Plan a flight · Mon 4:43 am EDT (08:43 UTC)

Philadelphia International to St. Louis Lambert International PHL → STL

705 nautical miles (812 statute miles) west on a straight line, true course 269°, about 281° magnetic at the departure end (variation 12W). At 120 knots that is 6 h 14 min at the quickest height in today's winds (8,500 ft, a 7-knot headwind), arriving about 9:57 am CDT (14:57 UTC). Right now PHL is marginal VFR, wind from the north-northeast (030°) at 8 knots; STL is VFR, wind from the southwest (220°) at 6 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: 3,172 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, fog). Over the first 487 nm of the route.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the first 50 nm of the route.
AIRMET TANGO 5W: moderate turbulence below 18,000 ft (due to mountain wave) up to 10,000 ft. Near the route, 79 nm along the route.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 99 to 268 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 PHL.

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

C560 at 13,000 ft, 12 nm north, 2:38 am EDT (06:38 UTC): moderate turbulence, overcast above 19,000 ft, heavy rain, remarks: during the descent. At the departure end, 12 nm north of the line.
as filed, and in English
```
PHL UA /OV 20 NW PHL/TM 0638/FL130 /TP C560/SK OVC190/WX +RA/TB MOD/RM DURD
```
Report
a routine report filed through PHL
Where
20 northwest phl
Time
06:38 UTC
Height
at 13,000 ft
Aircraft
C560
Sky
overcast from 19,000 ft
Weather
heavy rain
Turbulence
moderate
Remarks
during the descent
K35R at 400 ft, 44 nm south, 3:45 am EDT (07:45 UTC): overcast above 40,000 ft. At the departure end, 44 nm south of the line.
as filed, and in English
```
DOV UA /OV KDOV /TM 0745 /FL 004 /TP K35R /SK OVC004-TOPUNKN
```
Report
a routine report filed through DOV
Where
over KDOV
Time
07:45 UTC
Height
at 400 ft
Aircraft
K35R
Sky
overcast from 400 ft, tops unknown
B737 at 800 ft, 41 nm south, 3:30 am EDT (07:30 UTC): remarks: bases 800 ft. 70 nm along the route, 41 nm south of the line.
as filed, and in English
```
BWI UA /OV BWI/TM 0730/FL008/TP B737/RM BASES 008
```
Report
a routine report filed through BWI
Where
over BWI
Time
07:30 UTC
Height
at 800 ft
Aircraft
B737
Remarks
bases 800 ft
B763 at 200 ft, 24 nm south, 4:05 am EDT (08:05 UTC): sky obscured, remarks: during the climb. 437 nm along the route, 24 nm south of the line.
as filed, and in English
```
CVG UA /OV CVG270001/TM 0805/FL002/TP B763/SK VV002/RM DURC
```
Report
a routine report filed through CVG
Where
1 nm west (270°) of CVG
Time
08:05 UTC
Height
at 200 ft
Aircraft
B763
Sky
sky obscured from 200 ft
Remarks
during the climb
B752 climbing, 23 nm south, 3:37 am EDT (07:37 UTC): overcast. 447 nm along the route, 23 nm south of the line.
as filed, and in English
```
CVG UA /OV 5 W CVG/TM 0737/FLDURC/TP B752/SK B001 OVC T015
```
Report
a routine report filed through CVG
Where
5 west cvg
Time
07:37 UTC
Height
during the climb
Aircraft
B752
Sky
B001 overcast T015

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 9 forecast points nearest it (ACY, PSB, AGC, CMH, CVG, IND, EVV, SPI, STL). 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 13 kt	+9 kt	12 °C	111 kt	6 h 21 min	10:04 am CDT (15:04 UTC)
6,500 ft	320° at 14 kt	+8 kt	12 °C	112 kt	6 h 18 min	10:01 am CDT (15:01 UTC)
8,500 ft	330° at 15 kt	+7 kt	9 °C	113 kt	6 h 14 min	9:57 am CDT (14:57 UTC)
10,500 ft	320° at 17 kt	+9 kt	5 °C	111 kt	6 h 21 min	10:04 am CDT (15:04 UTC)
12,500 ft	320° at 19 kt	+12 kt	2 °C	108 kt	6 h 32 min	10:15 am CDT (15:15 UTC)
14,500 ft	320° at 22 kt	+14 kt	-1 °C	106 kt	6 h 39 min	10:22 am CDT (15:22 UTC)
16,500 ft	320° at 25 kt	+16 kt	-5 °C	104 kt	6 h 47 min	10:30 am CDT (15:30 UTC)
18,000 ft FL180	320° at 27 kt	+17 kt	-8 °C	103 kt	6 h 51 min	10:34 am CDT (15:34 UTC)
24,000 ft FL240	310° at 31 kt	+21 kt	-20 °C	99 kt	7 h 07 min	10:50 am CDT (15:50 UTC)
30,000 ft FL300	320° at 37 kt	+23 kt	-34 °C	97 kt	7 h 16 min	10:59 am CDT (15:59 UTC)
34,000 ft FL340	310° at 51 kt	+34 kt	-42 °C	86 kt	8 h 12 min	11:55 am CDT (16:55 UTC)
39,000 ft FL390	320° at 48 kt	+30 kt	-51 °C	90 kt	7 h 50 min	11:33 am CDT (16:33 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
ACY	used from 0 nm out; 61 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°
PSB	used from 50 nm out; 84 nm from the line		020/21 12°	360/28 7°	360/29 1°	350/33 -10°	350/42 -22°	350/49 -37°	340/63 -43°	350/39 -52°
AGC	used from 149 nm out; 55 nm from the line	340/11	350/12 11°	360/25 7°	340/30 2°	340/41 -8°	340/44 -21°	350/59 -36°	340/68 -42°	340/50 -51°
CMH	used from 298 nm out; 39 nm from the line	320/12	340/26 15°	340/22 9°	320/24 3°	320/32 -7°	320/36 -20°	330/42 -35°	320/59 -44°	320/57 -50°
CVG	used from 397 nm out; 27 nm from the line	300/19	310/23 15°	320/20 9°	310/18 3°	300/26 -6°	290/36 -19°	310/32 -34°	310/53 -43°	310/61 -51°
IND	used from 497 nm out; 31 nm from the line	270/22	290/19 15°	270/19 8°	270/18 4°	290/28 -7°	280/35 -20°	270/37 -34°	300/51 -42°	300/61 -51°
EVV	used from 546 nm out; 64 nm from the line	270/25	290/17 15°	260/10 8°	270/16 5°	280/29 -6°	280/33 -19°	290/38 -33°	300/53 -41°	310/54 -51°
SPI	used from 596 nm out; 72 nm from the line	260/28	250/22 15°	250/14 9°	260/20 6°	280/27 -7°	280/34 -19°	280/48 -32°	280/59 -41°	300/60 -49°
STL	used from 646 nm out; 35 nm from the line	250/26	240/21 15°	240/22 11°	250/23 6°	270/28 -7°	260/30 -19°	280/52 -31°	280/57 -40°	300/57 -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
PHL Philadelphia, PA	departure	marginal VFR Sky: a broken layer at 1,100 feet, overcast at 1,700 feet Weather: light rain, mist	from the north-northeast (030°) at 8 knots	6 mi	1,100 ft	35 ft	3:54 am EDT (07:54 UTC)
ILG Wilmington, DE	20 nm out, 12 nm south of the line, tower	marginal VFR Sky: overcast at 1,100 feet	from the north (360°) at 11 knots	10+ mi	1,100 ft	79 ft	08:37 UTC
HGR Hagerstown, MD	119 nm out, 8 nm southeast of the line, tower	marginal VFR Sky: a broken layer at 2,000 feet, overcast at 2,500 feet	from the north-northwest (340°) at 6 knots	10+ mi	2,000 ft	703 ft	07:53 UTC
CBE Cumberland, MD	159 nm out, 11 nm south of the line	marginal VFR Sky: a broken layer at 2,400 feet, overcast at 3,100 feet	calm	10+ mi	2,400 ft	757 ft	08:35 UTC
MGW Morgantown, WV	219 nm out, 6 nm southeast of the line, tower	low IFR Sky: overcast at 300 feet Weather: mist	from the northwest (310°) at 3 knots	2.5 mi	300 ft	1,243 ft	08:07 UTC
PKB Parkersburg, WV	288 nm out, 18 nm south of the line, tower	marginal VFR Sky: scattered clouds at 1,000 feet, a broken layer at 1,400 feet, overcast at 2,100 feet	from the west (280°) at 5 knots	9 mi	1,400 ft	858 ft	08:33 UTC
ILN Wilmington, OH	397 nm out, 4 nm southeast of the line, tower	IFR Sky: overcast at 800 feet	from the west-northwest (300°) at 7 knots	10+ mi	800 ft	1,076 ft	07:54 UTC
LUK Cincinnati, OH	427 nm out, 20 nm south of the line, tower	low IFR Sky: sky obscured at 200 feet Weather: fog	calm	0.25 mi	200 ft	481 ft	07:53 UTC
BAK Columbus, IN	497 nm out, 3 nm southeast of the line, tower	VFR	calm	10+ mi	none	656 ft	01:45 UTC
SIV Sullivan, IN	566 nm out, 1 nm southwest of the line	no report just now				539 ft
ALN Alton/St Louis, IL	685 nm out, 7 nm northwest of the line, tower	VFR	from the south (180°) at 3 knots	10+ mi	none	543 ft	08:35 UTC
STL St Louis, MO	destination	VFR Sky: a few clouds at 25,000 feet	from the southwest (220°) at 6 knots	10+ mi	none	617 ft	2:51 am CDT (07:51 UTC)

The highest airport on this list sits at 1,243 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At STL when you get there the forecast at the estimated arrival, 9:57 am CDT (14:57 UTC)

Wind from the south-southwest at 7 knots, visibility more than 6 miles, scattered clouds at 25,000 feet VFR

The whole forecast for STL

From Mon 1:00 am CDT (06:00 UTC): wind from the south-southwest at 7 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
From Mon 11:00 am CDT (16:00 UTC): wind from the southwest at 12 knots, gusting to 20, visibility more than 6 miles, a few clouds at 25,000 feet
From Mon 6:00 pm CDT (23:00 UTC): wind from the southwest at 8 knots, visibility more than 6 miles, a few clouds at 25,000 feet

The forecast for PHL, the departure

From Mon 2:00 am EDT (06:00 UTC): wind from the north-northeast at 8 knots, visibility 5 miles, light rain showers, mist, thunderstorms nearby, overcast at 700 feet (thunderheads)
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

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

6/8029 Cincinnati, OH, Friday, October 9, 2026 through Monday, October 12, 2026 Local 17 nm from the route, 437 nm along the route · a VIP movement · until 12 October · ZID

Daylight

Sunset at PHL 6:26 pm EDT (22:26 UTC), at STL 6:27 pm CDT (23:27 UTC) (civil twilight ends 6:54 pm CDT (23:54 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 Northeast · loop National Weather Service

Radar now, the central Great Lakes · loop National Weather Service

Radar now, the upper Mississippi valley · 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: Philadelphia International, St. Louis Lambert International.