about 4:20 pm EDT (20:20 UTC). 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 route from 418 to 418 nm out.
- AIRMET SIERRA 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the last 99 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 BRO.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
Not fetched just now.
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 eastbound cruising heights for this course (VFR: odd thousands plus 500 ft; above 18,000 ft the forecast levels), with the wind averaged along the line from the 11 forecast points nearest it (BRO, CRP, PSX, HOU, LCH, SHV, JAN, MEM, BNA, EVV, LOU). A plus sign is a headwind, a minus sign a tailwind.
| Height | Average wind | Head- or tailwind | Temperature | Ground speed | Time en route | Arrival |
|---|---|---|---|---|---|---|
| 3,500 ft | 210° at 12 kt | −12 kt | 132 kt | 7 h 10 min | 4:20 pm EDT (20:20 UTC) | |
| 5,500 ft | 220° at 12 kt | −12 kt | 132 kt | 7 h 10 min | 4:20 pm EDT (20:20 UTC) | |
| 7,500 ft | 230° at 10 kt | −10 kt | 14 °C | 130 kt | 7 h 16 min | 4:26 pm EDT (20:26 UTC) |
| 9,500 ft | 250° at 9 kt | −8 kt | 11 °C | 128 kt | 7 h 23 min | 4:33 pm EDT (20:33 UTC) |
| 11,500 ft | 260° at 7 kt | −6 kt | 8 °C | 126 kt | 7 h 30 min | 4:40 pm EDT (20:40 UTC) |
| 13,500 ft | 270° at 9 kt | −6 kt | 4 °C | 126 kt | 7 h 30 min | 4:40 pm EDT (20:40 UTC) |
| 15,500 ft | 280° at 11 kt | −6 kt | -1 °C | 126 kt | 7 h 30 min | 4:40 pm EDT (20:40 UTC) |
| 17,500 ft | 280° at 14 kt | −7 kt | -5 °C | 127 kt | 7 h 26 min | 4:36 pm EDT (20:36 UTC) |
| 18,000 ft FL180 | 280° at 14 kt | −7 kt | -6 °C | 127 kt | 7 h 26 min | 4:36 pm EDT (20:36 UTC) |
| 24,000 ft FL240 | 270° at 16 kt | −9 kt | -16 °C | 129 kt | 7 h 20 min | 4:30 pm EDT (20:30 UTC) |
| 30,000 ft FL300 | 310° at 26 kt | −1 kt | -31 °C | 121 kt | 7 h 49 min | 4:59 pm EDT (20:59 UTC) |
| 34,000 ft FL340 | 310° at 31 kt | +2 kt | -40 °C | 118 kt | 8 h 01 min | 5:11 pm EDT (21:11 UTC) |
| 39,000 ft FL390 | 330° at 35 kt | +13 kt | -51 °C | 107 kt | 8 h 50 min | 6:00 pm EDT (22:00 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| BRO | used from 0 nm out; 25 nm from the line | 160/15 | 160/15 18° | 170/11 14° | 150/7 9° | L/V -4° | 170/6 -15° | 100/15 -29° | 100/14 -41° | 040/26 -51° |
| CRP | used from 50 nm out; 70 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° |
| PSX | used from 99 nm out; 70 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° |
| HOU | used from 199 nm out; 48 nm from the line | 180/22 | 180/20 16° | 170/7 15° | L/V 8° | 220/11 -6° | 260/15 -13° | 310/20 -30° | 320/20 -40° | 350/32 -51° |
| LCH | used from 298 nm out; 29 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° |
| SHV | used from 398 nm out; 84 nm from the line | 210/20 | 210/20 18° | 230/20 11° | 240/16 7° | 270/17 -7° | 250/11 -15° | 300/34 -30° | 310/34 -40° | 320/36 -51° |
| JAN | used from 497 nm out; 72 nm from the line | 240/10 | 260/15 18° | 280/10 11° | 290/6 6° | 290/15 -5° | 300/15 -17° | 320/35 -30° | 330/38 -40° | 330/39 -51° |
| MEM | used from 597 nm out; 57 nm from the line | 250/19 | 260/19 17° | 270/20 12° | 270/16 6° | 270/21 -6° | 290/27 -17° | 300/37 -30° | 300/49 -40° | 310/40 -51° |
| BNA | used from 746 nm out; 71 nm from the line | 300/20 | 300/14 15° | 300/14 10° | 300/13 4° | 310/22 -5° | 280/24 -18° | 310/37 -33° | 310/50 -41° | 320/49 -51° |
| EVV | used from 846 nm out; 59 nm from the line | 270/25 | 290/17 15° | 260/10 8° | 270/16 5° | 280/29 -6° | 280/33 -19° | 290/38 -33° | 300/53 -41° | 310/54 -51° |
| LOU | used from 895 nm out; 30 nm from the line | 300/16 | 310/19 15° | 310/17 9° | 300/15 4° | 300/26 -6° | 280/34 -19° | 290/30 -34° | 310/49 -42° | 310/58 -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 |
|---|---|---|---|---|---|---|---|
| BRO Brownsville, TX | departure | no report just now | 22 ft | ||||
| PIL Port Isabel, TX | 20 nm out, 7 nm west of the line | no report just now | 18 ft | ||||
| GLS Galveston, TX | 239 nm out, 11 nm northwest of the line, tower | no report just now | 5 ft | ||||
| BPT Beaumont/Port Arthur, TX | 298 nm out, 4 nm northeast of the line, tower | no report just now | 14 ft | ||||
| AEX Alexandria, LA | 418 nm out, 9 nm southeast of the line, tower | no report just now | 88 ft | ||||
| GLH Greenville, MS | 567 nm out, 11 nm northwest of the line, tower | no report just now | 130 ft | ||||
| GWO Greenwood, MS | 597 nm out, 24 nm southeast of the line, tower | no report just now | 162 ft | ||||
| MKL Jackson, TN | 726 nm out, 13 nm northwest of the line, tower | no report just now | 434 ft | ||||
| CKV Clarksville, TN | 826 nm out, 4 nm south of the line | no report just now | 549 ft | ||||
| JQD Hartford, KY | 875 nm out, 11 nm northwest of the line | no report just now | 537 ft | ||||
| SDF Louisville, KY | destination | no report just now | 500 ft |
The highest airport on this list sits at 549 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At SDF when you get there the forecast at the estimated arrival, 4:20 pm EDT (20:20 UTC)
SDF has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 5/3679 Brownsville, TX, Thursday, January 1, 2026 through Friday, January 1, 2027 Local 7 nm from the route, at the departure end · security · until 1 January · ZHU
- 5/3678 Brownsville, TX, Thursday, January 1, 2026 through Friday, January 1, 2027 Local 4 nm from the route, at the departure end · security · until 1 January · ZHU
- 5/6914 South Padre Island, TX, Tuesday, May 6, 2025 Local 6 nm from the route, at the departure end · security · ended 6 May · ZHU
Daylight
Sunset at BRO 7:04 pm CDT (00:04 UTC), at SDF 7:09 pm EDT (23:09 UTC) (civil twilight ends 7:36 pm EDT (23:36 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: Brownsville/South Padre Island International, Louisville Muhammad Ali International.