Plan a flight · Sun 8:05 pm CDT (01:05 UTC)

St. Louis Lambert International to Lehigh Valley International STL → ABE

698 nautical miles (803 statute miles) east on a straight line, true course 076°, about 077° magnetic at the departure end (variation 1W). At 120 knots that is 4 h 28 min at the quickest height in today's winds (34,000 ft, a 36-knot tailwind), arriving about 1:33 am EDT (05:33 UTC), after sunset at the destination. Right now STL is VFR, wind from the southeast (130°) at 7 knots; ABE is IFR, wind from the northeast (050°) 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: 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 route from 279 to 399 nm out.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 459 to 658 nm out.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the route from 469 to 668 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 180 nm of the route.
AIRMET TANGO 2W: 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 last 150 nm of the route.
AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the last 140 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 STL.

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

B38M at 29,000 ft, 27 nm south, 7:55 pm CDT (00:55 UTC): moderate turbulence above 29,000 ft, remarks: zob. 479 nm along the route, 27 nm south of the line.
as filed, and in English
```
MPG UA /OV AIR120030/TM 0055/FL290/TP B38M /TB OCNL MOD 290/RM ZOB
```
Report
a routine report filed through MPG
Where
30 nm southeast (120°) of AIR
Time
00:55 UTC
Height
at 29,000 ft
Aircraft
B38M
Turbulence
occasional moderate at 29,000 ft
Remarks
zob
A321 at 30,000 ft, 22 nm south, 6:49 pm CDT (23:49 UTC): moderate turbulence above 30,000 ft, remarks: zob. 519 nm along the route, 22 nm south of the line.
as filed, and in English
```
2G9 UA /OV IHD/TM 2349/FL300/TP A321/TB MOD 300/RM ZOB
```
Report
a routine report filed through 2G9
Where
over IHD
Time
23:49 UTC
Height
at 30,000 ft
Aircraft
A321
Turbulence
moderate at 30,000 ft
Remarks
zob
E145 at 12,000 ft, 29 nm south, 7:43 pm CDT (00:43 UTC): moderate turbulence. 658 nm along the route, 29 nm south of the line.
as filed, and in English
```
LNS UA /OV LRP/TM 0043/FL120/TP E145/TB CONS MOD
```
Report
a routine report filed through LNS
Where
over LRP
Time
00:43 UTC
Height
at 12,000 ft
Aircraft
E145
Turbulence
continuous moderate
A21N at 18,000 ft, 25 nm south, 7:38 pm CDT (00:38 UTC): moderate clear-air turbulence. At the destination end, 25 nm south of the line.
as filed, and in English
```
PTW UA /OV PTW/TM 0038/FL180/TP A21N/TB MOD CAT
```
Report
a routine report filed through PTW
Where
over PTW
Time
00:38 UTC
Height
at 18,000 ft
Aircraft
A21N
Turbulence
moderate clear-air turbulence
B38M at 25,000 ft, 47 nm southeast, 5:25 pm CDT (22:25 UTC): moderate turbulence. At the destination end, 47 nm southeast of the line.
as filed, and in English
```
TEB UA /OV 3958N 07457W/TM 2225/FL250/TP B38M/TB MOD
```
Report
a routine report filed through TEB
Where
3958N 07457W
Time
22:25 UTC
Height
at 25,000 ft
Aircraft
B38M
Turbulence
moderate
B38M at 23,700 ft, 17 nm south, 6:51 pm CDT (23:51 UTC): light turbulence. 140 nm along the route, 17 nm south of the line.
as filed, and in English
```
IND UA /OV TTH190030/TM 2351/FL237/TP B38M/TB LGT
```
Report
a routine report filed through IND
Where
30 nm south (190°) of TTH
Time
23:51 UTC
Height
at 23,700 ft
Aircraft
B38M
Turbulence
light
E170 at 23,000 ft, 38 nm north, 6:14 pm CDT (23:14 UTC): light turbulence. 190 nm along the route, 38 nm north of the line.
as filed, and in English
```
IND UA /OV VHP315020/TM 2314/FL230/TP E170/TB LGT
```
Report
a routine report filed through IND
Where
20 nm northwest (315°) of VHP
Time
23:14 UTC
Height
at 23,000 ft
Aircraft
E170
Turbulence
light
A333 at 4,000 ft, 40 nm south, 5:44 pm CDT (22:44 UTC): overcast. 249 nm along the route, 40 nm south of the line.
as filed, and in English
```
CVG UA /OV CVG270010/TM 2244/FL040/TP A333/SK B025 OVC T035
```
Report
a routine report filed through CVG
Where
10 nm west (270°) of CVG
Time
22:44 UTC
Height
at 4,000 ft
Aircraft
A333
Sky
B025 overcast T035
B744 climbing, 31 nm south, 7:02 pm CDT (00:02 UTC): light turbulence, overcast. 259 nm along the route, 31 nm south of the line.
as filed, and in English
```
CVG UA /OV 10 N CVG/TM 0002/FLDURC/TP B744/SK B022 OVC T036/TB LT TB SFC-036
```
Report
a routine report filed through CVG
Where
10 north cvg
Time
00:02 UTC
Height
during the climb
Aircraft
B744
Sky
B022 overcast T036
Turbulence
lt turbulence from the surface to 3,600 ft
B737 at 23,000 ft, 41 nm south, 6:51 pm CDT (23:51 UTC): light turbulence. 259 nm along the route, 41 nm south of the line.
as filed, and in English
```
IND UA /OV CVG/TM 2351/FL230/TP B737/TB LGT
```
Report
a routine report filed through IND
Where
over CVG
Time
23:51 UTC
Height
at 23,000 ft
Aircraft
B737
Turbulence
light
B739 climbing, 40 nm south, 6:31 pm CDT (23:31 UTC): overcast. 259 nm along the route, 40 nm south of the line.
as filed, and in English
```
CVG UA /OV 5 W CVG/TM 2331/FLDURC/TP B739/SK B026 OVC T036
```
Report
a routine report filed through CVG
Where
5 west cvg
Time
23:31 UTC
Height
during the climb
Aircraft
B739
Sky
B026 overcast T036
B753 at 32,000 ft, 41 nm south, 5:11 pm CDT (22:11 UTC): no turbulence. 259 nm along the route, 41 nm south of the line.
as filed, and in English
```
IND UA /OV CVG/TM 2211/FL320/TP B753/TB NEG
```
Report
a routine report filed through IND
Where
over CVG
Time
22:11 UTC
Height
at 32,000 ft
Aircraft
B753
Turbulence
none
E145 climbing, 9 nm north, 6:51 pm CDT (23:51 UTC): a routine report with nothing remarked on. 289 nm along the route, 9 nm north of the line.
as filed, and in English
```
CMH UA /OV DAY/TM 2351/FLDURC/TP E145/SK B005 T035
```
Report
a routine report filed through CMH
Where
over DAY
Time
23:51 UTC
Height
during the climb
Aircraft
E145
Sky
B005 T035
A321 at 21,000 ft, 29 nm north, 7:23 pm CDT (00:23 UTC): no turbulence. 309 nm along the route, 29 nm north of the line.
as filed, and in English
```
IND UA /OV ROD/TM 0023/FL210/TP A321/TB NEG
```
Report
a routine report filed through IND
Where
over ROD
Time
00:23 UTC
Height
at 21,000 ft
Aircraft
A321
Turbulence
none

16 more routine reports are on the map.

Winds aloft along the route, and the time en route the forecast for use 20:00–03:00 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 9 forecast points nearest it (STL, SPI, EVV, IND, CVG, CMH, AGC, PSB, AVP). 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 2 kt	0		120 kt	5 h 49 min	2:54 am EDT (06:54 UTC)
5,500 ft	310° at 9 kt	−5 kt	13 °C	125 kt	5 h 35 min	2:40 am EDT (06:40 UTC)
7,500 ft	320° at 11 kt	−6 kt	11 °C	126 kt	5 h 32 min	2:37 am EDT (06:37 UTC)
9,500 ft	320° at 11 kt	−5 kt	8 °C	125 kt	5 h 35 min	2:40 am EDT (06:40 UTC)
11,500 ft	320° at 11 kt	−5 kt	4 °C	125 kt	5 h 35 min	2:40 am EDT (06:40 UTC)
13,500 ft	320° at 12 kt	−6 kt	0 °C	126 kt	5 h 32 min	2:37 am EDT (06:37 UTC)
15,500 ft	310° at 13 kt	−7 kt	-4 °C	127 kt	5 h 30 min	2:35 am EDT (06:35 UTC)
17,500 ft	310° at 14 kt	−9 kt	-9 °C	129 kt	5 h 25 min	2:30 am EDT (06:30 UTC)
18,000 ft FL180	300° at 14 kt	−9 kt	-10 °C	129 kt	5 h 25 min	2:30 am EDT (06:30 UTC)
24,000 ft FL240	300° at 15 kt	−11 kt	-21 °C	131 kt	5 h 20 min	2:25 am EDT (06:25 UTC)
30,000 ft FL300	270° at 30 kt	−28 kt	-34 °C	148 kt	4 h 43 min	1:48 am EDT (05:48 UTC)
34,000 ft FL340	270° at 38 kt	−36 kt	-40 °C	156 kt	4 h 28 min	1:33 am EDT (05:33 UTC)
39,000 ft FL390	270° at 38 kt	−36 kt	-49 °C	156 kt	4 h 28 min	1:33 am EDT (05:33 UTC)

Based on data from the 11th at 18:00 UTC; valid on the 12th at 00:00 UTC for use 20:00 to 03:00 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
STL	used from 0 nm out; 25 nm from the line	210/13	260/16 17°	270/21 10°	280/24 5°	310/20 -7°	320/22 -18°	320/44 -33°	320/59 -43°	310/69 -51°
SPI	used from 50 nm out; 63 nm from the line	210/13	260/11 17°	270/18 10°	290/21 4°	310/20 -8°	330/25 -19°	320/49 -34°	320/60 -44°	320/59 -50°
EVV	used from 100 nm out; 72 nm from the line	310/13	340/26 16°	330/29 10°	330/32 4°	330/30 -9°	340/38 -20°	330/60 -35°	320/57 -41°	330/39 -48°
IND	used from 150 nm out; 27 nm from the line	320/10	350/30 16°	350/32 10°	350/30 4°	340/31 -10°	340/42 -21°	340/49 -37°	320/46 -41°	320/47 -47°
CVG	used from 249 nm out; 41 nm from the line	350/13	340/20 13°	340/22 8°	350/30 3°	340/30 -9°	340/38 -21°	330/37 -35°	320/38 -40°	310/35 -47°
CMH	used from 299 nm out; 31 nm from the line	340/14	320/13 12°	350/12 8°	360/10 2°	350/27 -10°	340/20 -22°	320/31 -35°	270/25 -39°	260/32 -48°
AGC	used from 399 nm out; 69 nm from the line	140/12	350/10 12°	L/V 9°	L/V 3°	200/11 -11°	220/21 -22°	220/47 -33°	230/51 -39°	230/45 -48°
PSB	used from 549 nm out; 26 nm from the line		260/13 13°	220/12 8°	220/11 4°	230/27 -11°	210/31 -21°	220/73 -32°	220/75 -40°	230/66 -50°
AVP	used from 648 nm out; 45 nm from the line	110/36	190/34 13°	230/11 8°	230/16 4°	230/26 -8°	220/40 -19°	230/73 -33°	230/98 -41°	230/87 -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
STL St Louis, MO	departure	VFR Sky: a few clouds at 25,000 feet	from the southeast (130°) at 7 knots	10+ mi	none	617 ft	7:51 pm CDT (00:51 UTC)
ALN Alton/St Louis, IL	20 nm out, 6 nm northwest of the line, tower	VFR	from the southeast (140°) at 6 knots	10+ mi	none	543 ft	00:50 UTC
RSV Robinson, IL	130 nm out, 14 nm south of the line	VFR	from the southwest (230°) at 3 knots	10+ mi	none	461 ft	00:55 UTC
HUF Terre Haute, IN	150 nm out, 9 nm north of the line, tower	VFR	calm	10+ mi	none	589 ft	00:53 UTC
GEZ Shelbyville, IN	219 nm out, 2 nm northwest of the line	VFR	calm	10+ mi	none	802 ft	00:53 UTC
TZR Columbus, OH	339 nm out, 4 nm east of the line, tower	marginal VFR Sky: scattered clouds at 700 feet, overcast at 1,900 feet	from the northwest (310°) at 5 knots	10+ mi	1,900 ft	904 ft	00:55 UTC
CMH Columbus, OH	359 nm out, 5 nm west of the line, tower	IFR Sky: overcast at 900 feet	from the northwest (310°) at 6 knots	10+ mi	900 ft	815 ft	00:51 UTC
HLG Wheeling, WV	459 nm out, 3 nm south of the line, tower	marginal VFR Sky: overcast at 1,900 feet	from the northeast (050°) at 6 knots	10+ mi	1,900 ft	1,194 ft	00:53 UTC
LBE Latrobe, PA	519 nm out, 5 nm southwest of the line, tower	marginal VFR Sky: overcast at 1,600 feet	from the northeast (040°) at 11 knots	10+ mi	1,600 ft	1,198 ft	00:47 UTC
CXY Harrisburg, PA	628 nm out, 21 nm south of the line, tower	IFR Sky: overcast at 800 feet	from the north-northeast (030°) at 6 knots	9 mi	800 ft	346 ft	00:56 UTC
RDG Reading, PA	668 nm out, 15 nm southeast of the line, tower	marginal VFR Sky: overcast at 1,200 feet	from the northeast (050°) at 6 knots	10+ mi	1,200 ft	343 ft	00:54 UTC
ABE Allentown, PA	destination	IFR Sky: a broken layer at 800 feet, overcast at 1,400 feet	from the northeast (050°) at 7 knots	10+ mi	800 ft	393 ft	8:51 pm EDT (00:51 UTC)

The highest airport on this list sits at 1,198 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At ABE when you get there the forecast at the estimated arrival, 1:33 am EDT (05:33 UTC)

Wind from the north at 8 knots, visibility 5 miles, light rain, mist, overcast at 500 feet IFR

The whole forecast for ABE

From Sun 8:00 pm EDT (00:00 UTC): wind from the north-northeast at 8 knots, visibility 6 miles, light rain, mist, overcast at 800 feet
At times between Sun 8:00 pm EDT (00:00 UTC) and 10:00 pm EDT (02:00 UTC): visibility 2 miles, rain, mist
From Mon 1:00 am EDT (05:00 UTC): wind from the north at 8 knots, visibility 5 miles, light rain, mist, overcast at 500 feet
From Mon 9:00 am EDT (13:00 UTC): wind from the north at 10 knots, visibility 5 miles, mist, overcast at 1,500 feet
From Mon 11:00 am EDT (15:00 UTC): wind from the north at 10 knots, visibility more than 6 miles, overcast at 2,500 feet
From Mon 2:00 pm EDT (18:00 UTC): wind from the northwest at 10 knots, visibility more than 6 miles, overcast at 5,000 feet
From Mon 6:00 pm EDT (22:00 UTC): wind from the west-northwest at 8 knots, visibility more than 6 miles, scattered clouds at 25,000 feet

The forecast for STL, the departure

From Sun 7:00 pm CDT (00:00 UTC): wind from the south at 5 knots, visibility more than 6 miles, clear skies
From Mon 1:00 am CDT (06:00 UTC): wind from the south-southwest at 6 knots, visibility more than 6 miles, a few 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

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

6/8829 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local 24 nm from the route, 469 nm along the route · a VIP movement · today · ZOB
6/8587 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local 24 nm from the route, 469 nm along the route · a VIP movement · today · ZOB

Daylight

Sunset at STL 6:27 pm CDT (23:27 UTC), at ABE 6:26 pm EDT (22:26 UTC) (civil twilight ends 6:53 pm EDT (22:53 UTC)). At 120 knots the arrival at ABE is before sunrise there (7:09 am EDT (11:09 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 upper Mississippi valley · loop National Weather Service

Radar now, the central Great Lakes · 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: St. Louis Lambert International, Lehigh Valley International.