Plan a flight · Sun 8:14 pm CDT (01:14 UTC)

St. Louis Lambert International to Raleigh-Durham International STL → RDU

579 nautical miles (666 statute miles) east on a straight line, true course 104°, about 105° magnetic at the departure end (variation 1W). At 120 knots that is 3 h 46 min at the quickest height in today's winds (34,000 ft, a 34-knot tailwind), arriving about 1:00 am EDT (05:00 UTC), after sunset at the destination. Right now STL is VFR, wind from the southeast (130°) at 7 knots; RDU is VFR, wind from the southwest (230°) at 11 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: 1,320 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 259 to 409 nm out.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 309 to 489 nm out.
AIRMET TANGO 5W: moderate turbulence below 18,000 ft (due to mountain wave) up to 7,000 ft. Over the route from 409 to 499 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 STL.

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

A321 at 30,000 ft, 5 nm southwest, 6:45 pm CDT (23:45 UTC): moderate turbulence. 359 nm along the route, 5 nm southwest of the line.
as filed, and in English
```
IND UA /OV AZQ170020/TM 2345/FL300/TP A321/TB MOD
```
Report
a routine report filed through IND
Where
20 nm south (170°) of AZQ
Time
23:45 UTC
Height
at 30,000 ft
Aircraft
A321
Turbulence
moderate
PA46 at 23,000 ft, 20 nm southwest, 6:28 pm CDT (23:28 UTC): moderate chop turbulence from 22,000 ft to 23,000 ft, remarks: ZTLFD-44. 429 nm along the route, 20 nm southwest of the line.
as filed, and in English
```
TRI UA /OV HMV090010/TM 2328/FL230/TP PA46/TB LGT- MOD CHOP 230-220/RM ZTLFD-44
```
Report
a routine report filed through TRI
Where
10 nm east (090°) of HMV
Time
23:28 UTC
Height
at 23,000 ft
Aircraft
PA46
Turbulence
light moderate chop from 23,000 ft to 22,000 ft
Remarks
ZTLFD-44
A319 at 25,000 ft, 44 nm south, 6:14 pm CDT (23:14 UTC): no turbulence. 220 nm along the route, 44 nm south of the line.
as filed, and in English
```
IND UA /OV BWG070017/TM 2314/FL250/TP A319/TB NEG
```
Report
a routine report filed through IND
Where
17 nm east (070°) of BWG
Time
23:14 UTC
Height
at 25,000 ft
Aircraft
A319
Turbulence
none
E170 climbing, 24 nm north, 5:26 pm CDT (22:26 UTC): a routine report with nothing remarked on. 220 nm along the route, 24 nm north of the line.
as filed, and in English
```
SDF UA /OV SDF/TM 2226/FLDURC/TP E170/SK B022 T036
```
Report
a routine report filed through SDF
Where
over SDF
Time
22:26 UTC
Height
during the climb
Aircraft
E170
Sky
B022 T036
B712 at 600 ft, 32 nm northeast, 8:06 pm CDT (01:06 UTC): overcast. 269 nm along the route, 32 nm northeast of the line.
as filed, and in English
```
LEX UA /OV KLEX/TM 0106/FL006/TP B712/SK OVC B006
```
Report
a routine report filed through LEX
Where
over KLEX
Time
01:06 UTC
Height
at 600 ft
Aircraft
B712
Sky
overcast B006
CRJ9 descending, 32 nm northeast, 6:43 pm CDT (23:43 UTC): overcast up to 6,200 ft; overcast above 1,800 ft. 269 nm along the route, 32 nm northeast of the line.
as filed, and in English
```
LEX UA /OV LEX/TM 2343/FLDURD/TP CRJ9/SK TOPS OVC062 BASES OVC018
```
Report
a routine report filed through LEX
Where
over LEX
Time
23:43 UTC
Height
during the descent
Aircraft
CRJ9
Sky
tops OVC062 bases OVC018
S22T descending, 24 nm south, 7:24 pm CDT (00:24 UTC): a broken layer above 2,600 ft, remarks: during the descent RY23 tri. 399 nm along the route, 24 nm south of the line.
as filed, and in English
```
TRI UA /OV KTRI050002/TM 0024/FLUNKN/TP S22T/SK BKN026-TOPUNKN/RM DURD RY23 TRI
```
Report
a routine report filed through TRI
Where
2 nm northeast (050°) of KTRI
Time
00:24 UTC
Height
height not given
Aircraft
S22T
Sky
a broken layer from 2,600 ft, tops unknown
Remarks
during the descent RY23 tri
PC24 at 4,000 ft, 11 nm northeast, 6:00 pm CDT (23:00 UTC): no turbulence, remarks: 18 final. 459 nm along the route, 11 nm northeast of the line.
as filed, and in English
```
CLT UA /OV CLT005090/TM 2300/FL040/TP PC24/WX FIS/TB SMOOTH/RM 18 FINAL
```
Report
a routine report filed through CLT
Where
90 nm north (005°) of CLT
Time
23:00 UTC
Height
at 4,000 ft
Aircraft
PC24
Weather
fi s
Turbulence
smooth
Remarks
18 final
C52C at 12,500 ft, 37 nm northeast, 7:34 pm CDT (00:34 UTC): no icing, overcast up to 12,500 ft, 1 °C. 469 nm along the route, 37 nm northeast of the line.
as filed, and in English
```
ROA UA /OV ROA240030/TM 0034/FL125/TP C52C/SK OVCUNKN-TOP125/TA +1/IC NEG
```
Report
a routine report filed through ROA
Where
30 nm southwest (240°) of ROA
Time
00:34 UTC
Height
at 12,500 ft
Aircraft
C52C
Sky
overcast, tops 12,500 ft
Temperature
+1
Icing
none
SF50 at 7,000 ft, 41 nm south, 5:37 pm CDT (22:37 UTC): no turbulence, no icing, imc, remarks: ZTLFD-45. 469 nm along the route, 41 nm south of the line.
as filed, and in English
```
HKY UA /OV BZM/TM 2237/FL070/TP SF50/SK IMC/TB NEG/IC NEG/RM ZTLFD-45
```
Report
a routine report filed through HKY
Where
over BZM
Time
22:37 UTC
Height
at 7,000 ft
Aircraft
SF50
Sky
instrument conditions
Turbulence
none
Icing
none
Remarks
ZTLFD-45
CRJ7 descending, 11 nm south, 5:32 pm CDT (22:32 UTC): a broken layer above 4,500 ft. 519 nm along the route, 11 nm south of the line.
as filed, and in English
```
GSO UA /OV GSO/TM 2232/FLDURD/TP CRJ7/SK BKN045
```
Report
a routine report filed through GSO
Where
over GSO
Time
22:32 UTC
Height
during the descent
Aircraft
CRJ7
Sky
a broken layer from 4,500 ft
B763 at 3,000 ft, 5 nm west, 6:26 pm CDT (23:26 UTC): a broken layer above 3,000 ft. 529 nm along the route, 5 nm west of the line.
as filed, and in English
```
GSO UA /OV HEVED/TM 2326/FL030/TP B763/SK BKN030
```
Report
a routine report filed through GSO
Where
heved
Time
23:26 UTC
Height
at 3,000 ft
Aircraft
B763
Sky
a broken layer from 3,000 ft
B763 descending, 4 nm west, 6:24 pm CDT (23:24 UTC): a broken layer above 3,000 ft. 529 nm along the route, 4 nm west of the line.
as filed, and in English
```
GSO UA /OV 10 NE GSO/TM 2324/FLDURD/TP B763/SK BKN030
```
Report
a routine report filed through GSO
Where
10 northeast gso
Time
23:24 UTC
Height
during the descent
Aircraft
B763
Sky
a broken layer from 3,000 ft

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 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	290° at 13 kt	−12 kt		132 kt	4 h 23 min	1:37 am EDT (05:37 UTC)
5,500 ft	310° at 19 kt	−18 kt	11 °C	138 kt	4 h 12 min	1:26 am EDT (05:26 UTC)
7,500 ft	310° at 22 kt	−19 kt	11 °C	139 kt	4 h 10 min	1:24 am EDT (05:24 UTC)
9,500 ft	310° at 23 kt	−21 kt	8 °C	141 kt	4 h 06 min	1:20 am EDT (05:20 UTC)
11,500 ft	310° at 23 kt	−20 kt	5 °C	140 kt	4 h 08 min	1:22 am EDT (05:22 UTC)
13,500 ft	310° at 23 kt	−20 kt	1 °C	140 kt	4 h 08 min	1:22 am EDT (05:22 UTC)
15,500 ft	310° at 23 kt	−21 kt	-3 °C	141 kt	4 h 06 min	1:20 am EDT (05:20 UTC)
17,500 ft	300° at 23 kt	−21 kt	-7 °C	141 kt	4 h 06 min	1:20 am EDT (05:20 UTC)
18,000 ft FL180	300° at 23 kt	−21 kt	-8 °C	141 kt	4 h 06 min	1:20 am EDT (05:20 UTC)
24,000 ft FL240	290° at 26 kt	−25 kt	-19 °C	145 kt	4 h	1:14 am EDT (05:14 UTC)
30,000 ft FL300	280° at 34 kt	−32 kt	-33 °C	152 kt	3 h 49 min	1:03 am EDT (05:03 UTC)
34,000 ft FL340	270° at 37 kt	−34 kt	-40 °C	154 kt	3 h 46 min	1:00 am EDT (05:00 UTC)
39,000 ft FL390	280° at 32 kt	−30 kt	-49 °C	150 kt	3 h 52 min	1:06 am EDT (05:06 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°
EVV	used from 50 nm out; 66 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°
LOU	used from 200 nm out; 28 nm from the line	320/15	340/24 14°	330/28 9°	340/34 4°	340/37 -9°	340/42 -20°	320/39 -35°	320/45 -39°	330/40 -47°
TRI	used from 299 nm out; 81 nm from the line		310/28 11°	320/32 7°	330/30 2°	300/28 -9°	280/34 -21°	250/37 -31°	240/39 -38°	250/35 -48°
ROA	used from 449 nm out; 65 nm from the line	280/9	290/15 12°	290/11 8°	210/6 3°	210/30 -6°	220/46 -19°	210/74 -30°	220/78 -39°	220/64 -48°
RDU	used from 499 nm out; 55 nm from the line	240/28	250/22 10°	230/30 11°	230/40 7°	230/45 -4°	220/69 -15°	220/83 -29°	210/84 -40°	220/75 -52°

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)
BLV Belleville, IL	30 nm out, 6 nm southwest of the line, tower	VFR	calm	9 mi	none	459 ft	00:55 UTC
ENL Centralia, IL	60 nm out, 2 nm east of the line	VFR	calm	10+ mi	none	534 ft	00:55 UTC
EVV Evansville, IN	140 nm out, 7 nm south of the line, tower	VFR	from the south-southwest (210°) at 7 knots	10+ mi	none	421 ft	00:54 UTC
SDF Louisville, KY	220 nm out, 24 nm north of the line, tower	VFR Sky: a few clouds at 3,300 feet	from the southwest (220°) at 4 knots	10+ mi	none	500 ft	00:56 UTC
DVK Danville, KY	269 nm out, 5 nm east of the line	IFR Sky: overcast at 600 feet	from the west-northwest (300°) at 6 knots	7 mi	600 ft	1,021 ft	00:55 UTC
LOZ London, KY	309 nm out, 16 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
LNP Wise, VA	389 nm out, 4 nm northwest of the line	low IFR Sky: overcast at 400 feet Weather: light rain	from the west (270°) at 6 knots	3 mi	400 ft	2,684 ft	23:35 UTC
VJI Abingdon, VA	419 nm out, 9 nm southwest of the line	marginal VFR Sky: a broken layer at 1,100 feet, a broken layer at 1,800 feet, overcast at 4,500 feet	from the west-southwest (240°) at 7 knots	10+ mi	1,100 ft	2,087 ft	23:35 UTC
GSO Greensboro, NC	519 nm out, 7 nm south of the line, tower	VFR Sky: a broken layer at 6,000 feet	from the southwest (230°) at 8 knots	10+ mi	6,000 ft	925 ft	00:54 UTC
BUY Burlington, NC	549 nm out, 5 nm west of the line	marginal VFR Sky: a broken layer at 2,900 feet, overcast at 6,500 feet	from the south-southwest (210°) at 4 knots	10+ mi	2,900 ft	616 ft	01:06 UTC
RDU Raleigh/Durham, NC	destination	VFR Sky: scattered clouds at 5,000 feet	from the southwest (230°) at 11 knots	10+ mi	none	435 ft	8:51 pm EDT (00:51 UTC)

The highest airport on this list sits at 2,684 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, 1:00 am EDT (05:00 UTC)

Wind from the west-southwest at 12 knots, gusting to 21, visibility more than 6 miles, scattered clouds at 4,000 feet, a broken layer at 6,000 feet VFR

The whole forecast for RDU

From Sun 8:00 pm EDT (00:00 UTC): wind from the west-southwest at 12 knots, gusting to 21, visibility more than 6 miles, scattered clouds at 4,000 feet, a broken layer at 6,000 feet
From Mon 8:00 am EDT (12:00 UTC): wind from the west-northwest at 8 knots, visibility more than 6 miles, a broken layer at 5,000 feet
From Mon 10:00 am EDT (14:00 UTC): wind from the northwest at 9 knots, gusting to 18, visibility more than 6 miles, a broken layer at 5,000 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

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

Daylight

Sunset at STL 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)). At 120 knots the arrival at RDU is before sunrise there (7:19 am EDT (11:19 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 Southeast · 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, Raleigh-Durham International.