Plan a flight · Sun 7:48 pm CDT (00:48 UTC)

St. Louis Downtown Airport to Republic Airport CPS → FRG

783 nautical miles (902 statute miles) east on a straight line, true course 075°, about 075° magnetic at the departure end (variation 0E). At 120 knots that is 4 h 55 min at the quickest height in today's winds (34,000 ft, a 39-knot tailwind), arriving about 1:43 am EDT (05:43 UTC), after sunset at the destination. Right now CPS is VFR, wind from the south-southeast (150°) at 3 knots; FRG is IFR, wind from the northeast (040°) at 10 knots, gusting to 22. 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

SIGMET E17E: thunderstorms (a convective SIGMET) up to 31,000 ft, moving from the west at 15 knots, until 8:55 pm CDT (01:55 UTC). Over the route from 377 to 466 nm out.

as issued

WSUS31 KKCI 112355
MKCE WST 112355
CONVECTIVE SIGMET 17E
VALID UNTIL 0155Z
PA MD VA NC WV OH KY
FROM 30WSW EWC-20E RIC-70NNE ILM-70W BKW-10ESE APE-30WSW EWC
AREA TS MOV FROM 28015KT. TOPS TO FL310.

SIGMET E16E: thunderstorms (a convective SIGMET) up to 32,000 ft, moving from the southwest at 25 knots, until 8:55 pm CDT (01:55 UTC). Over the route from 684 to 754 nm out.

as issued

WSUS31 KKCI 112355
MKCE WST 112355
CONVECTIVE SIGMET 16E
VALID UNTIL 0155Z
NY NJ PA DE MD VA DC WV AND NJ NY CSTL WTRS
FROM SAX-30SE JFK-10N DCA-60ENE EKN-SAX
AREA EMBD TS MOV FROM 22025KT. TOPS TO FL320.

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 278 to 407 nm out.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 446 to 645 nm out.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the route from 466 to 664 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 278 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 route from 545 to 734 nm out.
AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the last 228 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 CPS.

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

urgent CL60 at 800 ft, 21 nm north, 5:44 pm CDT (22:44 UTC): moderate chop turbulence, remarks: low-level wind shear +10/-10 during the descent onf runway 16. At the destination end, 21 nm north of the line.
as filed, and in English
```
HPN UUA /OV HPN/TM 2244/FL008/TP CL60/TB MOD CHOP/RM LLWS +10/-10 DURD ONF RWY16
```
Report
an urgent report filed through HPN
Where
over HPN
Time
22:44 UTC
Height
at 800 ft
Aircraft
CL60
Turbulence
moderate chop
Remarks
low-level wind shear +10/-10 during the descent onf runway 16
urgent E55P at 100 ft, 21 nm north, 5:16 pm CDT (22:16 UTC): moderate chop turbulence, remarks: low-level wind shear +10/-10 knots during the descent on final runway 16. At the destination end, 21 nm north of the line.
as filed, and in English
```
HPN UUA /OV HPN/TM 2216/FL001/TP E55P/TB MOD CHOP/RM LLWS +10/-10 KTS DURD ON FINAL RWY16
```
Report
an urgent report filed through HPN
Where
over HPN
Time
22:16 UTC
Height
at 100 ft
Aircraft
E55P
Turbulence
moderate chop
Remarks
low-level wind shear +10/-10 knots during the descent on final runway 16
A321 at 30,000 ft, 17 nm south, 6:49 pm CDT (23:49 UTC): moderate turbulence above 30,000 ft, remarks: zob. 506 nm along the route, 17 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, 25 nm south, 7:43 pm CDT (00:43 UTC): moderate turbulence. 645 nm along the route, 25 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, 22 nm south, 7:38 pm CDT (00:38 UTC): moderate clear-air turbulence. 684 nm along the route, 22 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, 40 nm south, 5:25 pm CDT (22:25 UTC): moderate turbulence. 714 nm along the route, 40 nm south 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
CRJ7 at 15,000 ft, 23 nm south, 7:07 pm CDT (00:07 UTC): moderate chop turbulence. 744 nm along the route, 23 nm south of the line.
as filed, and in English
```
BLM UA /OV COL/TM 0007/FL150/TP CRJ7/TB MOD CHOP
```
Report
a routine report filed through BLM
Where
over COL
Time
00:07 UTC
Height
at 15,000 ft
Aircraft
CRJ7
Turbulence
moderate chop
A32N , 6 nm southeast, 6:01 pm CDT (23:01 UTC): moderate turbulence. At the destination end, 6 nm southeast of the line.
as filed, and in English
```
JFK UA /OV JFK10008/TM 2301/FL3000/TP A32N/TB MOD TURB
```
Report
a routine report filed through JFK
Where
JFK10008
Time
23:01 UTC
Height
at 300,000 ft
Aircraft
A32N
Turbulence
moderate turbulence
A333 at 3,000 ft, 30 nm south, 6:10 pm CDT (23:10 UTC): moderate turbulence. At the destination end, 30 nm south of the line.
as filed, and in English
```
JFK UA /OV JFK180025/TM 2310/FL030/TP A333/TB MOD TURB
```
Report
a routine report filed through JFK
Where
25 nm south (180°) of JFK
Time
23:10 UTC
Height
at 3,000 ft
Aircraft
A333
Turbulence
moderate turbulence
BCS3 at 4,000 ft, 22 nm northeast, 7:42 pm CDT (00:42 UTC): moderate turbulence, imc. At the destination end, 22 nm northeast of the line.
as filed, and in English
```
BDR UA /OV BDR180010/TM 0042/FL040/TP BCS3/WX IMC/TB MOD
```
Report
a routine report filed through BDR
Where
10 nm south (180°) of BDR
Time
00:42 UTC
Height
at 4,000 ft
Aircraft
BCS3
Weather
instrument conditions
Turbulence
moderate
TBM9 descending, 15 nm east, 6:45 pm CDT (23:45 UTC): moderate turbulence, a broken layer above 700 ft. At the destination end, 15 nm east of the line.
as filed, and in English
```
ISP UA /OV ISP/TM 2345/FLDURD/TP TBM9/SK BKN007/TB MOD
```
Report
a routine report filed through ISP
Where
over ISP
Time
23:45 UTC
Height
during the descent
Aircraft
TBM9
Sky
a broken layer from 700 ft
Turbulence
moderate
TBM9 descending, 15 nm east, 5:55 pm CDT (22:55 UTC): moderate turbulence, a broken layer above 700 ft. At the destination end, 15 nm east of the line.
as filed, and in English
```
ISP UA /OV ISP/TM 2255/FLDURD/TP TBM9/SK BKN007/TB MOD
```
Report
a routine report filed through ISP
Where
over ISP
Time
22:55 UTC
Height
during the descent
Aircraft
TBM9
Sky
a broken layer from 700 ft
Turbulence
moderate
B38M at 23,700 ft, 7 nm southeast, 6:51 pm CDT (23:51 UTC): light turbulence. 129 nm along the route, 7 nm southeast 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, 48 nm north, 6:14 pm CDT (23:14 UTC): light turbulence. 179 nm along the route, 48 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

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, EVV, IND, CVG, CMH, AGC, PSB, AVP, JFK). 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	120° at 3 kt	+3 kt		117 kt	6 h 42 min	3:30 am EDT (07:30 UTC)
5,500 ft	310° at 6 kt	−3 kt	13 °C	123 kt	6 h 22 min	3:10 am EDT (07:10 UTC)
7,500 ft	310° at 9 kt	−5 kt	11 °C	125 kt	6 h 16 min	3:04 am EDT (07:04 UTC)
9,500 ft	310° at 11 kt	−6 kt	8 °C	126 kt	6 h 13 min	3:01 am EDT (07:01 UTC)
11,500 ft	310° at 12 kt	−7 kt	5 °C	127 kt	6 h 10 min	2:58 am EDT (06:58 UTC)
13,500 ft	310° at 13 kt	−8 kt	0 °C	128 kt	6 h 07 min	2:55 am EDT (06:55 UTC)
15,500 ft	300° at 14 kt	−10 kt	-4 °C	130 kt	6 h 01 min	2:49 am EDT (06:49 UTC)
17,500 ft	290° at 15 kt	−11 kt	-8 °C	131 kt	5 h 59 min	2:47 am EDT (06:47 UTC)
18,000 ft FL180	290° at 15 kt	−12 kt	-9 °C	132 kt	5 h 56 min	2:44 am EDT (06:44 UTC)
24,000 ft FL240	280° at 17 kt	−14 kt	-20 °C	134 kt	5 h 51 min	2:39 am EDT (06:39 UTC)
30,000 ft FL300	270° at 33 kt	−31 kt	-34 °C	151 kt	5 h 11 min	1:59 am EDT (05:59 UTC)
34,000 ft FL340	260° at 41 kt	−39 kt	-40 °C	159 kt	4 h 55 min	1:43 am EDT (05:43 UTC)
39,000 ft FL390	260° at 41 kt	−39 kt	-49 °C	159 kt	4 h 55 min	1:43 am EDT (05:43 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; 34 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°
EVV	used from 50 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 149 nm out; 30 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; 34 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; 28 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 397 nm out; 65 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 545 nm out; 30 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 645 nm out; 47 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°
JFK	used from 694 nm out; 48 nm from the line	140/43	170/35 13°	230/18 9°	250/25 5°	240/40 -7°	230/50 -17°	230/75 -31°	230/78 -41°	230/88 -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	Wind	Visibility	Ceiling	Elevation	Reported
CPS Cahokia/St Louis, IL	departure	VFR	from the south-southeast (150°) at 3 knots	10+ mi	none	412 ft	6:53 pm CDT (23:53 UTC)
GRE Greenville, IL	40 nm out, 6 nm north of the line	no report just now				540 ft
HUF Terre Haute, IN	139 nm out, 20 nm north of the line, tower	VFR	from the northeast (050°) at 3 knots	10+ mi	none	589 ft	23:53 UTC
BMG Bloomington, IN	169 nm out, 6 nm south of the line, tower	VFR	calm	10+ mi	none	845 ft	23:53 UTC
ILN Wilmington, OH	298 nm out, 16 nm southeast of the line, tower	IFR Sky: overcast at 700 feet Weather: mist	from the northwest (320°) at 8 knots	5 mi	700 ft	1,076 ft	23:54 UTC
LCK Columbus, OH	347 nm out, 3 nm west of the line, tower	marginal VFR Sky: overcast at 1,200 feet	from the north-northwest (330°) at 7 knots	10+ mi	1,200 ft	743 ft	23:55 UTC
HLG Wheeling, WV	456 nm out, 6 nm northwest of the line, tower	marginal VFR Sky: overcast at 1,800 feet	from the north (010°) at 6 knots	10+ mi	1,800 ft	1,194 ft	23:53 UTC
JST Johnstown, PA	536 nm out, 1 nm northwest of the line, tower	low IFR Sky: sky obscured at 200 feet Weather: fog	from the northeast (050°) at 6 knots	0.25 mi	200 ft	2,284 ft	23:54 UTC
CXY Harrisburg, PA	625 nm out, 16 nm south of the line, tower	IFR Sky: overcast at 800 feet	from the northeast (050°) at 7 knots, gusting to 15	10+ mi	800 ft	346 ft	23:56 UTC
ABE Allentown, PA	694 nm out, 4 nm northwest of the line, tower	IFR Sky: a broken layer at 800 feet, overcast at 1,500 feet	from the northeast (050°) at 11 knots	10+ mi	800 ft	393 ft	00:31 UTC
LGA New York, NY	764 nm out, 4 nm north of the line, tower	IFR Sky: a broken layer at 900 feet, overcast at 1,500 feet Weather: light rain, mist	from the east-northeast (060°) at 23 knots, gusting to 31	2 mi	900 ft	20 ft	00:34 UTC
FRG Farmingdale, NY	destination	IFR Sky: a broken layer at 800 feet, a broken layer at 1,300 feet, overcast at 2,200 feet Weather: light rain, mist	from the northeast (040°) at 10 knots, gusting to 22	4 mi	800 ft	81 ft	8:37 pm EDT (00:37 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 FRG when you get there the forecast at the estimated arrival, 1:43 am EDT (05:43 UTC)

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

The forecast for CPS, the departure

From Sun 7:00 pm CDT (00:00 UTC): wind light and variable, visibility more than 6 miles, clear skies
From Mon 3:00 am CDT (08:00 UTC): wind light and variable, visibility 3 miles, mist, a few clouds at 25,000 feet
At times between Mon 3:00 am CDT (08:00 UTC) and 6:00 am CDT (11:00 UTC): visibility 1 mile, mist
From Mon 6:00 am CDT (11:00 UTC): wind from the southwest at 10 knots, 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 23 nm from the route, 268 nm along the route · a VIP movement · until 12 October · ZID
5/2811 NEW YORK, NY, Monday, October 20, 2025 through Tuesday, October 20, 2026 Local 5 nm from the route, at the destination end · security · until 20 October · ZNY

Daylight

Sunset at CPS 6:27 pm CDT (23:27 UTC), at FRG 6:18 pm EDT (22:18 UTC) (civil twilight ends 6:45 pm EDT (22:45 UTC)). At 120 knots the arrival at FRG is before sunrise there (7:01 am EDT (11:01 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 Downtown Airport, Republic Airport.