Plan a flight · Mon 7:09 am EDT (11:09 UTC)

Piedmont Triad International to Philadelphia International GSO → PHL

317 nautical miles (365 statute miles) northeast on a straight line, true course 043°, about 051° magnetic at the departure end (variation 8W). At 120 knots that is 2 h 17 min at the quickest height in today's winds (39,000 ft, a 19-knot tailwind), arriving about 9:26 am EDT (13:26 UTC). Right now GSO is VFR, wind from the west-southwest (250°) at 8 knots; PHL is IFR, wind from the north-northwest (340°) at 10 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: 2,090 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 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 first 188 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. Near the route, at the departure end.
AIRMET TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 6,000 ft. Near the route, 99 nm along 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 139 nm of the route.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 24,000 ft to 33,000 ft. Over the last 79 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 GSO.

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

E75L at 30,000 ft, 34 nm southeast, 6:51 am EDT (10:51 UTC): moderate turbulence above 30,000 ft. 40 nm along the route, 34 nm southeast of the line.
as filed, and in English
```
RDU UA /OV RDU360020/TM 1051/FLF300/TP E75L/TB MOD 300
```
Report
a routine report filed through RDU
Where
20 nm north (360°) of RDU
Time
10:51 UTC
Height
at F300
Aircraft
E75L
Turbulence
moderate at 30,000 ft
E75S at 15,000 ft, 14 nm northwest, 6:35 am EDT (10:35 UTC): moderate turbulence, remarks: dca arrival from 12,000 ft to 15,000 ft during the descent. 268 nm along the route, 14 nm northwest of the line.
as filed, and in English
```
BWI UA /OV BAL060030/TM 1035/FL150/TP E75S/TB MOD/RM DCA ARRIVAL 120-150 DURD
```
Report
a routine report filed through BWI
Where
30 nm northeast (060°) of BAL
Time
10:35 UTC
Height
at 15,000 ft
Aircraft
E75S
Turbulence
moderate
Remarks
dca arrival from 12,000 ft to 15,000 ft during the descent
E170 at 29,000 ft, 19 nm southeast, 6:58 am EDT (10:58 UTC): moderate turbulence from 19,000 ft to 29,000 ft. 278 nm along the route, 19 nm southeast of the line.
as filed, and in English
```
DOV UA /OV ENO/TM 1058/FLF290/TP E170/TB MOD 290-190
```
Report
a routine report filed through DOV
Where
over ENO
Time
10:58 UTC
Height
at F290
Aircraft
E170
Turbulence
moderate from 29,000 ft to 19,000 ft
E170 at 23,000 ft, 19 nm southeast, 6:28 am EDT (10:28 UTC): moderate turbulence above 23,000 ft. 278 nm along the route, 19 nm southeast of the line.
as filed, and in English
```
DOV UA /OV ENO/TM 1028/FLF230/TP E170/TB MOD 230
```
Report
a routine report filed through DOV
Where
over ENO
Time
10:28 UTC
Height
at F230
Aircraft
E170
Turbulence
moderate at 23,000 ft
B39M descending, 33 nm northwest, 6:42 am EDT (10:42 UTC): overcast above 4,000 ft. 208 nm along the route, 33 nm northwest 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
B737 at 700 ft, 17 nm northwest, 5:33 am EDT (09:33 UTC): remarks: light rain. 238 nm along the route, 17 nm northwest 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
B738 climbing, 3 nm northwest, 6:33 am EDT (10:33 UTC): remarks: during the climb runway 01 ilg bases 700 ft. 297 nm along the route, 3 nm northwest of the line.
as filed, and in English
```
ILG UA /OV KILG/TM 1033/FLDURC/TP B738/RM DURC RY01 ILG BASES 007
```
Report
a routine report filed through ILG
Where
over KILG
Time
10:33 UTC
Height
during the climb
Aircraft
B738
Remarks
during the climb runway 01 ilg bases 700 ft
B739 at 20,000 ft, 3 nm northwest, 6:05 am EDT (10:05 UTC): light rime icing, -10 °C. 297 nm along the route, 3 nm northwest of the line.
as filed, and in English
```
ILG UA /OV DQO/TM 1005/FL200/TP B739/TA M10/IC LGT RIME
```
Report
a routine report filed through ILG
Where
over DQO
Time
10:05 UTC
Height
at 20,000 ft
Aircraft
B739
Temperature
−10 °C
Icing
light rime

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 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 4 forecast points nearest it (RDU, ROA, RIC, ACY). 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	340° at 27 kt	+12 kt		108 kt	2 h 56 min	10:05 am EDT (14:05 UTC)
5,500 ft	340° at 25 kt	+11 kt		109 kt	2 h 54 min	10:03 am EDT (14:03 UTC)
7,500 ft	340° at 26 kt	+11 kt	10 °C	109 kt	2 h 54 min	10:03 am EDT (14:03 UTC)
9,500 ft	340° at 27 kt	+11 kt	7 °C	109 kt	2 h 54 min	10:03 am EDT (14:03 UTC)
11,500 ft	330° at 26 kt	+8 kt	4 °C	112 kt	2 h 50 min	9:59 am EDT (13:59 UTC)
13,500 ft	330° at 26 kt	+6 kt	0 °C	114 kt	2 h 47 min	9:56 am EDT (13:56 UTC)
15,500 ft	320° at 27 kt	+4 kt	-4 °C	116 kt	2 h 44 min	9:53 am EDT (13:53 UTC)
17,500 ft	320° at 28 kt	+2 kt	-8 °C	118 kt	2 h 41 min	9:50 am EDT (13:50 UTC)
18,000 ft FL180	320° at 28 kt	+2 kt	-9 °C	118 kt	2 h 41 min	9:50 am EDT (13:50 UTC)
24,000 ft FL240	320° at 29 kt	+1 kt	-21 °C	119 kt	2 h 40 min	9:49 am EDT (13:49 UTC)
30,000 ft FL300	300° at 32 kt	−10 kt	-34 °C	130 kt	2 h 26 min	9:35 am EDT (13:35 UTC)
34,000 ft FL340	290° at 32 kt	−12 kt	-39 °C	132 kt	2 h 24 min	9:33 am EDT (13:33 UTC)
39,000 ft FL390	290° at 39 kt	−19 kt	-47 °C	139 kt	2 h 17 min	9:26 am EDT (13:26 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
RDU	used from 0 nm out; 50 nm from the line	330/30	340/24 12°	330/26 7°	320/30 3°	330/39 -8°	310/30 -20°	300/33 -33°	310/34 -39°	310/41 -47°
ROA	used from 50 nm out; 56 nm from the line	310/32	340/32 14°	350/25 9°	340/24 3°	340/42 -8°	340/52 -20°	350/62 -34°	350/64 -39°	310/44 -48°
RIC	used from 99 nm out; 40 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°
ACY	used from 248 nm out; 63 nm from the line	350/12	340/12 11°	340/12 6°	340/13 2°	270/10 -10°	240/17 -23°	230/46 -33°	230/46 -40°	240/46 -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
GSO Greensboro, NC	departure	VFR Sky: a few clouds at 3,400 feet, a few clouds at 12,000 feet	from the west-southwest (250°) at 8 knots	10+ mi	none	925 ft	6:54 am EDT (10:54 UTC)
DAN Danville, VA	40 nm out, 2 nm east of the line	VFR	from the west-southwest (250°) at 7 knots	10+ mi	none	571 ft	10:53 UTC
LYH Lynchburg, VA	79 nm out, 25 nm northwest of the line, tower	VFR	variable at 3 knots	10+ mi	none	938 ft	10:54 UTC
FVX Farmville, VA	109 nm out, 5 nm southwest of the line	marginal VFR Sky: scattered clouds at 200 feet Weather: mist	calm	3 mi	none	415 ft	10:55 UTC
EZF Fredericksburg, VA	178 nm out, 5 nm west of the line	VFR Sky: scattered clouds at 1,400 feet, overcast at 4,200 feet	from the north-northwest (340°) at 6 knots	10+ mi	4,200 ft	85 ft	10:55 UTC
DCA Washington, DC	218 nm out, 15 nm northwest of the line, tower	marginal VFR Sky: a broken layer at 1,100 feet, overcast at 3,000 feet	from the north-northwest (340°) at 11 knots	10+ mi	1,100 ft	14 ft	10:52 UTC
MTN Baltimore, MD	258 nm out, 15 nm northwest 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	22 ft	10:45 UTC
ILG Wilmington, DE	297 nm out, 3 nm northwest of the line, tower	IFR Sky: overcast at 800 feet	from the north-northwest (340°) at 10 knots	10+ mi	800 ft	79 ft	10:51 UTC
PHL Philadelphia, PA	destination	IFR Sky: overcast at 800 feet	from the north-northwest (340°) at 10 knots	10+ mi	800 ft	35 ft	6:54 am EDT (10:54 UTC)

The highest airport on this list sits at 938 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At PHL when you get there the forecast at the estimated arrival, 9:26 am EDT (13:26 UTC)

Wind from the north at 10 knots, visibility 5 miles, mist, overcast at 800 feet IFR

The whole forecast for PHL

From Mon 5:00 am EDT (09:00 UTC): wind from the north-northeast at 8 knots, visibility 5 miles, light rain showers, mist, overcast at 700 feet
At times between Mon 5:00 am EDT (09:00 UTC) and 7:00 am EDT (11:00 UTC): visibility 6 miles, mist, a broken layer at 1,500 feet
From Mon 7:00 am EDT (11:00 UTC): wind from the north at 10 knots, visibility 5 miles, mist, overcast at 800 feet
From Mon 10:00 am EDT (14:00 UTC): wind from the north at 10 knots, gusting to 15, visibility 6 miles, mist, a broken layer at 2,500 feet
From Mon 12:00 pm EDT (16:00 UTC): wind from the north-northwest at 10 knots, gusting to 15, visibility more than 6 miles, scattered clouds at 5,000 feet
From Mon 6:00 pm EDT (22:00 UTC): wind from the northwest at 8 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
From Mon 9:00 pm EDT (01:00 UTC): wind light and variable, visibility more than 6 miles, a few clouds at 25,000 feet

The forecast for GSO, the departure

From Mon 2:00 am EDT (06:00 UTC): wind from the west at 9 knots, visibility more than 6 miles, scattered clouds at 4,000 feet, scattered clouds at 10,000 feet
From Mon 10:00 am EDT (14:00 UTC): wind from the northwest at 11 knots, gusting to 19, visibility more than 6 miles, scattered clouds at 3,000 feet, a broken layer at 4,500 feet
From Mon 5:30 pm EDT (21:30 UTC): wind from the northwest at 4 knots, visibility more than 6 miles, scattered clouds at 25,000 feet

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

4/9383 WASHINGTON, DC., USA 3 nm from the route, 218 nm along the route · security · ZDC
6/8800 Baltimore, MD, Saturday, October 17, 2026 through Sunday, October 18, 2026 UTC 18 nm from the route, 248 nm along the route · drones kept away from a public gathering · starts Saturday 17 October · ZDC

Daylight

Sunset at GSO 6:48 pm EDT (22:48 UTC), at PHL 6:26 pm EDT (22:26 UTC) (civil twilight ends 6:53 pm EDT (22:53 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: Piedmont Triad International, Philadelphia International.