San Antonio International to New York Stewart International SAT → SWF
1,383 nautical miles (1,592 statute miles) northeast on a straight line, true course 052°, about 048° magnetic at the departure end (variation 4E). At 120 knots that is 10 h 01 min at the quickest height in today's winds (34,000 ft, a 18-knot tailwind), arriving about 9:32 am EDT (13:32 UTC). Right now SAT is VFR, wind from the southeast (140°) at 12 knots, gusting to 20; SWF is marginal VFR, wind from the east-northeast (060°) at 10 knots, gusting to 14. 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
- SIGMET E11E: thunderstorms (a convective SIGMET) up to 34,000 ft, moving from the southwest at 20 knots, until 11:55 pm CDT (04:55 UTC). Over the route from 1135 to 1214 nm out.
as issued
WSUS31 KKCI 120255 MKCE WST 120255 CONVECTIVE SIGMET 11E VALID UNTIL 0455Z NY NJ PA DE MD VA DC WV AND DE NJ NY MD CT VA CSTL WTRS FROM 20NE JFK-90SE SIE-20NNW ORF-30ENE EKN-10S JST-20NE JFK AREA EMBD TS MOV FROM 24020KT. TOPS TO FL340.
- 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 657 nm of the route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 945 to 1304 nm out.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the last 328 nm of the route.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 13,000 ft. Over the last 109 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
Not fetched just now.
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 11 forecast points nearest it (SAT, CLL, SHV, LIT, MEM, BNA, LOU, CRW, EKN, PSB, AVP). 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 8 kt | −9 kt | 129 kt | 10 h 43 min | 10:14 am EDT (14:14 UTC) | |
| 5,500 ft | 280° at 8 kt | −7 kt | 12 °C | 127 kt | 10 h 53 min | 10:24 am EDT (14:24 UTC) |
| 7,500 ft | 290° at 11 kt | −8 kt | 13 °C | 128 kt | 10 h 48 min | 10:19 am EDT (14:19 UTC) |
| 9,500 ft | 290° at 13 kt | −9 kt | 9 °C | 129 kt | 10 h 43 min | 10:14 am EDT (14:14 UTC) |
| 11,500 ft | 300° at 12 kt | −6 kt | 6 °C | 126 kt | 10 h 59 min | 10:30 am EDT (14:30 UTC) |
| 13,500 ft | 300° at 13 kt | −6 kt | 2 °C | 126 kt | 10 h 59 min | 10:30 am EDT (14:30 UTC) |
| 15,500 ft | 300° at 14 kt | −7 kt | -2 °C | 127 kt | 10 h 53 min | 10:24 am EDT (14:24 UTC) |
| 17,500 ft | 300° at 15 kt | −8 kt | -6 °C | 128 kt | 10 h 48 min | 10:19 am EDT (14:19 UTC) |
| 18,000 ft FL180 | 300° at 16 kt | −8 kt | -7 °C | 128 kt | 10 h 48 min | 10:19 am EDT (14:19 UTC) |
| 24,000 ft FL240 | 300° at 19 kt | −10 kt | -18 °C | 130 kt | 10 h 38 min | 10:09 am EDT (14:09 UTC) |
| 30,000 ft FL300 | 300° at 33 kt | −14 kt | -32 °C | 134 kt | 10 h 19 min | 9:50 am EDT (13:50 UTC) |
| 34,000 ft FL340 | 300° at 35 kt | −18 kt | -40 °C | 138 kt | 10 h 01 min | 9:32 am EDT (13:32 UTC) |
| 39,000 ft FL390 | 300° at 34 kt | −15 kt | -50 °C | 135 kt | 10 h 15 min | 9:46 am EDT (13:46 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; 53 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 398 nm out; 66 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 498 nm out; 27 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° |
| BNA | used from 647 nm out; 44 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° |
| LOU | used from 796 nm out; 69 nm from the line | 310/18 | 340/28 16° | 340/29 10° | 350/27 3° | 330/27 -7° | 340/39 -19° | 330/58 -33° | 330/67 -41° | 330/40 -49° |
| CRW | used from 896 nm out; 73 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 1045 nm out; 30 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 1145 nm out; 55 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 1244 nm out; 48 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° |
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 20,000 feet | from the southeast (140°) at 12 knots, gusting to 20 | 10+ mi | none | 809 ft | 9:51 pm CDT (02:51 UTC) |
| HYI Austin, TX | 40 nm out, 3 nm south of the line, tower | VFR | from the south-southeast (150°) at 8 knots | 10+ mi | none | 594 ft | 02:56 UTC |
| GGG Longview, TX | 259 nm out, 21 nm northwest of the line, tower | VFR | from the south-southeast (160°) at 6 knots | 10+ mi | none | 365 ft | 02:53 UTC |
| SHV Shreveport, LA | 299 nm out, 4 nm south of the line, tower | VFR Sky: a few clouds at 30,000 feet | from the southeast (140°) at 4 knots | 10+ mi | none | 257 ft | 02:56 UTC |
| OLV Olive Branch, MS | 547 nm out, 9 nm northwest of the line, tower | reported, no category | calm | 10+ mi | none | 401 ft | 03:15 UTC |
| MKL Jackson, TN | 607 nm out, 17 nm northwest of the line, tower | VFR | calm | 10+ mi | none | 434 ft | 02:53 UTC |
| JWN Nashville, TN | 707 nm out, 6 nm southeast of the line, tower | low IFR Sky: sky obscured at 200 feet Weather: fog | calm | 0.25 mi | 200 ft | 501 ft | 03:15 UTC |
| HTS Huntington, WV | 955 nm out, 5 nm west of the line, tower | IFR Sky: a broken layer at 700 feet, overcast at 1,400 feet Weather: mist | from the west (280°) at 5 knots | 2.5 mi | 700 ft | 828 ft | 02:51 UTC |
| CKB Clarksburg, WV | 1075 nm out, 1 nm west of the line, tower | marginal VFR Sky: a few clouds at 500 feet, a broken layer at 1,100 feet, overcast at 5,000 feet | from the west (280°) at 3 knots | 10+ mi | 1,100 ft | 1,223 ft | 03:12 UTC |
| CXY Harrisburg, PA | 1234 nm out, 19 nm southeast of the line, tower | IFR Sky: overcast at 700 feet | from the north-northeast (030°) at 3 knots | 8 mi | 700 ft | 346 ft | 02:56 UTC |
| AVP Wilkes-Barre/Scranton, PA | 1314 nm out, 21 nm northwest of the line, tower | marginal VFR Sky: overcast at 1,300 feet | from the east-northeast (060°) at 6 knots | 10+ mi | 1,300 ft | 961 ft | 02:54 UTC |
| SWF New York, NY | destination | marginal VFR Sky: a few clouds at 700 feet, overcast at 1,500 feet Weather: light rain, mist | from the east-northeast (060°) at 10 knots, gusting to 14 | 3 mi | 1,500 ft | 490 ft | 7:45 pm EDT (23:45 UTC) |
The highest airport on this list sits at 1,223 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At SWF when you get there the forecast at the estimated arrival, 9:32 am EDT (13:32 UTC)
Wind from the north-northeast at 6 knots, visibility more than 6 miles, a broken layer at 2,000 feet marginal VFR
The whole forecast for SWF
- From Sun 11:00 pm EDT (03:00 UTC): wind from the northeast at 7 knots, visibility 5 miles, light rain showers, mist, a few clouds at 400 feet, a broken layer at 700 feet and more above
- From Mon 7:00 am EDT (11:00 UTC): wind from the north-northeast at 5 knots, visibility more than 6 miles, a broken layer at 800 feet, overcast at 1,500 feet
- From Mon 9:00 am EDT (13:00 UTC): wind from the north-northeast at 6 knots, visibility more than 6 miles, a broken layer at 2,000 feet
- From Mon 12:00 pm EDT (16:00 UTC): wind from the north at 7 knots, visibility more than 6 miles, a few clouds at 2,000 feet, a broken layer at 5,000 feet
- From Mon 4:00 pm EDT (20:00 UTC): wind from the northwest at 6 knots, visibility more than 6 miles, scattered clouds at 5,000 feet
- From Mon 9:00 pm EDT (01:00 UTC): wind light and variable, visibility more than 6 miles, scattered clouds at 5,000 feet
The forecast for SAT, the departure
- From Sun 10:00 pm CDT (03:00 UTC): wind from the south-southeast at 15 knots, visibility more than 6 miles, a few clouds at 6,000 feet, scattered clouds at 25,000 feet
- From Mon 12:00 am CDT (05:00 UTC): wind from the southeast at 9 knots, visibility more than 6 miles, scattered clouds at 1,200 feet
- From Mon 6:00 am CDT (11:00 UTC): wind from the east-southeast at 5 knots, visibility more than 6 miles, a broken layer at 1,200 feet
- From Mon 12:00 pm CDT (17:00 UTC): wind from the south-southeast at 8 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 11 knots, visibility more than 6 miles, a broken layer at 5,000 feet
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 12 nm from the route, 60 nm along the route · drones kept away from a public gathering · until 12 October · ZHU
- 6/0708 Goodlettsville, TN, Saturday, August 1, 2026 through Sunday, August 1, 2027 UTC 3 nm from the route, 717 nm along the route · security · until 1 August · ZME
Daylight
Sunset at SAT 7:06 pm CDT (00:06 UTC), at SWF 6:20 pm EDT (22:20 UTC) (civil twilight ends 6:48 pm EDT (22:48 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: San Antonio International, New York Stewart International.