Martha'S Vineyard Airport to San Antonio International MVY → SAT
1,528 nautical miles (1,758 statute miles) west on a straight line, true course 251°, about 266° magnetic at the departure end (variation 15W). At 120 knots that is 13 h 53 min at the quickest height in today's winds (4,500 ft, a 10-knot headwind), arriving about 3:01 pm CDT (20:01 UTC). Right now MVY is low IFR, wind from the north-northeast (030°) at 11 knots; SAT is marginal VFR, wind from the southeast (130°) at 9 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: 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 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the first 849 nm of the route.
- AIRMET TANGO 4W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground). Over the first 20 nm of the route.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 10,000 ft. Over the first 80 nm of the route.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the route from 20 to 419 nm out.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 359 to 709 nm out.
- AIRMET TANGO 5W: moderate turbulence below 18,000 ft (due to mountain wave) up to 10,000 ft. Over the route from 459 to 479 nm out.
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 MVY.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- A319 at 23,000 ft, 19 nm southeast, 11:21 pm EDT (03:21 UTC): moderate turbulence. 200 nm along the route, 19 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
- B38M at 20,000 ft, 10 nm south, 11:11 pm EDT (03:11 UTC): moderate clear-air turbulence from 20,000 ft to 25,000 ft. 359 nm along the route, 10 nm south 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
- E145 at 600 ft, 32 nm north, 11:20 pm EDT (03:20 UTC): overcast above 600 ft. 290 nm along the route, 32 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
- B712 descending, 26 nm southeast, 11:10 pm EDT (03:10 UTC): remarks: light rain light chop bases 50,000 ft ft. 309 nm along the route, 26 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
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 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 16 forecast points nearest it (ACK, BDL, JFK, ACY, PSB, EKN, CRW, TRI, TYS, BNA, HSV, MEM, LIT, SHV, CLL, SAT). 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 | 260° at 10 kt | +10 kt | 12 °C | 110 kt | 13 h 53 min | 3:01 pm CDT (20:01 UTC) |
| 6,500 ft | 270° at 12 kt | +11 kt | 14 °C | 109 kt | 14 h 01 min | 3:09 pm CDT (20:09 UTC) |
| 8,500 ft | 270° at 14 kt | +13 kt | 11 °C | 107 kt | 14 h 17 min | 3:25 pm CDT (20:25 UTC) |
| 10,500 ft | 280° at 14 kt | +12 kt | 8 °C | 108 kt | 14 h 09 min | 3:17 pm CDT (20:17 UTC) |
| 12,500 ft | 290° at 14 kt | +10 kt | 4 °C | 110 kt | 13 h 53 min | 3:01 pm CDT (20:01 UTC) |
| 14,500 ft | 280° at 15 kt | +11 kt | 0 °C | 109 kt | 14 h 01 min | 3:09 pm CDT (20:09 UTC) |
| 16,500 ft | 280° at 16 kt | +12 kt | -4 °C | 108 kt | 14 h 09 min | 3:17 pm CDT (20:17 UTC) |
| 18,000 ft FL180 | 280° at 17 kt | +13 kt | -7 °C | 107 kt | 14 h 17 min | 3:25 pm CDT (20:25 UTC) |
| 24,000 ft FL240 | 280° at 22 kt | +16 kt | -18 °C | 104 kt | 14 h 42 min | 3:50 pm CDT (20:50 UTC) |
| 30,000 ft FL300 | 280° at 33 kt | +24 kt | -32 °C | 96 kt | 15 h 55 min | 5:03 pm CDT (22:03 UTC) |
| 34,000 ft FL340 | 280° at 38 kt | +30 kt | -40 °C | 90 kt | 16 h 59 min | 6:07 pm CDT (23:07 UTC) |
| 39,000 ft FL390 | 290° at 35 kt | +25 kt | -50 °C | 95 kt | 16 h 05 min | 5:13 pm CDT (22:13 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| ACK | used from 0 nm out; 49 nm from the line | 230/29 | 270/37 16° | 270/38 10° | 270/40 4° | 240/46 -8° | 230/52 -17° | 240/74 -31° | 240/83 -41° | 240/91 -53° |
| BDL | used from 50 nm out; 62 nm from the line | 120/24 | 290/23 12° | 280/21 8° | 250/36 3° | 250/41 -11° | 230/48 -21° | 230/78 -32° | 230/96 -41° | 230/86 -52° |
| JFK | used from 100 nm out; 26 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° |
| ACY | used from 200 nm out; 49 nm from the line | 220/19 | 220/18 14° | 210/36 9° | 210/35 5° | 220/36 -8° | 240/49 -21° | 220/90 -31° | 230/103 -40° | 230/81 -50° |
| PSB | used from 300 nm out; 94 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° | |
| EKN | used from 349 nm out; 77 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° | |
| CRW | used from 499 nm out; 28 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° |
| TRI | used from 599 nm out; 60 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° | |
| TYS | used from 649 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° |
| BNA | used from 749 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° |
| HSV | used from 849 nm out; 60 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° |
| MEM | used from 899 nm out; 75 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° |
| LIT | used from 1048 nm out; 85 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° |
| SHV | used from 1148 nm out; 60 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° |
| CLL | used from 1298 nm out; 79 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° |
| SAT | used from 1448 nm out; 55 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° |
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 |
|---|---|---|---|---|---|---|---|
| MVY Vineyard Haven, MA | departure | low IFR Sky: overcast at 300 feet Weather: light rain | from the north-northeast (030°) at 11 knots | 10+ mi | 300 ft | 66 ft | 1:53 am EDT (05:53 UTC) |
| JPX East Hampton, NY | 80 nm out, 1 nm east of the line, tower | IFR Sky: overcast at 500 feet Weather: light rain | from the north (360°) at 8 knots | 10+ mi | 500 ft | 54 ft | 05:55 UTC |
| TTN Trenton, NJ | 200 nm out, 4 nm northwest of the line, tower | IFR Sky: overcast at 700 feet | from the northeast (040°) at 11 knots | 10+ mi | 700 ft | 212 ft | 05:53 UTC |
| FDK Frederick, MD | 329 nm out, 2 nm west of the line, tower | IFR Sky: overcast at 800 feet Weather: light rain | from the north (360°) at 8 knots | 9 mi | 800 ft | 308 ft | 05:55 UTC |
| PBX Pikeville, KY | 599 nm out, 2 nm northwest of the line | low IFR Sky: overcast at 300 feet | from the west-southwest (240°) at 5 knots | 10+ mi | 300 ft | 1,464 ft | 05:55 UTC |
| BYL Williamsburg, KY | 689 nm out, 4 nm south of the line | IFR Sky: a broken layer at 700 feet, overcast at 1,000 feet | calm | 9 mi | 700 ft | 1,177 ft | 05:55 UTC |
| MQY Smyrna, TN | 809 nm out, 8 nm northwest of the line, tower | reported, no category | calm | 200 ft | 543 ft | 05:56 UTC | |
| CRX Corinth, MS | 928 nm out, 3 nm west of the line | marginal VFR Weather: mist | calm | 3 mi | none | 425 ft | 05:55 UTC |
| GLH Greenville, MS | 1078 nm out, 13 nm southeast of the line, tower | VFR | from the south-southwest (200°) at 9 knots | 10+ mi | none | 130 ft | 05:53 UTC |
| SHV Shreveport, LA | 1228 nm out, 11 nm northwest of the line, tower | VFR | from the south-southwest (210°) at 7 knots | 10+ mi | none | 257 ft | 05:56 UTC |
| HYI Austin, TX | 1488 nm out, 2 nm southwest of the line, tower | VFR | from the south-southeast (150°) at 4 knots | 10+ mi | none | 594 ft | 05:56 UTC |
| SAT San Antonio, TX | destination | marginal VFR Sky: a broken layer at 2,300 feet | from the southeast (130°) at 9 knots | 10+ mi | 2,300 ft | 809 ft | 12:51 am CDT (05:51 UTC) |
The highest airport on this list sits at 1,464 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At SAT when you get there the forecast at the estimated arrival, 3:01 pm CDT (20:01 UTC)
Wind from the south-southeast at 12 knots, visibility more than 6 miles, showers nearby, a broken layer at 3,500 feet VFR
The whole forecast for SAT
- 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
- 5/2811 NEW YORK, NY, Monday, October 20, 2025 through Tuesday, October 20, 2026 Local 16 nm from the route, 160 nm along the route · security · until 20 October · ZNY
- 6/8800 Baltimore, MD, Saturday, October 17, 2026 through Sunday, October 18, 2026 UTC 20 nm from the route, 300 nm along the route · drones kept away from a public gathering · starts Saturday 17 October · ZDC
- 4/9383 WASHINGTON, DC., USA 22 nm from the route, 329 nm along the route · security · ZDC
- 6/8600 Sterling, VA, Monday, October 12, 2026 through Monday, October 12, 2026 Local 15 nm from the route, 339 nm along the route · a VIP movement · today · ZDC
Daylight
Sunset at MVY 6:06 pm EDT (22:06 UTC), at SAT 7:05 pm CDT (00:05 UTC) (civil twilight ends 7:29 pm CDT (00:29 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: Martha'S Vineyard Airport, San Antonio International.