Plan a flight · Mon 1:29 am EDT (05:29 UTC)

Greenville Spartanburg International to New York Stewart International GSP → SWF

551 nautical miles (634 statute miles) northeast on a straight line, true course 042°, about 048° magnetic at the departure end (variation 6W). At 120 knots that is 3 h 16 min at the quickest height in today's winds (34,000 ft, a 49-knot tailwind), arriving about 4:45 am EDT (08:45 UTC), after sunset at the destination. Right now GSP is VFR, wind variable at 3 knots; SWF is marginal VFR, wind from the north-northeast (030°) at 7 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: 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 E19E: thunderstorms (a convective SIGMET) up to 43,000 ft, moving from the southwest at 20 knots, until 2:55 am EDT (06:55 UTC). Over the route from 207 to 472 nm out.

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 TANGO 5W: moderate turbulence below 18,000 ft (due to mountain wave) up to 10,000 ft. Over the first 246 nm of the route.
AIRMET TANGO 5W: moderate turbulence above 18,000 ft (due to mountain wave) from 29,000 ft to 40,000 ft. Over the route from 20 to 118 nm out.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 148 to 216 nm out.
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 364 nm of the route.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the last 334 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 GSP.

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

B38M at 20,000 ft, 17 nm northwest, 11:11 pm EDT (03:11 UTC): moderate clear-air turbulence from 20,000 ft to 25,000 ft. 325 nm along the route, 17 nm northwest 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
B712 descending, 19 nm southeast, 11:10 pm EDT (03:10 UTC): remarks: light rain light chop bases 50,000 ft ft. 374 nm along the route, 19 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, 28 nm northwest, 11:20 pm EDT (03:20 UTC): overcast above 600 ft. 413 nm along the route, 28 nm northwest 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
A321 at 700 ft, 48 nm southeast, 10:46 pm EDT (02:46 UTC): overcast above 700 ft. 521 nm along the route, 48 nm southeast 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
GA6C at 1,100 ft, 32 nm southeast, 10:31 pm EDT (02:31 UTC): overcast above 1,100 ft, remarks: low-level wind shear + 5 knots runway 34. At the destination end, 32 nm southeast of the line.
as filed, and in English
```
HPN UA /OV HPN/TM 0231/FL011/TP GA6C/SK OVC011/RM LLWS +/- 5 KNOTS RWY34
```
Report
a routine report filed through HPN
Where
over HPN
Time
02:31 UTC
Height
at 1,100 ft
Aircraft
GA6C
Sky
overcast from 1,100 ft
Remarks
low-level wind shear + 5 knots runway 34
GA6C descending, 5 nm west, 12:32 am EDT (04:32 UTC): overcast above 1,000 ft, remarks: bases OVC010. At the destination end, 5 nm west 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

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 8 forecast points nearest it (GSP, TRI, ROA, RIC, PSB, ACY, 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	290° at 18 kt	−7 kt		127 kt	4 h 20 min	5:49 am EDT (09:49 UTC)
5,500 ft	310° at 17 kt	−1 kt	12 °C	121 kt	4 h 33 min	6:02 am EDT (10:02 UTC)
7,500 ft	300° at 17 kt	−3 kt	10 °C	123 kt	4 h 29 min	5:58 am EDT (09:58 UTC)
9,500 ft	290° at 17 kt	−6 kt	7 °C	126 kt	4 h 22 min	5:51 am EDT (09:51 UTC)
11,500 ft	280° at 17 kt	−8 kt	5 °C	128 kt	4 h 18 min	5:47 am EDT (09:47 UTC)
13,500 ft	280° at 19 kt	−11 kt	1 °C	131 kt	4 h 12 min	5:41 am EDT (09:41 UTC)
15,500 ft	280° at 22 kt	−13 kt	-3 °C	133 kt	4 h 09 min	5:38 am EDT (09:38 UTC)
17,500 ft	270° at 24 kt	−16 kt	-7 °C	136 kt	4 h 03 min	5:32 am EDT (09:32 UTC)
18,000 ft FL180	270° at 25 kt	−16 kt	-8 °C	136 kt	4 h 03 min	5:32 am EDT (09:32 UTC)
24,000 ft FL240	260° at 31 kt	−25 kt	-21 °C	145 kt	3 h 48 min	5:17 am EDT (09:17 UTC)
30,000 ft FL300	250° at 44 kt	−41 kt	-32 °C	161 kt	3 h 25 min	4:54 am EDT (08:54 UTC)
34,000 ft FL340	240° at 53 kt	−49 kt	-39 °C	169 kt	3 h 16 min	4:45 am EDT (08:45 UTC)
39,000 ft FL390	250° at 46 kt	−41 kt	-49 °C	161 kt	3 h 25 min	4:54 am EDT (08:54 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
GSP	used from 0 nm out; 25 nm from the line	320/22	340/19 13°	320/18 8°	310/24 5°	300/34 -7°	300/36 -18°	290/30 -33°	300/32 -39°	320/42 -49°
TRI	used from 49 nm out; 70 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°
ROA	used from 98 nm out; 61 nm from the line	310/29	330/31 13°	340/28 7°	330/25 3°	310/32 -8°	300/32 -22°	290/32 -31°	270/35 -38°	270/32 -47°
RIC	used from 246 nm out; 67 nm from the line	270/23	280/19 11°	270/18 8°	240/22 4°	230/39 -7°	220/55 -18°	220/75 -30°	230/83 -39°	230/64 -50°
PSB	used from 344 nm out; 104 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°
ACY	used from 393 nm out; 81 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°
AVP	used from 443 nm out; 50 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 492 nm out; 49 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
GSP Greer, SC	departure	VFR	variable at 3 knots	10+ mi	none	963 ft	12:53 am EDT (04:53 UTC)
EHO Shelby, NC	39 nm out, 9 nm southeast of the line	VFR	from the west (260°) at 5 knots	10+ mi	none	846 ft	05:15 UTC
HKY Hickory, NC	69 nm out, 5 nm west of the line, tower	VFR	from the west (270°) at 5 knots	10+ mi	none	1,189 ft	04:53 UTC
INT Winston Salem, NC	118 nm out, 23 nm southeast of the line, tower	VFR Sky: a few clouds at 4,100 feet	from the west-southwest (240°) at 4 knots	10+ mi	none	969 ft	04:54 UTC
LYH Lynchburg, VA	207 nm out, 10 nm southeast of the line, tower	VFR Sky: a few clouds at 8,000 feet	from the southwest (220°) at 4 knots	10+ mi	none	938 ft	04:54 UTC
CHO Charlottesville, VA	266 nm out, 2 nm east of the line, tower	VFR Sky: a few clouds at 2,900 feet, a broken layer at 6,000 feet, overcast at 11,000 feet	from the northwest (320°) at 3 knots	10+ mi	6,000 ft	640 ft	04:53 UTC
HEF Washington, DC	325 nm out, 10 nm southeast of the line, tower	IFR Sky: overcast at 700 feet	from the northwest (310°) at 8 knots	3 mi	700 ft	192 ft	04:56 UTC
IAD Washington, DC	334 nm out, 2 nm south of the line, tower	IFR Sky: overcast at 600 feet Weather: light rain, mist	from the north-northwest (340°) at 12 knots	4 mi	600 ft	312 ft	04:52 UTC
LNS Lancaster, PA	423 nm out, 10 nm northwest 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
ABE Allentown, PA	472 nm out, 5 nm northwest of the line, tower	marginal VFR Sky: a few clouds at 1,200 feet, overcast at 2,000 feet	from the east-northeast (060°) at 9 knots	10+ mi	2,000 ft	393 ft	04:51 UTC
MMU Morristown, NJ	512 nm out, 21 nm southeast of the line, tower	marginal VFR Sky: scattered clouds at 1,200 feet, a broken layer at 1,800 feet, overcast at 6,000 feet	from the north (350°) at 4 knots	10+ mi	1,800 ft	186 ft	05:15 UTC
SWF New York, NY	destination	marginal VFR Sky: scattered clouds at 700 feet, overcast at 1,200 feet Weather: mist	from the north-northeast (030°) at 7 knots	6 mi	1,200 ft	490 ft	12:45 am EDT (04:45 UTC)

The highest airport on this list sits at 1,189 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, 4:45 am EDT (08:45 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 IFR

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 GSP, the departure

From Sun 8:00 pm EDT (00:00 UTC): wind from the west-southwest at 9 knots, visibility more than 6 miles, scattered clouds at 7,000 feet
From Mon 2:00 am EDT (06:00 UTC): wind from the west-southwest at 5 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
From Mon 12:00 pm EDT (16:00 UTC): wind from the north-northwest at 9 knots, visibility more than 6 miles, a few clouds at 25,000 feet

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

4/9383 WASHINGTON, DC., USA 4 nm from the route, 344 nm along the route · security · ZDC
6/8600 Sterling, VA, Monday, October 12, 2026 through Monday, October 12, 2026 Local on the route, 344 nm along the route · a VIP movement · today · ZDC
6/8800 Baltimore, MD, Saturday, October 17, 2026 through Sunday, October 18, 2026 UTC 14 nm from the route, 374 nm along the route · drones kept away from a public gathering · starts Saturday 17 October · ZDC

Daylight

Sunset at GSP 6:58 pm EDT (22:58 UTC), at SWF 6:20 pm EDT (22:20 UTC) (civil twilight ends 6:48 pm EDT (22:48 UTC)). At 120 knots the arrival at SWF is before sunrise there (7:04 am EDT (11:04 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 Southeast · loop National Weather Service

Radar now, the Northeast · 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: Greenville Spartanburg International, New York Stewart International.