Plan a flight · Mon 8:18 am AST (12:18 UTC)

Cyril E King Airport to Washington Dulles International STT → IAD

1,398 nautical miles (1,609 statute miles) northwest on a straight line, true course 335°, about 348° magnetic at the departure end (variation 13W). At 120 knots that is 12 h 50 min at the quickest height in today's winds (30,000 ft, a 11-knot headwind), arriving about 9:08 pm EDT (01:08 UTC), after sunset at the destination. Right now STT is VFR, wind from the east (100°) at 13 knots, gusting to 17; IAD is VFR, wind from the northwest (320°) at 11 knots, gusting to 18. 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: 664 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 E38E: thunderstorms (a convective SIGMET) up to 32,000 ft, moving from the northwest at 20 knots, until 9:55 am AST (13:55 UTC). Over the route from 1298 to 1328 nm out.

as issued

WSUS31 KKCI 121155
MKCE WST 121155
CONVECTIVE SIGMET 38E
VALID UNTIL 1355Z
NJ DE MD VA AND CSTL WTRS
FROM 50WNW SIE-20E SIE-30NNE ORF-20NE RIC-50WNW SIE
AREA TS MOV FROM 33020KT. TOPS TO FL320.

AIRMET TANGO 1W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Over the route from 1069 to 1109 nm out.
AIRMET TANGO 2W: moderate turbulence above 18,000 ft from 30,000 ft to 41,000 ft. Over the route from 1139 to 1268 nm out.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 24,000 ft to 33,000 ft. Over the last 110 nm of the route.
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 100 nm of the route.
AIRMET TANGO 3W: 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 route from 1338 to 1358 nm out.
AIRMET TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 6,000 ft. Over the last 0 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 STT.

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

B737 at 1,200 ft, 13 nm west, 7:56 am AST (11:56 UTC): overcast above 1,200 ft. 1258 nm along the route, 13 nm west of the line.
as filed, and in English
```
ORF UA /OV ORF/TM 1156/FL012/TP B737/SK BASE OVC012
```
Report
a routine report filed through ORF
Where
over ORF
Time
11:56 UTC
Height
at 1,200 ft
Aircraft
B737
Sky
base OVC012
PC12 at 1,000 ft, 17 nm west, 6:42 am AST (10:42 UTC): overcast above 1,000 ft, remarks: OVC010 during the descent runway 25 KPHF. 1278 nm along the route, 17 nm west of the line.
as filed, and in English
```
PHF UA /OV KPHF/TM 1042/FL010/TP PC12/SK OVC010/RM OVC010 DURD RWY25 KPHF
```
Report
a routine report filed through PHF
Where
over KPHF
Time
10:42 UTC
Height
at 1,000 ft
Aircraft
PC12
Sky
overcast from 1,000 ft
Remarks
OVC010 during the descent runway 25 KPHF
A320 at 4,000 ft, 45 nm southwest, 7:03 am AST (11:03 UTC): a broken layer above 4,000 ft, remarks: TOPS048. 1318 nm along the route, 45 nm southwest of the line.
as filed, and in English
```
RIC UA /OV RIC270006/TM 1103/FL040/TP A320/SK BKN040/RM TOPS048
```
Report
a routine report filed through RIC
Where
6 nm west (270°) of RIC
Time
11:03 UTC
Height
at 4,000 ft
Aircraft
A320
Sky
a broken layer from 4,000 ft
Remarks
TOPS048
E170 at 1,000 ft, 15 nm east, 7:32 am AST (11:32 UTC): a broken layer above 1,200 ft. At the destination end, 15 nm east of the line.
as filed, and in English
```
DCA UA /OV DCA/TM 1132/FL010/TP E170/SK BKN012
```
Report
a routine report filed through DCA
Where
over DCA
Time
11:32 UTC
Height
at 1,000 ft
Aircraft
E170
Sky
a broken layer from 1,200 ft
B39M at 1,200 ft, 39 nm northeast, 7:10 am AST (11:10 UTC): remarks: base 1200FT tops 2000FT. At the destination end, 39 nm northeast of the line.
as filed, and in English
```
BWI UA /OV BWI/TM 1110/FL012/TP B39M/RM BASE 1200FT TOPS 2000FT
```
Report
a routine report filed through BWI
Where
over BWI
Time
11:10 UTC
Height
at 1,200 ft
Aircraft
B39M
Remarks
base 1200FT tops 2000FT
B737 at 700 ft, 39 nm northeast, 5:33 am AST (09:33 UTC): remarks: light rain. At the destination end, 39 nm northeast of the line.
as filed, and in English
```
BWI UA /OV BWI/TM 0933/FL007/TP B737/RM LIGHT RAIN
```
Report
a routine report filed through BWI
Where
over BWI
Time
09:33 UTC
Height
at 700 ft
Aircraft
B737
Remarks
light rain
SF50 at 3,000 ft, 28 nm north, 8:15 am AST (12:15 UTC): a broken layer above 2,000 ft. At the destination end, 28 nm north of the line.
as filed, and in English
```
FDK UA /OV FDK/TM 1215/FL030/TP SF50/SK BKN020
```
Report
a routine report filed through FDK
Where
over FDK
Time
12:15 UTC
Height
at 3,000 ft
Aircraft
SF50
Sky
a broken layer from 2,000 ft
UAL1428 at 32,000 ft, 31 nm northwest, 7:36 am AST (11:36 UTC): no turbulence, -39 °C, wind 360° at 59 knots. At the destination end, 31 nm northwest of the line.
as filed, and in English
```
ARP UAL1428 3923N 07750W 1136 F320 MS39 360/059KT TB NONE SK CLEAR IC NONE
```
Report
a routine report filed through ARP
B39M descending, 0 nm northeast, 6:42 am AST (10:42 UTC): overcast above 4,000 ft. At the destination end, 0 nm northeast of the line.
as filed, and in English
```
IAD UA /OV RWY 1R/TM 1042/FLDURD/TP B39M/SK OVC 040/WX 10 SM
```
Report
a routine report filed through IAD
Where
runway 1R
Time
10:42 UTC
Height
during the descent
Aircraft
B39M
Sky
overcast from 4,000 ft
Weather
10, miles

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 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 4 forecast points nearest it (MIA, ILM, ORF, RIC). 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	310° at 12 kt	+12 kt		108 kt	12 h 57 min	9:15 pm EDT (01:15 UTC)
6,500 ft	310° at 13 kt	+12 kt	13 °C	108 kt	12 h 57 min	9:15 pm EDT (01:15 UTC)
8,500 ft	310° at 13 kt	+13 kt	11 °C	107 kt	13 h 04 min	9:22 pm EDT (01:22 UTC)
10,500 ft	310° at 14 kt	+13 kt	8 °C	107 kt	13 h 04 min	9:22 pm EDT (01:22 UTC)
12,500 ft	300° at 15 kt	+14 kt	5 °C	106 kt	13 h 11 min	9:29 pm EDT (01:29 UTC)
14,500 ft	300° at 18 kt	+14 kt	0 °C	106 kt	13 h 11 min	9:29 pm EDT (01:29 UTC)
16,500 ft	290° at 20 kt	+15 kt	-3 °C	105 kt	13 h 19 min	9:37 pm EDT (01:37 UTC)
18,000 ft FL180	280° at 22 kt	+15 kt	-7 °C	105 kt	13 h 19 min	9:37 pm EDT (01:37 UTC)
24,000 ft FL240	270° at 24 kt	+12 kt	-18 °C	108 kt	12 h 57 min	9:15 pm EDT (01:15 UTC)
30,000 ft FL300	260° at 32 kt	+11 kt	-32 °C	109 kt	12 h 50 min	9:08 pm EDT (01:08 UTC)
34,000 ft FL340	260° at 36 kt	+12 kt	-40 °C	108 kt	12 h 57 min	9:15 pm EDT (01:15 UTC)
39,000 ft FL390	270° at 29 kt	+15 kt	-50 °C	105 kt	13 h 19 min	9:37 pm EDT (01:37 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
MIA	used from 0 nm out; 941 nm from the line	L/V	L/V 17°	L/V 13°	L/V 8°	270/6 -6°	250/9 -17°	290/17 -32°	280/25 -41°	280/21 -52°
ILM	used from 649 nm out; 522 nm from the line	300/18	300/22 13°	300/21 8°	290/28 4°	280/38 -7°	270/40 -18°	250/49 -32°	250/50 -40°	270/33 -50°
ORF	used from 1049 nm out; 189 nm from the line	310/30	320/27 11°	310/30 8°	320/30 3°	290/36 -8°	270/40 -21°	250/52 -32°	250/50 -39°	260/42 -48°
RIC	used from 1298 nm out; 39 nm from the line	350/34	340/27 12°	340/36 8°	330/31 3°	310/32 -9°	320/34 -21°	300/37 -34°	290/37 -39°	290/42 -46°

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
STT Charlotte Amalie, VI	departure	VFR Sky: a few clouds at 3,000 feet	from the east (100°) at 13 knots, gusting to 17	10+ mi	none	23 ft	7:53 am AST (11:53 UTC)
ORF Norfolk, VA	1258 nm out, 12 nm west of the line, tower	marginal VFR Sky: a few clouds at 700 feet, overcast at 1,400 feet Weather: light rain, mist	from the northwest (320°) at 7 knots, gusting to 17	5 mi	1,400 ft	26 ft	11:51 UTC
DCA Washington, DC	1378 nm out, 15 nm northeast of the line, tower	VFR Sky: scattered clouds at 1,500 feet, a broken layer at 6,000 feet	from the north (350°) at 10 knots	10+ mi	6,000 ft	14 ft	11:52 UTC
IAD Washington, DC	destination	VFR Sky: a broken layer at 3,300 feet	from the northwest (320°) at 11 knots, gusting to 18	10+ mi	3,300 ft	312 ft	7:52 am EDT (11:52 UTC)

The highest airport on this list sits at 312 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At IAD when you get there the forecast at the estimated arrival, 9:08 pm EDT (01:08 UTC)

Wind from the west-northwest at 3 knots, visibility more than 6 miles, a few clouds at 5,000 feet VFR

The whole forecast for IAD

From Mon 8:00 am EDT (12:00 UTC): wind from the north-northwest at 10 knots, gusting to 17, visibility 6 miles, mist, scattered clouds at 1,800 feet, a broken layer at 4,500 feet
From Mon 9:00 am EDT (13:00 UTC): wind from the north-northwest at 10 knots, gusting to 18, visibility more than 6 miles, a broken layer at 2,000 feet, a broken layer at 3,500 feet
From Mon 12:00 pm EDT (16:00 UTC): wind from the north-northwest at 13 knots, gusting to 21, visibility more than 6 miles, scattered clouds at 2,500 feet, a broken layer at 4,000 feet
From Mon 2:00 pm EDT (18:00 UTC): wind from the north-northwest at 11 knots, gusting to 18, visibility more than 6 miles, a broken layer at 4,500 feet
From Mon 5:00 pm EDT (21:00 UTC): wind from the northwest at 7 knots, visibility more than 6 miles, scattered clouds at 5,000 feet
From Mon 8:00 pm EDT (00:00 UTC): wind from the west-northwest at 3 knots, visibility more than 6 miles, a few clouds at 5,000 feet
From Tue 10:00 am EDT (14:00 UTC): wind from the south at 5 knots, visibility more than 6 miles, scattered clouds at 25,000 feet

The forecast for STT, the departure

From Mon 8:00 am AST (12:00 UTC): wind from the east at 8 knots, visibility more than 6 miles, showers nearby, scattered clouds at 3,000 feet
From Mon 9:00 am AST (13:00 UTC): wind from the east-southeast at 12 knots, visibility more than 6 miles, showers nearby, a few clouds at 2,500 feet, scattered clouds at 3,500 feet
From Mon 6:00 pm AST (22:00 UTC): wind from the east at 7 knots, visibility more than 6 miles, showers nearby, scattered clouds at 3,000 feet

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

6/2698 VIEQUES, PR, Monday, January 19, 2026 through Friday, December 18, 2026 UTC 20 nm from the route, at the departure end · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 18 December · ZSU
4/9383 WASHINGTON, DC., USA 2 nm from the route, at the destination end · security · ZDC
6/8600 Sterling, VA, Monday, October 12, 2026 through Monday, October 12, 2026 Local 4 nm from the route, at the destination end · a VIP movement · today · ZDC

Daylight

Sunset at STT 5:59 pm AST (21:59 UTC), at IAD 6:36 pm EDT (22:36 UTC) (civil twilight ends 7:02 pm EDT (23:02 UTC)). At 120 knots the arrival at IAD is after sunset there (6:36 pm EDT (22:36 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 Caribbean · loop National Weather Service

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: Cyril E King Airport, Washington Dulles International.