Plan a flight · Mon 7:18 am CDT (12:18 UTC)

Spirit Of St. Louis Airport to Smyrna Airport SUS → MQY

253 nautical miles (292 statute miles) southeast on a straight line, true course 128°, about 129° magnetic at the departure end (variation 1W). At 120 knots that is 1 h 28 min at the quickest height in today's winds (39,000 ft, a 52-knot tailwind), arriving about 8:46 am CDT (13:46 UTC). Right now SUS is VFR, wind calm; MQY is VFR, wind calm. 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 last 39 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 SUS.

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

B737 at 36,000 ft, 21 nm northeast, 6:14 am CDT (11:14 UTC): no turbulence, remarks: ZME33. 127 nm along the route, 21 nm northeast of the line.
as filed, and in English
```
EVV UA /OV PXV225030/TM 1114/FL360/TP B737/TB NEG/RM ZME33
```
Report
a routine report filed through EVV
Where
30 nm southwest (225°) of PXV
Time
11:14 UTC
Height
at 36,000 ft
Aircraft
B737
Turbulence
none
Remarks
ZME33
E75L at 33,000 ft, 41 nm northeast, 6:09 am CDT (11:09 UTC): no turbulence, remarks: ZME62. At the destination end, 41 nm northeast of the line.
as filed, and in English
```
BNA UA /OV BNA045040/TM 1109/FL330/TP E75L/TB NEG/RM ZME62
```
Report
a routine report filed through BNA
Where
40 nm northeast (045°) of BNA
Time
11:09 UTC
Height
at 33,000 ft
Aircraft
E75L
Turbulence
none
Remarks
ZME62

Winds aloft along the route, and the time en route the forecast for use 08:00–15:00 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 4 forecast points nearest it (STL, CGI, EVV, BNA). 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 21 kt	−16 kt		136 kt	1 h 52 min	9:10 am CDT (14:10 UTC)
5,500 ft	270° at 16 kt	−12 kt		132 kt	1 h 55 min	9:13 am CDT (14:13 UTC)
7,500 ft	260° at 14 kt	−10 kt	13 °C	130 kt	1 h 57 min	9:15 am CDT (14:15 UTC)
9,500 ft	260° at 14 kt	−9 kt	9 °C	129 kt	1 h 58 min	9:16 am CDT (14:16 UTC)
11,500 ft	260° at 15 kt	−11 kt	6 °C	131 kt	1 h 56 min	9:14 am CDT (14:14 UTC)
13,500 ft	270° at 18 kt	−14 kt	3 °C	134 kt	1 h 53 min	9:11 am CDT (14:11 UTC)
15,500 ft	270° at 22 kt	−18 kt	-2 °C	138 kt	1 h 50 min	9:08 am CDT (14:08 UTC)
17,500 ft	280° at 25 kt	−22 kt	-5 °C	142 kt	1 h 47 min	9:05 am CDT (14:05 UTC)
18,000 ft FL180	280° at 26 kt	−23 kt	-6 °C	143 kt	1 h 46 min	9:04 am CDT (14:04 UTC)
24,000 ft FL240	280° at 29 kt	−24 kt	-18 °C	144 kt	1 h 45 min	9:03 am CDT (14:03 UTC)
30,000 ft FL300	290° at 41 kt	−39 kt	-32 °C	159 kt	1 h 35 min	8:53 am CDT (13:53 UTC)
34,000 ft FL340	290° at 53 kt	−51 kt	-40 °C	171 kt	1 h 29 min	8:47 am CDT (13:47 UTC)
39,000 ft FL390	310° at 52 kt	−52 kt	-51 °C	172 kt	1 h 28 min	8:46 am CDT (13:46 UTC)

Based on data from the 12th at 06:00 UTC; valid on the 12th at 12:00 UTC for use 08:00 to 15:00 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; 21 nm from the line	250/26	240/21 15°	240/22 11°	250/23 6°	270/28 -7°	260/30 -19°	280/52 -31°	280/57 -40°	300/57 -49°
CGI	used from 49 nm out; 42 nm from the line	260/22	250/15 15°	250/13 11°	250/16 6°	270/29 -7°	280/30 -18°	290/40 -31°	290/55 -40°	300/51 -51°
EVV	used from 146 nm out; 71 nm from the line	270/25	290/17 15°	260/10 8°	270/16 5°	280/29 -6°	280/33 -19°	290/38 -33°	300/53 -41°	310/54 -51°
BNA	used from 195 nm out; 24 nm from the line	300/20	300/14 15°	300/14 10°	300/13 4°	310/22 -5°	280/24 -18°	310/37 -33°	310/50 -41°	320/49 -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
SUS St Louis, MO	departure	VFR Weather: shallow fog	calm	10+ mi	none	463 ft	6:54 am CDT (11:54 UTC)
CPS Cahokia/St Louis, IL	19 nm out, 10 nm northeast of the line, tower	VFR	from the south-southeast (160°) at 3 knots	10+ mi	none	412 ft	11:53 UTC
SAR Sparta, IL	58 nm out, 5 nm north of the line	VFR	from the south-southwest (200°) at 5 knots	10+ mi	none	537 ft	11:55 UTC
MDH Carbondale/Murphysboro, IL	88 nm out, 3 nm west of the line, tower	VFR	from the south-southwest (200°) at 4 knots	10+ mi	none	411 ft	11:52 UTC
PAH Paducah, KY	127 nm out, 21 nm southwest of the line, tower	VFR	calm	10+ mi	none	410 ft	11:53 UTC
CKV Clarksville, TN	195 nm out, 2 nm southeast of the line	marginal VFR Weather: mist	calm	4 mi	none	549 ft	11:52 UTC
JWN Nashville, TN	234 nm out, 4 nm southwest of the line, tower	VFR	calm	10+ mi	none	501 ft	11:50 UTC
MQY Smyrna, TN	destination	VFR	calm	10+ mi	none	543 ft	6:56 am CDT (11:56 UTC)

The highest airport on this list sits at 549 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At MQY when you get there the forecast at the estimated arrival, 8:46 am CDT (13:46 UTC)

Wind calm, visibility 1 mile, mist, clear skies IFR

The whole forecast for MQY

From Mon 7:00 am CDT (12:00 UTC): wind calm, visibility 1 mile, mist, clear skies
From Mon 9:00 am CDT (14:00 UTC): wind light and variable, visibility more than 6 miles, scattered clouds at 800 feet
From Mon 11:00 am CDT (16:00 UTC): wind from the southwest at 7 knots, visibility more than 6 miles, a few clouds at 20,000 feet

The forecast for SUS, the departure

From Mon 7:00 am CDT (12:00 UTC): wind light and variable, visibility 4 miles, mist, a few clouds at 25,000 feet
From Mon 10:00 am CDT (15:00 UTC): wind from the southwest at 8 knots, visibility more than 6 miles, clear skies

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

6/0708 Goodlettsville, TN, Saturday, August 1, 2026 through Sunday, August 1, 2027 UTC 9 nm from the route, 234 nm along the route · security · until 1 August · ZME

Daylight

Sunset at SUS 6:28 pm CDT (23:28 UTC), at MQY 6:14 pm CDT (23:14 UTC) (civil twilight ends 6:40 pm CDT (23:40 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: Spirit Of St. Louis Airport, Smyrna Airport.