Plan a flight · Sun 7:36 pm CDT (00:36 UTC)

Gulfport-Biloxi International to Austin-Bergstrom International GPT → AUS

446 nautical miles (513 statute miles) west on a straight line, true course 271°, about 273° magnetic at the departure end (variation 2W). At 120 knots that is 3 h 41 min at the quickest height in today's winds (4,500 ft, a 1-knot tailwind), arriving about 11:17 pm CDT (04:17 UTC), after sunset at the destination. Right now GPT is VFR, wind calm; AUS is VFR, wind from the south-southeast (150°) at 12 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: 26 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 GPT.

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

B739 at 32,000 ft, 41 nm northeast, 5:23 pm CDT (22:23 UTC): moderate chop turbulence, remarks: zhu. At the departure end, 41 nm northeast of the line.
as filed, and in English
```
MOB UA /OV SJI/TM 2223/FL320/TP B739/TB MOD CHOP/RM ZHU
```
Report
a routine report filed through MOB
Where
over SJI
Time
22:23 UTC
Height
at 32,000 ft
Aircraft
B739
Turbulence
moderate chop
Remarks
zhu
B789 at 27,000 ft, 41 nm south, 7:30 pm CDT (00:30 UTC): moderate clear-air turbulence, remarks: zhu. 198 nm along the route, 41 nm south of the line.
as filed, and in English
```
LFT UA /OV LLA270030/TM 0030/FL270/TP B789/TB MOD CAT/RM ZHU
```
Report
a routine report filed through LFT
Where
30 nm west (270°) of LLA
Time
00:30 UTC
Height
at 27,000 ft
Aircraft
B789
Turbulence
moderate clear-air turbulence
Remarks
zhu
B738 at 34,000 ft, 48 nm north, 5:07 pm CDT (22:07 UTC): light chop turbulence, remarks: zhu. 119 nm along the route, 48 nm north of the line.
as filed, and in English
```
HEZ UA /OV HEZ180025/TM 2207/FL340/TP B738/TB OCNL LGT CHOP/RM ZHU
```
Report
a routine report filed through HEZ
Where
25 nm south (180°) of HEZ
Time
22:07 UTC
Height
at 34,000 ft
Aircraft
B738
Turbulence
occasional light chop
Remarks
zhu
B737 at 28,000 ft, 40 nm south, 5:52 pm CDT (22:52 UTC): light to moderate turbulence above 28,000 ft, remarks: below 26,000 ft zhu. 218 nm along the route, 40 nm south of the line.
as filed, and in English
```
BPT UA /OV BPT109042/TM 2252/FL280/TP B737/TB INTMT LGT-MOD FL280 /RM BLO FL260. ZHU
```
Report
a routine report filed through BPT
Where
42 nm east (109°) of BPT
Time
22:52 UTC
Height
at 28,000 ft
Aircraft
B737
Turbulence
intermittent light to moderate FL280
Remarks
below 26,000 ft zhu
A320 at 24,000 ft, 21 nm south, 5:07 pm CDT (22:07 UTC): light chop turbulence, remarks: during the climb zhu. 327 nm along the route, 21 nm south of the line.
as filed, and in English
```
IAH UA /OV IAH/TM 2207/FL240/TP A320/TB OCNL LGT CHOP /RM DURC. ZHU
```
Report
a routine report filed through IAH
Where
over IAH
Time
22:07 UTC
Height
at 24,000 ft
Aircraft
A320
Turbulence
occasional light chop
Remarks
during the climb zhu

Winds aloft along the route, and the time en route the forecast for use 20:00–03:00 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 (MSY, LCH, HOU, CLL). 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	170° at 7 kt	−1 kt		121 kt	3 h 41 min	11:17 pm CDT (04:17 UTC)
6,500 ft	180° at 7 kt	0	16 °C	120 kt	3 h 43 min	11:19 pm CDT (04:19 UTC)
8,500 ft	180° at 10 kt	+1 kt	13 °C	119 kt	3 h 45 min	11:21 pm CDT (04:21 UTC)
10,500 ft	210° at 9 kt	+5 kt	10 °C	115 kt	3 h 53 min	11:29 pm CDT (04:29 UTC)
12,500 ft	240° at 9 kt	+8 kt	6 °C	112 kt	3 h 59 min	11:35 pm CDT (04:35 UTC)
14,500 ft	260° at 9 kt	+9 kt	2 °C	111 kt	4 h 01 min	11:37 pm CDT (04:37 UTC)
16,500 ft	280° at 10 kt	+10 kt	-1 °C	110 kt	4 h 03 min	11:39 pm CDT (04:39 UTC)
18,000 ft FL180	290° at 12 kt	+11 kt	-4 °C	109 kt	4 h 06 min	11:42 pm CDT (04:42 UTC)
24,000 ft FL240	290° at 16 kt	+15 kt	-14 °C	105 kt	4 h 15 min	11:51 pm CDT (04:51 UTC)
30,000 ft FL300	320° at 31 kt	+21 kt	-31 °C	99 kt	4 h 30 min	12:06 am CDT (05:06 UTC)
34,000 ft FL340	330° at 34 kt	+18 kt	-41 °C	102 kt	4 h 22 min	11:58 pm CDT (04:58 UTC)
39,000 ft FL390	330° at 38 kt	+20 kt	-53 °C	100 kt	4 h 28 min	12:04 am CDT (05:04 UTC)

Based on data from the 11th at 18:00 UTC; valid on the 12th at 00:00 UTC for use 20:00 to 03:00 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
MSY	used from 0 nm out; 45 nm from the line	L/V	020/6 18°	L/V 12°	300/11 7°	330/15 -4°	320/22 -16°	330/38 -32°	350/47 -42°	340/56 -52°
LCH	used from 149 nm out; 45 nm from the line	190/6	180/8 18°	170/13 12°	220/12 7°	290/10 -4°	280/15 -14°	320/30 -31°	320/32 -40°	320/39 -53°
HOU	used from 297 nm out; 40 nm from the line	160/18	160/14 17°	180/19 12°	190/11 8°	260/12 -4°	260/14 -13°	310/26 -30°	310/30 -40°	320/21 -52°
CLL	used from 347 nm out; 20 nm from the line	160/18	190/18 16°	200/19 12°	220/14 7°	260/18 -5°	250/20 -13°	290/29 -29°	290/31 -40°	300/22 -53°

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
GPT Gulfport, MS	departure	VFR	calm	10+ mi	none	28 ft	6:53 pm CDT (23:53 UTC)
HSA Bay St Louis, MS	20 nm out, 3 nm south of the line, tower	VFR	from the south-southwest (210°) at 4 knots	10+ mi	none	22 ft	23:50 UTC
HDC Hammond, LA	69 nm out, 7 nm north of the line, tower	VFR	from the south-southwest (200°) at 3 knots	10+ mi	none	46 ft	00:15 UTC
BTR Baton Rouge, LA	109 nm out, 8 nm north of the line, tower	VFR	from the west-southwest (240°) at 6 knots	10+ mi	none	69 ft	23:53 UTC
LFT Lafayette, LA	149 nm out, 12 nm south of the line, tower	VFR	from the south-southwest (200°) at 6 knots	10+ mi	none	40 ft	23:53 UTC
CWF Lake Charles, LA	208 nm out, 10 nm south of the line, tower	VFR	from the south-southwest (200°) at 6 knots	10+ mi	none	16 ft	23:45 UTC
BPT Beaumont/Port Arthur, TX	258 nm out, 24 nm south of the line, tower	VFR	from the southeast (140°) at 4 knots	10+ mi	none	14 ft	23:53 UTC
BMT Beaumont, TX	268 nm out, 17 nm south of the line	VFR	from the southeast (140°) at 3 knots	10+ mi	none	31 ft	00:15 UTC
CXO Houston, TX	327 nm out, 3 nm northwest of the line, tower	VFR	from the southeast (140°) at 9 knots	10+ mi	none	244 ft	23:53 UTC
CLL College Station, TX	377 nm out, 19 nm north of the line, tower	VFR	from the south-southeast (150°) at 7 knots	10+ mi	none	320 ft	23:53 UTC
GYB Giddings, TX	406 nm out, 6 nm southwest of the line	VFR	from the south (180°) at 3 knots	10+ mi	none	484 ft	00:15 UTC
AUS Austin, TX	destination	VFR Sky: a few clouds at 8,000 feet, a few clouds at 12,000 feet, a few clouds at 25,000 feet	from the south-southeast (150°) at 12 knots	10+ mi	none	541 ft	6:53 pm CDT (23:53 UTC)

The highest airport on this list sits at 541 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At AUS when you get there the forecast at the estimated arrival, 11:17 pm CDT (04:17 UTC)

Wind from the south-southeast at 6 knots, visibility more than 6 miles, scattered clouds at 1,500 feet VFR

The whole forecast for AUS

From Sun 7:00 pm CDT (00:00 UTC): wind from the south at 14 knots, visibility more than 6 miles, a few clouds at 6,000 feet, scattered clouds at 25,000 feet
From Sun 10:00 pm CDT (03:00 UTC): wind from the south-southeast at 6 knots, visibility more than 6 miles, scattered clouds at 1,500 feet
From Mon 7:00 am CDT (12:00 UTC): wind from the south-southeast at 3 knots, visibility more than 6 miles, a broken layer at 1,500 feet
From Mon 12:00 pm CDT (17:00 UTC): wind from the south at 11 knots, visibility more than 6 miles, a broken layer at 2,500 feet
From Mon 2:00 pm CDT (19:00 UTC): wind from the south at 13 knots, visibility more than 6 miles, a broken layer at 4,000 feet

The forecast for GPT, the departure

From Sun 7:00 pm CDT (00:00 UTC): wind light and variable, visibility more than 6 miles, a few clouds at 25,000 feet
From Mon 1:00 pm CDT (18:00 UTC): wind from the south at 6 knots, visibility more than 6 miles, clear skies

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

6/5849 Austin, TX, Friday, October 2, 2026 through Monday, October 12, 2026 UTC 6 nm from the route, at the destination end · drones kept away from a public gathering · until 12 October · ZHU

Daylight

Sunset at GPT 6:28 pm CDT (23:28 UTC), at AUS 7:03 pm CDT (00:03 UTC) (civil twilight ends 7:27 pm CDT (00:27 UTC)). At 120 knots the arrival at AUS is after sunset there (7:04 pm CDT (00:04 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 lower Mississippi valley · loop National Weather Service

Radar now, the southern Plains · 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: Gulfport-Biloxi International, Austin-Bergstrom International.