Plan a flight · Mon 12:42 am CDT (05:42 UTC)

San Antonio International to Laguardia Airport SAT → LGA

1,376 nautical miles (1,584 statute miles) northeast on a straight line, true course 054°, about 050° magnetic at the departure end (variation 4E). At 120 knots that is 9 h 46 min at the quickest height in today's winds (34,000 ft, a 21-knot tailwind), arriving about 11:28 am EDT (15:28 UTC). Right now SAT is VFR, wind from the southeast (130°) at 10 knots; LGA is IFR, wind from the north (010°) at 11 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: 3 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

SIGMET E19E: thunderstorms (a convective SIGMET) up to 43,000 ft, moving from the southwest at 20 knots, until 1:55 am CDT (06:55 UTC). Over the last 299 nm of the route.

as issued

WSUS31 KKCI 120455
MKCE WST 120455
CONVECTIVE SIGMET 19E
VALID UNTIL 0655Z
CT NY NJ PA DE MD VA DC WV AND DE NJ NY MD CT VA CSTL WTRS
FROM 20NNW HTO-70SSE HTO-90SE SIE-20WNW LYH-40ESE AIR-20NNW HTO
AREA EMBD TS MOV FROM 24020KT. TOPS TO FL430.

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 698 nm of the route.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 848 to 1187 nm out.
AIRMET TANGO 5W: moderate turbulence below 18,000 ft (due to mountain wave) up to 10,000 ft. Near the route, 1067 nm along the route.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the last 259 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

B38M at 20,000 ft, 24 nm southeast, 10:11 pm CDT (03:11 UTC): moderate clear-air turbulence from 20,000 ft to 25,000 ft. 1167 nm along the route, 24 nm southeast of the line.
as filed, and in English
```
IAD UA /OV AML300020/TM 0311/FL200/TP B38M/TB MOD CAT 200-250
```
Report
a routine report filed through IAD
Where
20 nm northwest (300°) of AML
Time
03:11 UTC
Height
at 20,000 ft
Aircraft
B38M
Turbulence
moderate clear-air turbulence from 20,000 ft to 25,000 ft
A319 at 23,000 ft, 34 nm southeast, 10:21 pm CDT (03:21 UTC): moderate turbulence. At the destination end, 34 nm southeast of the line.
as filed, and in English
```
MJX UA /OV CYN345010/TM 0321/FL230/TP A319/TB MOD
```
Report
a routine report filed through MJX
Where
10 nm north (345°) of CYN
Time
03:21 UTC
Height
at 23,000 ft
Aircraft
A319
Turbulence
moderate
B712 descending, 40 nm southeast, 10:10 pm CDT (03:10 UTC): remarks: light rain light chop bases 50,000 ft ft. 1217 nm along the route, 40 nm southeast of the line.
as filed, and in English
```
BWI UA /OV RWY 15R/TM 0310/FLDURD/TP B712/RM LIGHT RAIN. LIGHT CHOP. BASES 500 FT
```
Report
a routine report filed through BWI
Where
runway 15R
Time
03:10 UTC
Height
during the descent
Aircraft
B712
Remarks
light rain light chop bases 50,000 ft ft
E145 at 600 ft, 19 nm north, 10:20 pm CDT (03:20 UTC): overcast above 600 ft. 1237 nm along the route, 19 nm north of the line.
as filed, and in English
```
MDT UA /OV MDT/TM 0320/FL006/TP E145/SK OVC 006
```
Report
a routine report filed through MDT
Where
over MDT
Time
03:20 UTC
Height
at 600 ft
Aircraft
E145
Sky
overcast from 600 ft
GA6C descending, 45 nm north, 11:32 pm CDT (04:32 UTC): overcast above 1,000 ft, remarks: bases OVC010. At the destination end, 45 nm north of the line.
as filed, and in English
```
SWF UA /OV SWF 270005/TM 0432/FLDURD/TP GA6C/SK OVC010/RM BASES OVC010
```
Report
a routine report filed through SWF
Where
5 nm west (270°) of SWF
Time
04:32 UTC
Height
during the descent
Aircraft
GA6C
Sky
overcast from 1,000 ft
Remarks
bases OVC010
A321 at 700 ft, 10 nm south, 9:46 pm CDT (02:46 UTC): overcast above 700 ft. At the destination end, 10 nm south of the line.
as filed, and in English
```
JFK UA /OV KJFK225002/TM 0246/FL007/TP A321/SK OVC007
```
Report
a routine report filed through JFK
Where
2 nm southwest (225°) of KJFK
Time
02:46 UTC
Height
at 700 ft
Aircraft
A321
Sky
overcast from 700 ft
A320 descending, 35 nm east, 9:45 pm CDT (02:45 UTC): remarks: final runway 24. At the destination end, 35 nm east of the line.
as filed, and in English
```
ISP UA /OV ISP/TM 0245/FLDURD/TP A320/SK BCN007/RM FINAL RY24
```
Report
a routine report filed through ISP
Where
over ISP
Time
02:45 UTC
Height
during the descent
Aircraft
A320
Sky
BCN007
Remarks
final runway 24

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 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 14 forecast points nearest it (SAT, CLL, SHV, LIT, MEM, HSV, BNA, TYS, TRI, CRW, EKN, PSB, AVP, JFK). 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	240° at 9 kt	−10 kt		130 kt	10 h 35 min	12:17 pm EDT (16:17 UTC)
5,500 ft	280° at 9 kt	−8 kt	12 °C	128 kt	10 h 45 min	12:27 pm EDT (16:27 UTC)
7,500 ft	290° at 12 kt	−9 kt	13 °C	129 kt	10 h 40 min	12:22 pm EDT (16:22 UTC)
9,500 ft	290° at 14 kt	−10 kt	9 °C	130 kt	10 h 35 min	12:17 pm EDT (16:17 UTC)
11,500 ft	300° at 13 kt	−7 kt	6 °C	127 kt	10 h 50 min	12:32 pm EDT (16:32 UTC)
13,500 ft	300° at 14 kt	−7 kt	2 °C	127 kt	10 h 50 min	12:32 pm EDT (16:32 UTC)
15,500 ft	300° at 15 kt	−8 kt	-2 °C	128 kt	10 h 45 min	12:27 pm EDT (16:27 UTC)
17,500 ft	300° at 16 kt	−8 kt	-6 °C	128 kt	10 h 45 min	12:27 pm EDT (16:27 UTC)
18,000 ft FL180	300° at 17 kt	−9 kt	-7 °C	129 kt	10 h 40 min	12:22 pm EDT (16:22 UTC)
24,000 ft FL240	300° at 20 kt	−11 kt	-18 °C	131 kt	10 h 30 min	12:12 pm EDT (16:12 UTC)
30,000 ft FL300	300° at 32 kt	−16 kt	-32 °C	136 kt	10 h 07 min	11:49 am EDT (15:49 UTC)
34,000 ft FL340	290° at 36 kt	−21 kt	-40 °C	141 kt	9 h 46 min	11:28 am EDT (15:28 UTC)
39,000 ft FL390	300° at 35 kt	−17 kt	-50 °C	137 kt	10 h 03 min	11:45 am EDT (15:45 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
SAT	used from 0 nm out; 25 nm from the line	150/26	180/18 19°	180/18 14°	200/14 9°	230/16 -6°	210/9 -13°	270/8 -29°	280/6 -39°	340/19 -51°
CLL	used from 50 nm out; 52 nm from the line	170/22	170/26 18°	200/15 14°	240/13 8°	240/15 -5°	260/17 -13°	290/27 -29°	290/22 -40°	320/30 -51°
SHV	used from 199 nm out; 72 nm from the line	200/18	230/24 18°	230/24 12°	240/14 8°	260/12 -4°	240/11 -15°	300/31 -29°	300/32 -40°	300/36 -52°
LIT	used from 399 nm out; 79 nm from the line	220/21	230/17 16°	250/24 12°	260/15 7°	260/13 -5°	280/25 -16°	290/35 -30°	300/42 -40°	300/40 -52°
MEM	used from 449 nm out; 77 nm from the line	230/19	260/16 15°	270/17 12°	300/13 6°	300/15 -5°	300/26 -18°	300/34 -32°	300/41 -40°	310/46 -52°
HSV	used from 598 nm out; 78 nm from the line	310/20	330/20 16°	320/27 11°	340/23 5°	320/23 -7°	340/30 -17°	320/50 -33°	330/61 -41°	340/41 -50°
BNA	used from 648 nm out; 41 nm from the line	310/20	340/20 17°	330/24 10°	340/22 5°	330/26 -6°	340/29 -18°	330/52 -33°	320/62 -41°	340/45 -50°
TYS	used from 798 nm out; 70 nm from the line	320/20	340/18 11°	340/32 9°	340/36 4°	330/37 -7°	330/38 -19°	330/50 -34°	330/53 -38°	330/44 -48°
TRI	used from 848 nm out; 77 nm from the line		330/22 11°	330/29 7°	330/32 3°	330/36 -8°	320/34 -19°	320/36 -34°	320/43 -39°	320/46 -47°
CRW	used from 898 nm out; 70 nm from the line	330/20	330/23 11°	340/25 8°	340/21 2°	340/33 -9°	340/41 -20°	330/42 -35°	320/44 -39°	320/43 -47°
EKN	used from 1047 nm out; 9 nm from the line		330/21 12°	330/25 7°	350/22 2°	330/24 -10°	310/27 -21°	320/33 -35°	290/31 -39°	290/34 -47°
PSB	used from 1147 nm out; 86 nm from the line		360/13 13°	330/14 7°	300/11 3°	290/12 -11°	240/23 -23°	270/25 -36°	250/34 -40°	250/45 -48°
AVP	used from 1247 nm out; 75 nm from the line	150/5	350/13 12°	270/20 8°	260/17 4°	260/25 -11°	240/31 -22°	240/54 -35°	230/61 -41°	240/55 -49°
JFK	used from 1297 nm out; 57 nm from the line	250/18	250/23 14°	240/33 9°	240/33 4°	240/38 -10°	240/45 -21°	230/86 -32°	230/102 -40°	230/84 -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	VFR Sky: a few clouds at 25,000 feet	from the southeast (130°) at 10 knots	10+ mi	none	809 ft	11:51 pm CDT (04:51 UTC)
HYI Austin, TX	40 nm out, 2 nm south of the line, tower	VFR	from the south-southeast (160°) at 4 knots	10+ mi	none	594 ft	04:56 UTC
DKR Crockett, TX	189 nm out, 5 nm southeast of the line	no report just now				348 ft
SHV Shreveport, LA	299 nm out, 8 nm northwest of the line, tower	VFR	from the south-southwest (200°) at 7 knots	10+ mi	none	257 ft	04:56 UTC
GLH Greenville, MS	449 nm out, 18 nm southeast of the line, tower	VFR	from the south (180°) at 8 knots	10+ mi	none	130 ft	04:53 UTC
SNH Savannah, TN	618 nm out, 3 nm southeast of the line	VFR	calm	7 mi	none	472 ft	05:10 UTC
MQY Smyrna, TN	718 nm out, 1 nm southwest of the line, tower	reported, no category	calm		none	543 ft	05:16 UTC
LOZ London, KY	848 nm out, 3 nm east of the line	VFR	from the north (010°) at 9 knots, gusting to 16	10+ mi	none	1,212 ft	20:18 UTC
CRW Charleston, WV	987 nm out, 15 nm north of the line, tower	IFR Sky: overcast at 500 feet Weather: light rain, mist	from the west-northwest (290°) at 5 knots	1 mi	500 ft	947 ft	04:54 UTC
MRB Martinsburg, WV	1167 nm out, 4 nm east of the line, tower	marginal VFR Sky: overcast at 1,100 feet	from the north-northwest (340°) at 6 knots	10+ mi	1,100 ft	564 ft	04:53 UTC
LNS Lancaster, PA	1257 nm out, 6 nm north of the line, tower	IFR Sky: a broken layer at 600 feet, overcast at 1,900 feet	from the northeast (050°) at 10 knots	10+ mi	600 ft	402 ft	04:53 UTC
LGA New York, NY	destination	IFR Sky: a broken layer at 900 feet, overcast at 1,400 feet	from the north (010°) at 11 knots	10+ mi	900 ft	20 ft	12:51 am EDT (04:51 UTC)

The highest airport on this list sits at 1,212 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At LGA when you get there the forecast at the estimated arrival, 11:28 am EDT (15:28 UTC)

Wind from the north at 10 knots, visibility more than 6 miles, a broken layer at 2,500 feet marginal VFR

The whole forecast for LGA

From Mon 2:00 am EDT (06:00 UTC): wind from the north-northeast at 12 knots, visibility more than 6 miles, showers nearby, overcast at 800 feet
From Mon 8:00 am EDT (12:00 UTC): wind from the north at 11 knots, visibility more than 6 miles, a broken layer at 800 feet, overcast at 1,500 feet
From Mon 11:00 am EDT (15:00 UTC): wind from the north at 10 knots, visibility more than 6 miles, a broken layer at 2,500 feet
From Mon 1:00 pm EDT (17:00 UTC): wind from the north-northwest at 9 knots, visibility more than 6 miles, a few clouds at 2,500 feet, scattered clouds at 5,000 feet
From Mon 11:00 pm EDT (03:00 UTC): wind from the north-northwest at 5 knots, visibility more than 6 miles, a few clouds at 5,000 feet, a few clouds at 15,000 feet

The forecast for SAT, the departure

From Mon 1:00 am CDT (06:00 UTC): wind from the southeast at 8 knots, visibility more than 6 miles, a few clouds at 1,500 feet, a few clouds at 25,000 feet
From Mon 5:00 am CDT (10:00 UTC): wind from the southeast at 6 knots, visibility more than 6 miles, overcast at 1,500 feet
From Mon 12:00 pm CDT (17:00 UTC): wind from the south-southeast at 12 knots, visibility more than 6 miles, showers nearby, a broken layer at 3,500 feet
From Tue 2:00 am CDT (07:00 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

6/0708 Goodlettsville, TN, Saturday, August 1, 2026 through Sunday, August 1, 2027 UTC 21 nm from the route, 718 nm along the route · security · until 1 August · ZME
4/9383 WASHINGTON, DC., USA 20 nm from the route, 1197 nm along the route · security · ZDC
5/2811 NEW YORK, NY, Monday, October 20, 2025 through Tuesday, October 20, 2026 Local 4 nm from the route, at the destination end · security · until 20 October · ZNY

Daylight

Sunset at SAT 7:05 pm CDT (00:05 UTC), at LGA 6:20 pm EDT (22:20 UTC) (civil twilight ends 6:47 pm EDT (22:47 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 now, the central Great Lakes · 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, Laguardia Airport.