Plan a flight · Mon 9:39 am CDT (14:39 UTC)

St. Louis Lambert International to Morristown Municipal STL → MMU

745 nautical miles (858 statute miles) east on a straight line, true course 075°, about 076° magnetic at the departure end (variation 1W). At 120 knots that is 4 h 36 min at the quickest height in today's winds (34,000 ft, a 42-knot tailwind), arriving about 3:15 pm EDT (19:15 UTC). Right now STL is VFR, wind from the southwest (220°) at 12 knots; MMU is VFR, wind from the northeast (040°) at 3 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 288 to 576 nm out.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the route from 457 to 656 nm out.
AIRMET TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 6,000 ft. Near the route, 576 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). Near the route, at the destination end.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 24,000 ft to 40,000 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 STL.

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

B763 at 26,000 ft, 50 nm south, 6:57 am CDT (11:57 UTC): no turbulence, no icing. 139 nm along the route, 50 nm south of the line.
as filed, and in English
```
EVV UA /OV OWB360045/TM 1157/FL260/TP B763/TB NEG/IC NEG
```
Report
a routine report filed through EVV
Where
45 nm north (360°) of OWB
Time
11:57 UTC
Height
at 26,000 ft
Aircraft
B763
Turbulence
none
Icing
none
EMBRAER at 400 ft, 18 nm south, 8:37 am CDT (13:37 UTC): haze, remarks: ils runway 23 ceiling at 400 ft. 209 nm along the route, 18 nm south of the line.
as filed, and in English
```
BAK UA /OV KBAK/TM 1337/FL004/TP EMBRAER/WX HZ/RM ILS RWY 23 CEILING 004
```
Report
a routine report filed through BAK
Where
over KBAK
Time
13:37 UTC
Height
at 400 ft
Aircraft
EMBRAER
Weather
haze
Remarks
ils runway 23 ceiling at 400 ft
G280 at 200 ft, 18 nm south, 8:10 am CDT (13:10 UTC): fog, remarks: ils runway 23 runway environment aquired at at 20,000 ft feet above ground. 209 nm along the route, 18 nm south of the line.
as filed, and in English
```
BAK UA /OV KBAK/TM 1310/FL002/TP G280/WX FG/RM ILS RWY 23 RUNWAY ENVIRONMENT AQUIRED AT 200 FEET AGL
```
Report
a routine report filed through BAK
Where
over KBAK
Time
13:10 UTC
Height
at 200 ft
Aircraft
G280
Weather
fog
Remarks
ils runway 23 runway environment aquired at at 20,000 ft feet above ground
BCS3 climbing, 43 nm south, 9:18 am CDT (14:18 UTC): overcast from 20,000 ft to 500 ft. 258 nm along the route, 43 nm south of the line.
as filed, and in English
```
CVG UA /OV CVG/TM 1418/FLDURC/TP BCS3/SK OVC002 TOPS 005
```
Report
a routine report filed through CVG
Where
over CVG
Time
14:18 UTC
Height
during the climb
Aircraft
BCS3
Sky
overcast from 200 ft, tops 500 ft
E75S descending, 43 nm south, 8:50 am CDT (13:50 UTC): a broken layer above 20,000 ft, remarks: cvg arrival, runway insight at at 25,000 ft feet. 258 nm along the route, 43 nm south of the line.
as filed, and in English
```
CVG UA /OV CVG/TM 1350/FLDURD/TP E75S/SK BKN002/RM CVG ARRIVAL, RUNWAY INSIGHT AT 250 FEET
```
Report
a routine report filed through CVG
Where
over CVG
Time
13:50 UTC
Height
during the descent
Aircraft
E75S
Sky
a broken layer from 200 ft
Remarks
cvg arrival, runway insight at at 25,000 ft feet
E75L descending, 43 nm south, 8:38 am CDT (13:38 UTC): sky obscured, remarks: runway 18L arrival, picked up approach lights at minimums, at 100 ft. 258 nm along the route, 43 nm south of the line.
as filed, and in English
```
CVG UA /OV CVG/TM 1338/FLDURD/TP E75L/SK VV001/RM RWY 18L ARRIVAL, PICKED UP APPROACH LIGHTS AT MINIMUMS, 001
```
Report
a routine report filed through CVG
Where
over CVG
Time
13:38 UTC
Height
during the descent
Aircraft
E75L
Sky
sky obscured from 100 ft
Remarks
runway 18L arrival, picked up approach lights at minimums, at 100 ft
CRJ9 descending, 43 nm south, 8:21 am CDT (13:21 UTC): sky obscured, remarks: runway 18R als insight at at 15,000 ft feet. 258 nm along the route, 43 nm south of the line.
as filed, and in English
```
CVG UA /OV CVG/TM 1321/FLDURD/TP CRJ9/SK VV001/RM RWY 18R ALS INSIGHT AT 150 FEET
```
Report
a routine report filed through CVG
Where
over CVG
Time
13:21 UTC
Height
during the descent
Aircraft
CRJ9
Sky
sky obscured from 100 ft
Remarks
runway 18R als insight at at 15,000 ft feet
E75S at 100 ft, 43 nm south, 7:57 am CDT (12:57 UTC): sky obscured. 258 nm along the route, 43 nm south of the line.
as filed, and in English
```
CVG UA /OV CVG/TM 1257/FL001/TP E75S/SK VV001
```
Report
a routine report filed through CVG
Where
over CVG
Time
12:57 UTC
Height
at 100 ft
Aircraft
E75S
Sky
sky obscured from 100 ft
B38M climbing, 43 nm south, 7:10 am CDT (12:10 UTC): a routine report with nothing remarked on. 258 nm along the route, 43 nm south of the line.
as filed, and in English
```
CVG UA /OV CVG/TM 1210/FLDURC/TP B38M/SK TOPS 005/WX 1/16SM
```
Report
a routine report filed through CVG
Where
over CVG
Time
12:10 UTC
Height
during the climb
Aircraft
B38M
Sky
tops 500 ft
Weather
1/16SM
A320 climbing, 43 nm south, 6:55 am CDT (11:55 UTC): a routine report with nothing remarked on. 258 nm along the route, 43 nm south of the line.
as filed, and in English
```
CVG UA /OV CVG/TM 1155/FLDURC/TP A320/SK TOPS 008
```
Report
a routine report filed through CVG
Where
over CVG
Time
11:55 UTC
Height
during the climb
Aircraft
A320
Sky
tops 800 ft
E75L climbing, 43 nm south, 6:42 am CDT (11:42 UTC): sky obscured. 258 nm along the route, 43 nm south of the line.
as filed, and in English
```
CVG UA /OV CVG/TM 1142/FLDURC/TP E75L/SK VV001
```
Report
a routine report filed through CVG
Where
over CVG
Time
11:42 UTC
Height
during the climb
Aircraft
E75L
Sky
sky obscured from 100 ft
C25C , 24 nm south, 7:05 am CDT (12:05 UTC): remarks: hao arrival, had ground contact but no forward visibility. 278 nm along the route, 24 nm south of the line.
as filed, and in English
```
CVG UA /OV HAO/TM 1205/FLDURD/TP C25C/WX NO FORWARD VIS/RM HAO ARRIVAL, HAD GROUND CONTACT BUT NO FORWARD VIS
```
Report
a routine report filed through CVG
Where
over HAO
Time
12:05 UTC
Height
during the descent
Aircraft
C25C
Weather
no, forward, visibility
Remarks
hao arrival, had ground contact but no forward visibility
E75L at 26,000 ft, 9 nm northwest, 8:19 am CDT (13:19 UTC): no turbulence up to 26,000 ft, no icing up to 26,000 ft. 288 nm along the route, 9 nm northwest of the line.
as filed, and in English
```
DAY UA /OV DQN180005/TM 1319/FL260/TP E75L/TB NEG BLO 260/IC NEG BLO 260
```
Report
a routine report filed through DAY
Where
5 nm south (180°) of DQN
Time
13:19 UTC
Height
at 26,000 ft
Aircraft
E75L
Turbulence
no below 26,000 ft
Icing
no below 26,000 ft
A320 at 3,000 ft, 7 nm northwest, 8:35 am CDT (13:35 UTC): a routine report with nothing remarked on. 298 nm along the route, 7 nm northwest of the line.
as filed, and in English
```
CMH UA /OV DAY/TM 1335/FL030/TP A320/SK BUNKN-TOP013
```
Report
a routine report filed through CMH
Where
over DAY
Time
13:35 UTC
Height
at 3,000 ft
Aircraft
A320
Sky
BUNKN-TOP013

16 more routine reports are on the map.

Winds aloft along the route, and the time en route the forecast for use 14:00–21:00 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	270° at 16 kt	−16 kt		136 kt	5 h 29 min	4:08 pm EDT (20:08 UTC)
5,500 ft	290° at 16 kt	−15 kt	14 °C	135 kt	5 h 31 min	4:10 pm EDT (20:10 UTC)
7,500 ft	290° at 17 kt	−15 kt	12 °C	135 kt	5 h 31 min	4:10 pm EDT (20:10 UTC)
9,500 ft	300° at 19 kt	−15 kt	9 °C	135 kt	5 h 31 min	4:10 pm EDT (20:10 UTC)
11,500 ft	310° at 21 kt	−15 kt	5 °C	135 kt	5 h 31 min	4:10 pm EDT (20:10 UTC)
13,500 ft	300° at 23 kt	−17 kt	1 °C	137 kt	5 h 26 min	4:05 pm EDT (20:05 UTC)
15,500 ft	300° at 24 kt	−19 kt	-2 °C	139 kt	5 h 22 min	4:01 pm EDT (20:01 UTC)
17,500 ft	300° at 26 kt	−20 kt	-6 °C	140 kt	5 h 19 min	3:58 pm EDT (19:58 UTC)
18,000 ft FL180	300° at 26 kt	−21 kt	-7 °C	141 kt	5 h 17 min	3:56 pm EDT (19:56 UTC)
24,000 ft FL240	290° at 34 kt	−30 kt	-20 °C	150 kt	4 h 58 min	3:37 pm EDT (19:37 UTC)
30,000 ft FL300	290° at 43 kt	−37 kt	-35 °C	157 kt	4 h 45 min	3:24 pm EDT (19:24 UTC)
34,000 ft FL340	300° at 52 kt	−42 kt	-42 °C	162 kt	4 h 36 min	3:15 pm EDT (19:15 UTC)
39,000 ft FL390	310° at 56 kt	−40 kt	-49 °C	160 kt	4 h 39 min	3:18 pm EDT (19:18 UTC)

Based on data from the 12th at 12:00 UTC; valid on the 12th at 18:00 UTC for use 14:00 to 21:00 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	240/25	240/21 15°	260/21 12°	270/21 7°	280/25 -7°	280/39 -19°	290/65 -31°	290/70 -38°	290/59 -48°
SPI	used from 50 nm out; 62 nm from the line	230/24	240/21 15°	260/11 12°	280/19 6°	270/23 -8°	280/34 -20°	290/55 -33°	290/62 -37°	290/55 -47°
EVV	used from 99 nm out; 73 nm from the line	270/15	250/15 14°	260/24 11°	270/28 6°	280/30 -7°	280/34 -18°	290/48 -33°	290/59 -38°	300/56 -48°
IND	used from 149 nm out; 27 nm from the line	260/18	250/20 15°	260/26 9°	290/28 5°	290/30 -7°	280/40 -20°	280/46 -35°	290/53 -38°	300/58 -47°
CVG	used from 248 nm out; 42 nm from the line	260/20	280/18 15°	270/19 8°	290/30 5°	280/31 -7°	290/37 -19°	280/46 -35°	290/55 -40°	310/57 -48°
CMH	used from 298 nm out; 32 nm from the line	270/15	280/20 14°	280/21 9°	290/26 4°	290/29 -7°	290/38 -20°	280/44 -35°	280/48 -42°	310/61 -48°
AGC	used from 447 nm out; 20 nm from the line	270/15	320/17 14°	320/22 9°	340/23 4°	310/25 -8°	290/30 -19°	280/40 -36°	290/49 -45°	300/53 -49°
PSB	used from 547 nm out; 23 nm from the line		330/23 14°	340/24 9°	340/25 3°	320/24 -8°	300/29 -20°	310/39 -36°	310/52 -46°	310/56 -50°
AVP	used from 646 nm out; 41 nm from the line	330/21	340/24 14°	350/27 9°	350/25 3°	330/29 -8°	310/31 -20°	330/41 -36°	330/57 -46°	320/55 -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 southwest (220°) at 12 knots	10+ mi	none	617 ft	8:51 am CDT (13:51 UTC)
ALN Alton/St Louis, IL	20 nm out, 5 nm northwest of the line, tower	VFR	from the south-southwest (200°) at 5 knots	10+ mi	none	543 ft	13:50 UTC
HUF Terre Haute, IN	149 nm out, 7 nm north of the line, tower	VFR	from the south (170°) at 4 knots	10+ mi	none	589 ft	13:53 UTC
IND Indianapolis, IN	199 nm out, 13 nm north of the line, tower	VFR Sky: a few clouds at 24,000 feet, a broken layer at 30,000 feet	from the south-southwest (200°) at 6 knots	10+ mi	30,000 ft	796 ft	13:54 UTC
DAY Dayton, OH	298 nm out, 7 nm northwest of the line, tower	low IFR Sky: a broken layer at 300 feet, a broken layer at 700 feet, a broken layer at 25,000 feet Weather: mist	from the south (190°) at 6 knots	2 mi	300 ft	1,009 ft	14:12 UTC
CMH Columbus, OH	358 nm out, 3 nm west of the line, tower	marginal VFR Sky: overcast at 1,000 feet	from the west (260°) at 4 knots	9 mi	1,000 ft	815 ft	14:06 UTC
VTA Newark, OH	378 nm out, 3 nm southwest of the line	marginal VFR Sky: overcast at 1,000 feet	from the west-southwest (250°) at 7 knots	10+ mi	1,000 ft	883 ft	13:54 UTC
AGC Pittsburgh, PA	497 nm out, 4 nm west of the line, tower	low IFR Sky: a broken layer at 300 feet, a broken layer at 1,000 feet, overcast at 1,300 feet Weather: mist	from the west-southwest (240°) at 6 knots	2.5 mi	300 ft	1,251 ft	14:32 UTC
JST Johnstown, PA	547 nm out, 10 nm south of the line, tower	low IFR Sky: overcast at 200 feet Weather: mist	from the west-northwest (290°) at 10 knots	2 mi	200 ft	2,284 ft	14:24 UTC
ZER Pottsville, PA	656 nm out, 2 nm north of the line	IFR Sky: a broken layer at 700 feet, overcast at 2,700 feet	from the northwest (310°) at 9 knots, gusting to 15	10+ mi	700 ft	1,729 ft	14:15 UTC
ABE Allentown, PA	696 nm out, 6 nm southeast of the line, tower	VFR Sky: a few clouds at 1,800 feet, scattered clouds at 3,500 feet	from the northwest (320°) at 11 knots	10+ mi	none	393 ft	13:51 UTC
MMU Morristown, NJ	destination	VFR Sky: a broken layer at 3,500 feet, a broken layer at 4,600 feet	from the northeast (040°) at 3 knots	10+ mi	3,500 ft	186 ft	9:50 am EDT (13:50 UTC)

The highest airport on this list sits at 2,284 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At MMU when you get there the forecast at the estimated arrival, 3:15 pm EDT (19:15 UTC)

MMU has no terminal forecast; use the nearest airport that does.

The forecast for STL, the departure

From Mon 7:00 am CDT (12:00 UTC): wind from the southwest at 6 knots, visibility more than 6 miles, a few clouds at 25,000 feet
From Mon 10:00 am CDT (15:00 UTC): wind from the southwest at 12 knots, gusting to 20, visibility more than 6 miles, clear skies

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 21 nm from the route, 467 nm along the route · a VIP movement · today · ZOB
6/8587 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local 21 nm from the route, 467 nm along the route · a VIP movement · today · ZOB
5/2811 NEW YORK, NY, Monday, October 20, 2025 through Tuesday, October 20, 2026 Local 19 nm from the route, at the destination end · security · until 20 October · ZNY

Daylight

Sunset at STL 6:27 pm CDT (23:27 UTC), at MMU 6:22 pm EDT (22:22 UTC) (civil twilight ends 6:49 pm EDT (22:49 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, Morristown Municipal.