Plan a flight · Mon 7:56 am CDT (12:56 UTC)

San Antonio International to Lafayette Rgnl/Paul Fournet Field SAT → LFT

340 nautical miles (391 statute miles) east on a straight line, true course 082°, about 078° magnetic at the departure end (variation 4E). At 120 knots that is 2 h 32 min at the quickest height in today's winds (24,000 ft, a 14-knot tailwind), arriving about 10:28 am CDT (15:28 UTC). Right now SAT is marginal VFR, wind from the east-southeast (110°) at 5 knots; LFT is VFR, wind calm. 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

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 last 30 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 SAT.

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

E45X at 32,000 ft, 33 nm north, 7:05 am CDT (12:05 UTC): moderate chop turbulence, remarks: zhu. 50 nm along the route, 33 nm north of the line.
as filed, and in English
```
AUS UA /OV KCWK090015/TM 1205/FL320/TP E45X/TB MOD CHOP/RM ZHU
```
Report
a routine report filed through AUS
Where
15 nm east (090°) of KCWK
Time
12:05 UTC
Height
at 32,000 ft
Aircraft
E45X
Turbulence
moderate chop
Remarks
zhu
A320 at 21,000 ft, 11 nm south, 5:45 am CDT (10:45 UTC): moderate chop turbulence, remarks: zhu. 60 nm along the route, 11 nm south of the line.
as filed, and in English
```
SAT UA /OV SAT090060/TM 1045/FL210/TP A320/TB OCNL MOD CHOP/RM ZHU
```
Report
a routine report filed through SAT
Where
60 nm east (090°) of SAT
Time
10:45 UTC
Height
at 21,000 ft
Aircraft
A320
Turbulence
occasional moderate chop
Remarks
zhu
B737 at 2,000 ft, 7 nm north, 7:15 am CDT (12:15 UTC): overcast from 2,000 ft to 3,800 ft. At the departure end, 7 nm north of the line.
as filed, and in English
```
SAT UA /OV SAT/TM 1215/FL020/TP B737/SK OVC020 TOP038
```
Report
a routine report filed through SAT
Where
over SAT
Time
12:15 UTC
Height
at 2,000 ft
Aircraft
B737
Sky
overcast from 2,000 ft, tops 3,800 ft
B737 at 1,800 ft, 7 nm north, 6:18 am CDT (11:18 UTC): remarks: KSAT base 1,800 ft, on top 3,500 ft. At the departure end, 7 nm north of the line.
as filed, and in English
```
SAT UA /OV SAT/TM 1118/FL018/TP B737/RM KSAT BASE 018, ON TOP 035
```
Report
a routine report filed through SAT
Where
over SAT
Time
11:18 UTC
Height
at 1,800 ft
Aircraft
B737
Remarks
KSAT base 1,800 ft, on top 3,500 ft
A320 at 2,300 ft, 7 nm north, 5:37 am CDT (10:37 UTC): remarks: KSAT base 2,300 ft, on top 4,000 ft. At the departure end, 7 nm north of the line.
as filed, and in English
```
SAT UA /OV SAT/TM 1037/FL023/TP A320/RM KSAT BASE 023, ON TOP 040
```
Report
a routine report filed through SAT
Where
over SAT
Time
10:37 UTC
Height
at 2,300 ft
Aircraft
A320
Remarks
KSAT base 2,300 ft, on top 4,000 ft
B737 at 2,000 ft, 33 nm north, 7:25 am CDT (12:25 UTC): remarks: B020. 50 nm along the route, 33 nm north of the line.
as filed, and in English
```
AUS UA /OV 1SW/TM 1225/FL020/TP B737/RM B020
```
Report
a routine report filed through AUS
Where
over 1SW
Time
12:25 UTC
Height
at 2,000 ft
Aircraft
B737
Remarks
B020
B738 at 23,000 ft, 33 nm north, 7:14 am CDT (12:14 UTC): light chop turbulence, remarks: zhu. 50 nm along the route, 33 nm north of the line.
as filed, and in English
```
AUS UA /OV KCWK090040/TM 1214/FL230/TP B738/TB OCNL LGT CHOP/RM ZHU
```
Report
a routine report filed through AUS
Where
40 nm east (090°) of KCWK
Time
12:14 UTC
Height
at 23,000 ft
Aircraft
B738
Turbulence
occasional light chop
Remarks
zhu
B737 at 2,500 ft, 33 nm north, 7:05 am CDT (12:05 UTC): remarks: B025 T045. 50 nm along the route, 33 nm north of the line.
as filed, and in English
```
AUS UA /OV 5N/TM 1205/FL025/TP B737/RM B025 T045
```
Report
a routine report filed through AUS
Where
5N
Time
12:05 UTC
Height
at 2,500 ft
Aircraft
B737
Remarks
B025 T045
B738 at 35,000 ft, 33 nm north, 6:58 am CDT (11:58 UTC): light chop turbulence, remarks: zhu. 50 nm along the route, 33 nm north of the line.
as filed, and in English
```
AUS UA /OV KCWK/TM 1158/FL350/TP B738/TB INTMT LGT CHOP/RM ZHU
```
Report
a routine report filed through AUS
Where
over KCWK
Time
11:58 UTC
Height
at 35,000 ft
Aircraft
B738
Turbulence
intermittent light chop
Remarks
zhu
B738 at 38,000 ft, 33 nm north, 6:22 am CDT (11:22 UTC): no turbulence, remarks: zhu. 50 nm along the route, 33 nm north of the line.
as filed, and in English
```
AUS UA /OV KCWK360015/TM 1122/FL380/TP B738/TB NEG/RM ZHU
```
Report
a routine report filed through AUS
Where
15 nm north (360°) of KCWK
Time
11:22 UTC
Height
at 38,000 ft
Aircraft
B738
Turbulence
none
Remarks
zhu
B748 at 40,000 ft, 33 nm north, 6:17 am CDT (11:17 UTC): no turbulence, remarks: smooth zhu. 50 nm along the route, 33 nm north of the line.
as filed, and in English
```
AUS UA /OV KCWK270015/TM 1117/FL400/TP B748/TB NEG/RM SMOOTH ZHU
```
Report
a routine report filed through AUS
Where
15 nm west (270°) of KCWK
Time
11:17 UTC
Height
at 40,000 ft
Aircraft
B748
Turbulence
none
Remarks
smooth zhu
B738 at 24,000 ft, 22 nm south, 6:25 am CDT (11:25 UTC): remarks: zhu. 80 nm along the route, 22 nm south of the line.
as filed, and in English
```
VCT UA /OV KVCT360030/TM 1125/FL240/TP B738/SK TOP 220/RM ZHU
```
Report
a routine report filed through VCT
Where
30 nm north (360°) of KVCT
Time
11:25 UTC
Height
at 24,000 ft
Aircraft
B738
Sky
top 22,000 ft
Remarks
zhu
B738 at 21,000 ft, 49 nm north, 6:48 am CDT (11:48 UTC): light to moderate turbulence, remarks: flight level at 19,000 ft FL220 zhu. 110 nm along the route, 49 nm north of the line.
as filed, and in English
```
CLL UA /OV KTNV200020/TM 1148/FL210/TP B738/TB LGT-MOD/RM FL 190 FL220 ZHU
```
Report
a routine report filed through CLL
Where
20 nm south (200°) of KTNV
Time
11:48 UTC
Height
at 21,000 ft
Aircraft
B738
Turbulence
light to moderate
Remarks
flight level at 19,000 ft FL220 zhu
B737 at 20,000 ft, 49 nm north, 6:35 am CDT (11:35 UTC): light chop turbulence, remarks: zhu. 110 nm along the route, 49 nm north of the line.
as filed, and in English
```
CLL UA /OV KTNV/TM 1135/FL200/TP B737/TB CONS LGT CHOP/RM ZHU
```
Report
a routine report filed through CLL
Where
over KTNV
Time
11:35 UTC
Height
at 20,000 ft
Aircraft
B737
Turbulence
continuous light chop
Remarks
zhu

5 more routine reports are on the map.

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 4 forecast points nearest it (SAT, CLL, HOU, LCH). 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	170° at 21 kt	0		120 kt	2 h 50 min	10:46 am CDT (15:46 UTC)
5,500 ft	170° at 21 kt	+1 kt		119 kt	2 h 51 min	10:47 am CDT (15:47 UTC)
7,500 ft	170° at 16 kt	0	16 °C	120 kt	2 h 50 min	10:46 am CDT (15:46 UTC)
9,500 ft	180° at 10 kt	−1 kt	13 °C	121 kt	2 h 49 min	10:45 am CDT (15:45 UTC)
11,500 ft	190° at 6 kt	−2 kt	9 °C	122 kt	2 h 47 min	10:43 am CDT (15:43 UTC)
13,500 ft	220° at 6 kt	−4 kt	4 °C	124 kt	2 h 45 min	10:41 am CDT (15:41 UTC)
15,500 ft	240° at 7 kt	−7 kt	0 °C	127 kt	2 h 41 min	10:37 am CDT (15:37 UTC)
17,500 ft	250° at 10 kt	−9 kt	-5 °C	129 kt	2 h 38 min	10:34 am CDT (15:34 UTC)
18,000 ft FL180	250° at 10 kt	−10 kt	-6 °C	130 kt	2 h 37 min	10:33 am CDT (15:33 UTC)
24,000 ft FL240	260° at 14 kt	−14 kt	-14 °C	134 kt	2 h 32 min	10:28 am CDT (15:28 UTC)
30,000 ft FL300	310° at 21 kt	−14 kt	-30 °C	134 kt	2 h 32 min	10:28 am CDT (15:28 UTC)
34,000 ft FL340	330° at 20 kt	−9 kt	-40 °C	129 kt	2 h 38 min	10:34 am CDT (15:34 UTC)
39,000 ft FL390	350° at 33 kt	−3 kt	-51 °C	123 kt	2 h 46 min	10:42 am CDT (15:42 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
SAT	used from 0 nm out; 25 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°
CLL	used from 50 nm out; 64 nm from the line	180/24	170/21 19°	180/10 14°	230/7 8°	230/16 -6°	260/20 -13°	290/23 -29°	320/21 -39°	340/35 -51°
HOU	used from 100 nm out; 44 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 200 nm out; 51 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°

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
SAT San Antonio, TX	departure	marginal VFR Sky: a broken layer at 1,500 feet, a broken layer at 2,600 feet	from the east-southeast (110°) at 5 knots	10+ mi	1,500 ft	809 ft	7:51 am CDT (12:51 UTC)
BAZ New Braunfels, TX	20 nm out, 8 nm north of the line, tower	marginal VFR Sky: a broken layer at 1,600 feet, a broken layer at 4,100 feet	calm	10+ mi	1,600 ft	658 ft	12:51 UTC
ELA Eagle Lake, TX	110 nm out, 12 nm south of the line	VFR	calm	10+ mi	none	184 ft	12:35 UTC
TME Houston, TX	140 nm out, 5 nm southwest of the line, tower	marginal VFR Sky: a broken layer at 2,800 feet, overcast at 3,300 feet	calm	10+ mi	2,800 ft	165 ft	07:55 UTC
IAH Houston, TX	170 nm out, 7 nm northwest of the line, tower	VFR Sky: scattered clouds at 2,600 feet, overcast at 24,000 feet	from the east (090°) at 3 knots	10+ mi	24,000 ft	95 ft	12:53 UTC
BPT Beaumont/Port Arthur, TX	230 nm out, 6 nm southeast of the line, tower	VFR	from the southeast (130°) at 7 knots	10+ mi	none	14 ft	11:53 UTC
LCH Lake Charles, LA	280 nm out, 5 nm west of the line, tower	VFR	from the east-southeast (110°) at 5 knots	10+ mi	none	14 ft	11:53 UTC
LFT Lafayette, LA	destination	VFR	calm	10+ mi	none	40 ft	6:53 am CDT (11:53 UTC)

The highest airport on this list sits at 809 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At LFT when you get there the forecast at the estimated arrival, 10:28 am CDT (15:28 UTC)

Wind light and variable, visibility more than 6 miles, clear skies VFR

The whole forecast for LFT

From Mon 7:00 am CDT (12:00 UTC): wind light and variable, visibility more than 6 miles, clear skies
From Mon 11:00 am CDT (16:00 UTC): wind from the south at 6 knots, visibility more than 6 miles, clear skies
From Mon 8:00 pm CDT (01:00 UTC): wind light and variable, visibility more than 6 miles, a few clouds at 25,000 feet

The forecast for SAT, the departure

From Mon 7:00 am CDT (12:00 UTC): wind from the east-southeast at 5 knots, visibility more than 6 miles, a broken layer at 1,500 feet
At times between Mon 8:00 am CDT (13:00 UTC) and 11:00 am CDT (16:00 UTC): a broken layer at 2,500 feet
From Mon 12:00 pm CDT (17:00 UTC): wind from the south-southeast at 12 knots, visibility more than 6 miles, a broken layer at 3,500 feet
From Tue 1:00 am CDT (06:00 UTC): wind from the south-southeast at 9 knots, visibility more than 6 miles, overcast at 1,500 feet
At times between Tue 4:00 am CDT (09:00 UTC) and 7:00 am CDT (12:00 UTC): a broken layer at 800 feet

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

No temporary flight restriction on or near this route right now.

Daylight

Sunset at SAT 7:05 pm CDT (00:05 UTC), at LFT 6:40 pm CDT (23:40 UTC) (civil twilight ends 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 southern Plains · loop National Weather Service

Radar now, the lower Mississippi valley · 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: San Antonio International, Lafayette Rgnl/Paul Fournet Field.