Brownsville/South Padre Island International to Abilene Regional BRO → ABI
408 nautical miles (470 statute miles) north on a straight line, true course 344°, about 341° magnetic at the departure end (variation 3E). At 120 knots that is 2 h 55 min at the quickest height in today's winds (4,500 ft, a 20-knot tailwind), arriving about 8:57 am CDT (13:57 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 TANGO 2W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground). Near the route, at the destination end.
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 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 (BRO, CRP, SAT, ABI). 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 | 180° at 21 kt | −20 kt | 19 °C | 140 kt | 2 h 55 min | 8:57 am CDT (13:57 UTC) |
| 6,500 ft | 180° at 21 kt | −20 kt | 17 °C | 140 kt | 2 h 55 min | 8:57 am CDT (13:57 UTC) |
| 8,500 ft | 190° at 15 kt | −13 kt | 15 °C | 133 kt | 3 h 04 min | 9:06 am CDT (14:06 UTC) |
| 10,500 ft | 200° at 12 kt | −10 kt | 12 °C | 130 kt | 3 h 08 min | 9:10 am CDT (14:10 UTC) |
| 12,500 ft | 210° at 11 kt | −7 kt | 8 °C | 127 kt | 3 h 13 min | 9:15 am CDT (14:15 UTC) |
| 14,500 ft | 220° at 11 kt | −6 kt | 3 °C | 126 kt | 3 h 14 min | 9:16 am CDT (14:16 UTC) |
| 16,500 ft | 230° at 11 kt | −5 kt | -2 °C | 125 kt | 3 h 16 min | 9:18 am CDT (14:18 UTC) |
| 18,000 ft FL180 | 230° at 12 kt | −4 kt | -5 °C | 124 kt | 3 h 17 min | 9:19 am CDT (14:19 UTC) |
| 24,000 ft FL240 | 220° at 12 kt | −6 kt | -14 °C | 126 kt | 3 h 14 min | 9:16 am CDT (14:16 UTC) |
| 30,000 ft FL300 | 250° at 12 kt | −1 kt | -29 °C | 121 kt | 3 h 22 min | 9:24 am CDT (14:24 UTC) |
| 34,000 ft FL340 | 280° at 10 kt | +5 kt | -40 °C | 115 kt | 3 h 33 min | 9:35 am CDT (14:35 UTC) |
| 39,000 ft FL390 | 360° at 19 kt | +18 kt | -51 °C | 102 kt | 4 h | 10:02 am CDT (15:02 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; 44 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° |
| SAT | used from 149 nm out; 51 nm from the line | 160/18 | 180/22 17° | 190/16 14° | 210/16 9° | 220/16 -5° | 200/11 -14° | 250/8 -29° | 330/8 -40° | 020/26 -51° |
| ABI | used from 299 nm out; 85 nm from the line | 200/30 19° | 220/12 16° | 220/11 9° | 230/15 -5° | 250/26 -15° | 250/39 -28° | 270/36 -38° | 280/30 -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 | ||||
| HRL Harlingen, TX | 20 nm out, 7 nm west of the line, tower | no report just now | 36 ft | ||||
| IKG Kingsville, TX | 100 nm out, 5 nm northwest of the line | no report just now | 130 ft | ||||
| BEA Beeville, TX | 149 nm out, 23 nm east of the line | no report just now | 272 ft | ||||
| PEZ Pleasanton, TX | 189 nm out, 5 nm west of the line | no report just now | 430 ft | ||||
| SKF San Antonio, TX | 219 nm out, 1 nm southeast of the line, tower | no report just now | 690 ft | ||||
| ERV Kerrville, TX | 259 nm out, 14 nm west of the line | no report just now | 1,616 ft | ||||
| AQO Llano, TX | 299 nm out, 21 nm east of the line | no report just now | 1,101 ft | ||||
| BBD Brady, TX | 328 nm out, 6 nm west of the line | no report just now | 1,827 ft | ||||
| COM Coleman, TX | 368 nm out, 4 nm northeast of the line | no report just now | 1,696 ft | ||||
| ABI Abilene, TX | destination | no report just now | 1,790 ft |
The highest airport on this list sits at 1,827 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At ABI when you get there the forecast at the estimated arrival, 8:57 am CDT (13:57 UTC)
ABI 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 13 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 8 nm from the route, at the departure end · security · until 1 January · ZHU
- 5/6914 South Padre Island, TX, Tuesday, May 6, 2025 Local 16 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 ABI 7:08 pm CDT (00:08 UTC) (civil twilight ends 7:33 pm CDT (00:33 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
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, Abilene Regional.