Plan a flight · Sun 8:02 pm CDT (01:02 UTC)

St. Louis Lambert International to Southern Cross Airport STL → C01

716 nautical miles (824 statute miles) east on a straight line, true course 081°, about 082° magnetic at the departure end (variation 1W). At 120 knots that is 4 h 34 min at the quickest height in today's winds (39,000 ft, a 37-knot tailwind), arriving about 1:36 am EDT (05:36 UTC), after sunset at the destination. 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 298 to 437 nm out.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 427 to 596 nm out.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the route from 467 to 636 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 209 nm of the route.
AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the last 109 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). Near the route, 626 nm along 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, 15 nm north, 7:55 pm CDT (00:55 UTC): moderate turbulence above 29,000 ft, remarks: zob. 477 nm along the route, 15 nm north 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
UAL2761 at 31,000 ft, 19 nm south, 6:57 pm CDT (23:57 UTC): moderate turbulence, wind 218° at 58 knots. 497 nm along the route, 19 nm south of the line.
as filed, and in English
```
ARP UAL2761 3917N 07949W 2357 F310 218/058KT TB CONT MOD TURB IC
```
Report
a routine report filed through ARP
A321 at 30,000 ft, 22 nm north, 6:49 pm CDT (23:49 UTC): moderate turbulence above 30,000 ft, remarks: zob. 517 nm along the route, 22 nm north 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
E170 at 22,500 ft, 26 nm south, 6:44 pm CDT (23:44 UTC): moderate clear-air turbulence from 18,000 ft to 22,500 ft, remarks: during the descent FRDMM7 star. 547 nm along the route, 26 nm south of the line.
as filed, and in English
```
OKV UA /OV ESL100020/TM 2344/FL225/TP E170/TB CONS MOD CAT 180-225/RM DURD FRDMM7 STAR
```
Report
a routine report filed through OKV
Where
20 nm east (100°) of ESL
Time
23:44 UTC
Height
at 22,500 ft
Aircraft
E170
Turbulence
continuous moderate clear-air turbulence from 18,000 ft to 22,500 ft
Remarks
during the descent FRDMM7 star
E145 at 12,000 ft, 28 nm north, 7:43 pm CDT (00:43 UTC): moderate turbulence. 656 nm along the route, 28 nm north 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
E75L at 20,000 ft, 3 nm northeast, 7:41 pm CDT (00:41 UTC): moderate turbulence above 20,000 ft. 686 nm along the route, 3 nm northeast of the line.
as filed, and in English
```
ILG UA /OV DQO/TM 0041/FL200/TP E75L/TB MOD 200
```
Report
a routine report filed through ILG
Where
over DQO
Time
00:41 UTC
Height
at 20,000 ft
Aircraft
E75L
Turbulence
moderate at 20,000 ft
A21N at 18,000 ft, 34 nm north, 7:38 pm CDT (00:38 UTC): moderate clear-air turbulence. 686 nm along the route, 34 nm north 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
BCS3 at 19,000 ft, 26 nm south, 7:18 pm CDT (00:18 UTC): moderate turbulence above 19,000 ft, light rime icing, -9 °C. At the destination end, 26 nm south of the line.
as filed, and in English
```
DOV UA /OV ENO/TM 0018/FL190/TP BCS3/TA M09/TB MOD 170 190 /IC LGT RIME
```
Report
a routine report filed through DOV
Where
over ENO
Time
00:18 UTC
Height
at 19,000 ft
Aircraft
BCS3
Temperature
−9 °C
Turbulence
moderate at 17,000 ft at 19,000 ft
Icing
light rime
B38M at 25,000 ft, 19 nm north, 5:25 pm CDT (22:25 UTC): moderate turbulence. At the destination end, 19 nm north 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, 5 nm south, 6:51 pm CDT (23:51 UTC): light turbulence. 139 nm along the route, 5 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
B739 climbing, 18 nm south, 6:31 pm CDT (23:31 UTC): overcast. 258 nm along the route, 18 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
A333 at 4,000 ft, 18 nm south, 5:44 pm CDT (22:44 UTC): overcast. 258 nm along the route, 18 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, 9 nm south, 7:02 pm CDT (00:02 UTC): light turbulence, overcast. 268 nm along the route, 9 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, 19 nm south, 6:51 pm CDT (23:51 UTC): light turbulence. 268 nm along the route, 19 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

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 10 forecast points nearest it (STL, SPI, EVV, IND, CVG, CMH, CRW, EKN, PSB, 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	300° at 9 kt	−7 kt		127 kt	5 h 38 min	2:40 am EDT (06:40 UTC)
5,500 ft	300° at 13 kt	−10 kt	13 °C	130 kt	5 h 30 min	2:32 am EDT (06:32 UTC)
7,500 ft	300° at 13 kt	−10 kt	11 °C	130 kt	5 h 30 min	2:32 am EDT (06:32 UTC)
9,500 ft	310° at 12 kt	−8 kt	8 °C	128 kt	5 h 36 min	2:38 am EDT (06:38 UTC)
11,500 ft	310° at 11 kt	−7 kt	5 °C	127 kt	5 h 38 min	2:40 am EDT (06:40 UTC)
13,500 ft	310° at 12 kt	−8 kt	0 °C	128 kt	5 h 36 min	2:38 am EDT (06:38 UTC)
15,500 ft	300° at 13 kt	−10 kt	-4 °C	130 kt	5 h 30 min	2:32 am EDT (06:32 UTC)
17,500 ft	300° at 15 kt	−12 kt	-8 °C	132 kt	5 h 25 min	2:27 am EDT (06:27 UTC)
18,000 ft FL180	300° at 15 kt	−12 kt	-9 °C	132 kt	5 h 25 min	2:27 am EDT (06:27 UTC)
24,000 ft FL240	290° at 18 kt	−15 kt	-20 °C	135 kt	5 h 18 min	2:20 am EDT (06:20 UTC)
30,000 ft FL300	270° at 30 kt	−28 kt	-34 °C	148 kt	4 h 50 min	1:52 am EDT (05:52 UTC)
34,000 ft FL340	260° at 37 kt	−35 kt	-40 °C	155 kt	4 h 37 min	1:39 am EDT (05:39 UTC)
39,000 ft FL390	270° at 39 kt	−37 kt	-49 °C	157 kt	4 h 34 min	1:36 am EDT (05:36 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; 68 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 99 nm out; 61 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 149 nm out; 38 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 248 nm out; 18 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 298 nm out; 45 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°
CRW	used from 398 nm out; 70 nm from the line	320/16	310/16 12°	320/12 7°	320/12 2°	330/15 -11°	280/11 -22°	230/26 -30°	240/33 -37°	240/37 -47°
EKN	used from 447 nm out; 46 nm from the line		270/18 13°	310/5 7°	140/7 3°	210/16 -9°	220/41 -20°	210/57 -32°	220/57 -38°	230/49 -47°
PSB	used from 547 nm out; 75 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°
ACY	used from 646 nm out; 66 nm from the line	230/15	230/22 15°	230/31 11°	230/27 6°	230/40 -7°	230/51 -17°	230/71 -31°	230/81 -41°	230/86 -53°

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	Elevation
STL St Louis, MO	departure	no report just now	617 ft
ALN Alton/St Louis, IL	20 nm out, 7 nm northwest of the line, tower	no report just now	543 ft
SIV Sullivan, IN	139 nm out, 2 nm northwest of the line	no report just now	539 ft
BMG Bloomington, IN	179 nm out, 2 nm southwest of the line, tower	no report just now	845 ft
LUK Cincinnati, OH	278 nm out, 14 nm south of the line, tower	no report just now	481 ft
ILN Wilmington, OH	308 nm out, 3 nm north of the line, tower	no report just now	1,076 ft
PKB Parkersburg, WV	417 nm out, 11 nm south of the line, tower	no report just now	858 ft
MGW Morgantown, WV	487 nm out, 4 nm northeast of the line, tower	no report just now	1,243 ft
CBE Cumberland, MD	547 nm out, 4 nm west of the line	no report just now	757 ft
HGR Hagerstown, MD	586 nm out, 6 nm northeast of the line, tower	no report just now	703 ft
ILG Wilmington, DE	686 nm out, 3 nm northeast of the line, tower	no report just now	79 ft
C01 Williamstown, NJ	destination	no report just now	145 ft

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 C01 when you get there the forecast at the estimated arrival, 1:36 am EDT (05:36 UTC)

C01 has no terminal forecast; use the nearest airport that does.

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 12 nm from the route, 268 nm along the route · a VIP movement · until 12 October · ZID
4/9383 WASHINGTON, DC., USA 18 nm from the route, 626 nm along the route · security · ZDC
6/8800 Baltimore, MD, Saturday, October 17, 2026 through Sunday, October 18, 2026 UTC 22 nm from the route, 646 nm along the route · drones kept away from a public gathering · starts Saturday 17 October · ZDC

Daylight

Sunset at STL 6:27 pm CDT (23:27 UTC), at C01 6:25 pm EDT (22:25 UTC) (civil twilight ends 6:52 pm EDT (22:52 UTC)). At 120 knots the arrival at C01 is before sunrise there (7:06 am EDT (11:06 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, Southern Cross Airport.