Plan a flight · Mon 9:42 am CDT (14:42 UTC)

St. Louis Downtown Airport to Raleigh-Durham International CPS → RDU

567 nautical miles (652 statute miles) east on a straight line, true course 103°, about 103° magnetic at the departure end (variation 0E). At 120 knots that is 3 h 20 min at the quickest height in today's winds (34,000 ft, a 50-knot tailwind), arriving about 2:02 pm EDT (18:02 UTC). Right now CPS is VFR, wind from the southwest (220°) at 4 knots; RDU is VFR, wind from the northwest (310°) 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 348 to 437 nm out.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the route from 388 to 447 nm out.
AIRMET TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 6,000 ft. Over the route from 417 to 507 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 CPS.

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

B763 at 26,000 ft, 29 nm north, 6:57 am CDT (11:57 UTC): no turbulence, no icing. 139 nm along the route, 29 nm north 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
A320 at 28,000 ft, 14 nm south, 7:48 am CDT (12:48 UTC): no turbulence, no icing, clear from 28,000 ft to 60,000 ft. 149 nm along the route, 14 nm south of the line.
as filed, and in English
```
EVV UA /OV OWB/TM 1248/FL280/TP A320/SK SKC/TB NEG/IC NEG
```
Report
a routine report filed through EVV
Where
over OWB
Time
12:48 UTC
Height
at 28,000 ft
Aircraft
A320
Sky
clear
Turbulence
none
Icing
none
C525 at 41,000 ft, 22 nm north, 7:53 am CDT (12:53 UTC): no turbulence, -7 °C, wind 328° at 31 knots, remarks: smooth ride during the descent F410-F195. 159 nm along the route, 22 nm north of the line.
as filed, and in English
```
HNB UA /OV IIU280060 /TM 1253 /FL410 /TP C525 /TA M07 /WV 32831KT /TB NEG /RM SMOOTH RIDE DURD F410-F195
```
Report
a routine report filed through HNB
Where
60 nm west (280°) of IIU
Time
12:53 UTC
Height
at 41,000 ft
Aircraft
C525
Temperature
−7 °C
Wind
from 328° at 31 knots
Turbulence
none
Remarks
smooth ride during the descent F410-F195
B739 at 17,000 ft, 40 nm north, 9:13 am CDT (14:13 UTC): remarks: clear and smooth. 248 nm along the route, 40 nm north of the line.
as filed, and in English
```
LEX UA /OV FFT/TM 1413/FL170/TP B739/RM CLEAR AND SMOOTH
```
Report
a routine report filed through LEX
Where
over FFT
Time
14:13 UTC
Height
at 17,000 ft
Aircraft
B739
Remarks
clear and smooth
SR22 climbing, 33 nm north, 9:30 am CDT (14:30 UTC): a routine report with nothing remarked on. 258 nm along the route, 33 nm north of the line.
as filed, and in English
```
LEX UA /OV LEX180003/TM 1430/FLDURC/TP SR22/SK TOPS 017
```
Report
a routine report filed through LEX
Where
3 nm south (180°) of LEX
Time
14:30 UTC
Height
during the climb
Aircraft
SR22
Sky
tops 1,700 ft
BE58 climbing, 38 nm north, 9:08 am CDT (14:08 UTC): overcast above 500 ft. 258 nm along the route, 38 nm north of the line.
as filed, and in English
```
LEX UA /OV LEX045002/TM 1408/FLDURC/TP BE58/SK OVC 005
```
Report
a routine report filed through LEX
Where
2 nm northeast (045°) of LEX
Time
14:08 UTC
Height
during the climb
Aircraft
BE58
Sky
overcast from 500 ft
BE30 climbing, 34 nm north, 8:40 am CDT (13:40 UTC): a routine report with nothing remarked on. 258 nm along the route, 34 nm north of the line.
as filed, and in English
```
LEX UA /OV LEX180002/TM 1340/FLDURC/TP BE30/SK TOPS 013
```
Report
a routine report filed through LEX
Where
2 nm south (180°) of LEX
Time
13:40 UTC
Height
during the climb
Aircraft
BE30
Sky
tops 1,300 ft
E55P climbing, 35 nm north, 7:22 am CDT (12:22 UTC): a routine report with nothing remarked on. 258 nm along the route, 35 nm north of the line.
as filed, and in English
```
LEX UA /OV LEX270002/TM 1222/FLDURC/TP E55P/SK VV002 TOPS 018
```
Report
a routine report filed through LEX
Where
2 nm west (270°) of LEX
Time
12:22 UTC
Height
during the climb
Aircraft
E55P
Sky
sky obscured from 200 ft, tops 1,800 ft
A319 climbing, 39 nm north, 6:55 am CDT (11:55 UTC): a routine report with nothing remarked on. 258 nm along the route, 39 nm north of the line.
as filed, and in English
```
LEX UA /OV LEX045003/TM 1155/FLDURC/TP A319/SK TOPS 020
```
Report
a routine report filed through LEX
Where
3 nm northeast (045°) of LEX
Time
11:55 UTC
Height
during the climb
Aircraft
A319
Sky
tops 2,000 ft
E55P at 14,000 ft, 21 nm south, 7:13 am CDT (12:13 UTC): a routine report with nothing remarked on. 278 nm along the route, 21 nm south of the line.
as filed, and in English
```
LOZ UA /OV SME/TM 1213/FL140/TP E55P/SK TOP 010
```
Report
a routine report filed through LOZ
Where
over SME
Time
12:13 UTC
Height
at 14,000 ft
Aircraft
E55P
Sky
top 1,000 ft
C56X at 18,000 ft, 15 nm south, 8:01 am CDT (13:01 UTC): no turbulence, clear from 18,000 ft to 60,000 ft. 298 nm along the route, 15 nm south of the line.
as filed, and in English
```
LOZ UA /OV LOZ/TM 1301/FL180/TP C56X/SK SKC/TB NEG
```
Report
a routine report filed through LOZ
Where
over LOZ
Time
13:01 UTC
Height
at 18,000 ft
Aircraft
C56X
Sky
clear
Turbulence
none
C750 at 43,000 ft, 46 nm south, 8:14 am CDT (13:14 UTC): light turbulence, remarks: ztlfd 15. 417 nm along the route, 46 nm south of the line.
as filed, and in English
```
ATL UA /OV HMV170030/TM 1314/FL430/TP C750/TB LGT/RM ZTLFD 15
```
Report
a routine report filed through ATL
Where
30 nm south (170°) of HMV
Time
13:14 UTC
Height
at 43,000 ft
Aircraft
C750
Turbulence
light
Remarks
ztlfd 15
A321 at 30,000 ft, 34 nm south, 6:55 am CDT (11:55 UTC): light turbulence, remarks: ztlfd 43. 447 nm along the route, 34 nm south of the line.
as filed, and in English
```
ATL UA /OV BZM330010/TM 1155/FL300/TP A321/TB LGT/RM ZTLFD 43
```
Report
a routine report filed through ATL
Where
10 nm northwest (330°) of BZM
Time
11:55 UTC
Height
at 30,000 ft
Aircraft
A321
Turbulence
light
Remarks
ztlfd 43
BE33 at 7,000 ft, 40 nm southwest, 7:53 am CDT (12:53 UTC): light turbulence, remarks: ztlfd 45. 457 nm along the route, 40 nm southwest of the line.
as filed, and in English
```
ATL UA /OV BZM/TM 1253/FL070/TP BE33/TB LGT/RM ZTLFD 45
```
Report
a routine report filed through ATL
Where
over BZM
Time
12:53 UTC
Height
at 7,000 ft
Aircraft
BE33
Turbulence
light
Remarks
ztlfd 45

2 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 6 forecast points nearest it (STL, EVV, LOU, TRI, ROA, RDU). 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 14 kt	−14 kt		134 kt	4 h 14 min	2:56 pm EDT (18:56 UTC)
5,500 ft	300° at 14 kt	−14 kt	15 °C	134 kt	4 h 14 min	2:56 pm EDT (18:56 UTC)
7,500 ft	300° at 16 kt	−16 kt	12 °C	136 kt	4 h 10 min	2:52 pm EDT (18:52 UTC)
9,500 ft	290° at 18 kt	−19 kt	9 °C	139 kt	4 h 05 min	2:47 pm EDT (18:47 UTC)
11,500 ft	300° at 21 kt	−21 kt	7 °C	141 kt	4 h 01 min	2:43 pm EDT (18:43 UTC)
13,500 ft	300° at 23 kt	−23 kt	3 °C	143 kt	3 h 58 min	2:40 pm EDT (18:40 UTC)
15,500 ft	300° at 25 kt	−25 kt	-1 °C	145 kt	3 h 55 min	2:37 pm EDT (18:37 UTC)
17,500 ft	290° at 27 kt	−27 kt	-6 °C	147 kt	3 h 51 min	2:33 pm EDT (18:33 UTC)
18,000 ft FL180	290° at 28 kt	−28 kt	-7 °C	148 kt	3 h 50 min	2:32 pm EDT (18:32 UTC)
24,000 ft FL240	290° at 31 kt	−32 kt	-19 °C	152 kt	3 h 44 min	2:26 pm EDT (18:26 UTC)
30,000 ft FL300	290° at 42 kt	−42 kt	-33 °C	162 kt	3 h 30 min	2:12 pm EDT (18:12 UTC)
34,000 ft FL340	300° at 51 kt	−50 kt	-40 °C	170 kt	3 h 20 min	2:02 pm EDT (18:02 UTC)
39,000 ft FL390	310° at 49 kt	−46 kt	-49 °C	166 kt	3 h 25 min	2:07 pm EDT (18:07 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; 38 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°
EVV	used from 50 nm out; 53 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°
LOU	used from 199 nm out; 36 nm from the line	260/17	270/15 15°	260/19 10°	280/27 5°	280/30 -7°	280/29 -18°	280/44 -34°	290/56 -39°	310/56 -48°
TRI	used from 298 nm out; 70 nm from the line		340/26 15°	330/23 10°	330/23 6°	290/28 -6°	290/32 -19°	290/36 -34°	310/47 -41°	320/47 -49°
ROA	used from 447 nm out; 64 nm from the line	310/18	350/22 15°	350/21 9°	340/24 6°	320/31 -6°	310/34 -19°	310/39 -35°	310/46 -42°	310/33 -49°
RDU	used from 497 nm out; 45 nm from the line	340/12	330/17 14°	320/20 10°	330/25 6°	340/34 -6°	340/38 -19°	330/37 -32°	330/35 -42°	310/36 -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
CPS Cahokia/St Louis, IL	departure	VFR	from the southwest (220°) at 4 knots	10+ mi	none	412 ft	8:53 am CDT (13:53 UTC)
BLV Belleville, IL	20 nm out, 5 nm northwest of the line, tower	VFR	from the south-southwest (200°) at 3 knots	10+ mi	none	459 ft	13:55 UTC
MVN Mount Vernon, IL	60 nm out, 3 nm east of the line	VFR Sky: a few clouds at 200 feet	calm	10+ mi	none	480 ft	13:56 UTC
EVV Evansville, IN	129 nm out, 2 nm southwest of the line, tower	VFR	from the southwest (220°) at 4 knots	10+ mi	none	421 ft	13:54 UTC
EKX Elizabethtown, KY	209 nm out, 3 nm southwest of the line	VFR	calm	10+ mi	none	775 ft	14:35 UTC
DVK Danville, KY	258 nm out, 8 nm northeast of the line	low IFR Sky: overcast at 100 feet Weather: mist	from the south-southwest (200°) at 4 knots	1.25 mi	100 ft	1,021 ft	14:15 UTC
LOZ London, KY	298 nm out, 12 nm south of the line	VFR	from the north (010°) at 9 knots, gusting to 16	10+ mi	none	1,212 ft	20:18 UTC
TRI Bristol/Johnson/Kingsport, TN	388 nm out, 23 nm south of the line, tower	marginal VFR Sky: overcast at 2,100 feet	from the west-southwest (250°) at 5 knots	10+ mi	2,100 ft	1,518 ft	13:53 UTC
VJI Abingdon, VA	398 nm out, 7 nm southeast of the line	marginal VFR Sky: scattered clouds at 1,100 feet, a broken layer at 1,700 feet, overcast at 2,200 feet	from the west (270°) at 7 knots	10+ mi	1,700 ft	2,087 ft	14:35 UTC
GSO Greensboro, NC	507 nm out, 7 nm south of the line, tower	VFR Sky: a few clouds at 25,000 feet	from the west-northwest (300°) at 11 knots	10+ mi	none	925 ft	13:54 UTC
BUY Burlington, NC	527 nm out, 5 nm southeast of the line	VFR	from the west (260°) at 7 knots	10+ mi	none	616 ft	13:54 UTC
RDU Raleigh/Durham, NC	destination	VFR	from the northwest (310°) at 7 knots	10+ mi	none	435 ft	9:51 am EDT (13:51 UTC)

The highest airport on this list sits at 2,087 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At RDU when you get there the forecast at the estimated arrival, 2:02 pm EDT (18:02 UTC)

Wind from the northwest at 11 knots, gusting to 19, visibility more than 6 miles, scattered clouds at 3,000 feet, scattered clouds at 10,000 feet VFR

The whole forecast for RDU

From Mon 8:00 am EDT (12:00 UTC): wind from the west-southwest at 10 knots, visibility more than 6 miles, a few clouds at 7,000 feet
From Mon 10:00 am EDT (14:00 UTC): wind from the northwest at 11 knots, gusting to 19, visibility more than 6 miles, scattered clouds at 3,000 feet, scattered clouds at 10,000 feet
At times between Mon 11:00 am EDT (15:00 UTC) and 1:00 pm EDT (17:00 UTC): wind from the northwest at 12 knots, gusting to 22, a broken layer at 3,000 feet
From Mon 5:30 pm EDT (21:30 UTC): wind from the northwest at 3 knots, visibility more than 6 miles, scattered clouds at 25,000 feet

The forecast for CPS, the departure

From Mon 7:00 am CDT (12:00 UTC): wind light and variable, 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 7 knots, visibility more than 6 miles, clear skies

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

No temporary flight restriction on or near this route right now.

Daylight

Sunset at CPS 6:27 pm CDT (23:27 UTC), at RDU 6:43 pm EDT (22:43 UTC) (civil twilight ends 7:09 pm EDT (23:09 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 lower 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: St. Louis Downtown Airport, Raleigh-Durham International.