Plan a flight · Mon 3:36 am EDT (07:36 UTC)

Willow Run Airport to Smyrna Airport YIP → MQY

399 nautical miles (459 statute miles) south on a straight line, true course 201°, about 207° magnetic at the departure end (variation 6W). At 120 knots that is 2 h 29 min at the quickest height in today's winds (34,000 ft, a 41-knot tailwind), arriving about 5:05 am CDT (10:05 UTC), after sunset at the destination. Right now YIP is IFR, wind from the west (260°) at 6 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: 11 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), from 2:00 am EDT (06:00 UTC). Over the whole 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 YIP.

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

A333 descending, 8 nm east, 1:44 am EDT (05:44 UTC): a routine report with nothing remarked on. At the departure end, 8 nm east of the line.
as filed, and in English
```
DTW UA /OV DTW/TM 0544/FLDURD/TP A333/SK TOPS 025
```
Report
a routine report filed through DTW
Where
over DTW
Time
05:44 UTC
Height
during the descent
Aircraft
A333
Sky
tops 2,500 ft
B739 descending, 8 nm east, 12:54 am EDT (04:54 UTC): a routine report with nothing remarked on. At the departure end, 8 nm east of the line.
as filed, and in English
```
DTW UA /OV DTW/TM 0454/FLDURD/TP B739/SK BASES 011
```
Report
a routine report filed through DTW
Where
over DTW
Time
04:54 UTC
Height
during the descent
Aircraft
B739
Sky
bases 1,100 ft
B738 at 1,700 ft, 3 nm southeast, 2:20 am EDT (06:20 UTC): overcast from 1,700 ft to 2,000 ft, remarks: during the descent. 40 nm along the route, 3 nm southeast of the line.
as filed, and in English
```
TOL UA /OV KTOL/TM 0620/FL017/TP B738/SK OVC017-TOP020/RM DURD
```
Report
a routine report filed through TOL
Where
over KTOL
Time
06:20 UTC
Height
at 1,700 ft
Aircraft
B738
Sky
overcast from 1,700 ft, tops 2,000 ft
Remarks
during the descent
B738 at 1,800 ft, 3 nm southeast, 1:18 am EDT (05:18 UTC): overcast from 1,800 ft to 2,700 ft, remarks: during the climb. 40 nm along the route, 3 nm southeast of the line.
as filed, and in English
```
TOL UA /OV KTOL/TM 0518/FL018/TP B738/SK OVC018-TOP027/RM DURC
```
Report
a routine report filed through TOL
Where
over KTOL
Time
05:18 UTC
Height
at 1,800 ft
Aircraft
B738
Sky
overcast from 1,800 ft, tops 2,700 ft
Remarks
during the climb
B738 at 1,300 ft, 3 nm southeast, 12:45 am EDT (04:45 UTC): overcast from 1,300 ft to 3,000 ft, remarks: during the descent. 40 nm along the route, 3 nm southeast of the line.
as filed, and in English
```
TOL UA /OV KTOL/TM 0445/FL013/TP B738/SK OVC013-TOP030/RM DURD
```
Report
a routine report filed through TOL
Where
over KTOL
Time
04:45 UTC
Height
at 1,300 ft
Aircraft
B738
Sky
overcast from 1,300 ft, tops 3,000 ft
Remarks
during the descent

Winds aloft along the route, and the time en route the forecast for use 02:00–09:00 UTC · at 120 knots true airspeed

The westbound cruising heights for this course (VFR: even 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 (FWA, CVG, LOU, 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
4,500 ft	330° at 20 kt	−12 kt		132 kt	3 h 01 min	5:37 am CDT (10:37 UTC)
6,500 ft	340° at 25 kt	−18 kt	15 °C	138 kt	2 h 53 min	5:29 am CDT (10:29 UTC)
8,500 ft	340° at 26 kt	−19 kt	11 °C	139 kt	2 h 52 min	5:28 am CDT (10:28 UTC)
10,500 ft	340° at 24 kt	−19 kt	6 °C	139 kt	2 h 52 min	5:28 am CDT (10:28 UTC)
12,500 ft	340° at 23 kt	−18 kt	2 °C	138 kt	2 h 53 min	5:29 am CDT (10:29 UTC)
14,500 ft	340° at 24 kt	−17 kt	-1 °C	137 kt	2 h 55 min	5:31 am CDT (10:31 UTC)
16,500 ft	330° at 26 kt	−16 kt	-4 °C	136 kt	2 h 56 min	5:32 am CDT (10:32 UTC)
18,000 ft FL180	320° at 27 kt	−14 kt	-7 °C	134 kt	2 h 59 min	5:35 am CDT (10:35 UTC)
24,000 ft FL240	330° at 38 kt	−25 kt	-20 °C	145 kt	2 h 45 min	5:21 am CDT (10:21 UTC)
30,000 ft FL300	330° at 55 kt	−37 kt	-35 °C	157 kt	2 h 32 min	5:08 am CDT (10:08 UTC)
34,000 ft FL340	330° at 67 kt	−41 kt	-42 °C	161 kt	2 h 29 min	5:05 am CDT (10:05 UTC)
39,000 ft FL390	330° at 47 kt	−29 kt	-50 °C	149 kt	2 h 41 min	5:17 am CDT (10:17 UTC)

Based on data from the 12th at 00:00 UTC; valid on the 12th at 06:00 UTC for use 02:00 to 09:00 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
FWA	used from 0 nm out; 84 nm from the line	300/17	320/20 16°	330/20 10°	340/15 3°	310/27 -8°	320/37 -20°	330/52 -36°	330/65 -43°	330/60 -50°
CVG	used from 150 nm out; 31 nm from the line	320/18	350/32 16°	350/35 10°	350/30 3°	330/30 -7°	340/44 -20°	340/58 -35°	330/72 -41°	320/36 -49°
LOU	used from 249 nm out; 16 nm from the line	310/18	340/28 16°	340/29 10°	350/27 3°	330/27 -7°	340/39 -19°	330/58 -33°	330/67 -41°	330/40 -49°
BNA	used from 349 nm out; 23 nm from the line	310/20	340/20 17°	330/24 10°	340/22 5°	330/26 -6°	340/29 -18°	330/52 -33°	320/62 -41°	340/45 -50°

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
YIP Detroit, MI	departure	IFR Sky: overcast at 900 feet	from the west (260°) at 6 knots	10+ mi	900 ft	715 ft	2:53 am EDT (06:53 UTC)
TOL Toledo, OH	40 nm out, 3 nm southeast of the line, tower	VFR Sky: scattered clouds at 1,300 feet	from the southwest (230°) at 3 knots	10+ mi	none	683 ft	07:12 UTC
OWX Ottawa, OH	70 nm out, 9 nm southeast of the line	marginal VFR Sky: a broken layer at 1,100 feet	from the southwest (220°) at 3 knots	9 mi	1,100 ft	763 ft	07:15 UTC
VES Versailles, OH	130 nm out, 2 nm southeast of the line	low IFR Sky: overcast at 400 feet Weather: mist	from the southwest (220°) at 5 knots	5 mi	400 ft	1,007 ft	07:15 UTC
DAY Dayton, OH	140 nm out, 22 nm southeast of the line, tower	IFR Sky: overcast at 800 feet	from the west-northwest (300°) at 5 knots	10+ mi	800 ft	1,009 ft	06:56 UTC
CVG Covington, KY	200 nm out, 20 nm east of the line, tower	low IFR Sky: sky obscured at 100 feet Weather: fog	from the southwest (230°) at 4 knots	0.25 mi	100 ft	896 ft	07:32 UTC
LOU Louisville, KY	259 nm out, 6 nm west of the line, tower	low IFR Sky: sky obscured at 200 feet Weather: fog	calm	0.25 mi	200 ft	545 ft	06:53 UTC
EKX Elizabethtown, KY	299 nm out, 8 nm northwest of the line	low IFR Sky: overcast at 100 feet Weather: fog	calm	0.25 mi	100 ft	775 ft	07:15 UTC
GLW Glasgow, KY	329 nm out, 6 nm southeast of the line	low IFR Sky: overcast at 200 feet Weather: fog	calm	0.25 mi	200 ft	716 ft	07:15 UTC
XNX Gallatin, TN	379 nm out, 3 nm north of the line	low IFR Sky: overcast at 200 feet Weather: fog	calm	0.25 mi	200 ft	583 ft	07:15 UTC
MQY Smyrna, TN	destination	reported, no category	calm		200 ft	543 ft	2:32 am CDT (07:32 UTC)

The highest airport on this list sits at 1,009 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, 5:05 am CDT (10:05 UTC)

Wind calm, visibility ¼ mile, fog, a broken layer at 200 feet low IFR

The whole forecast for MQY

From Mon 2:00 am CDT (07:00 UTC): wind calm, visibility ¼ mile, fog, a broken layer at 200 feet
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 west at 7 knots, visibility more than 6 miles, a few clouds at 20,000 feet

The forecast for YIP, the departure

From Mon 2:00 am EDT (06:00 UTC): wind light and variable, visibility more than 6 miles, overcast at 1,500 feet
From Mon 3:00 am EDT (07:00 UTC): wind from the south-southwest at 4 knots, visibility 5 miles, mist, a broken layer at 25,000 feet
At times between Mon 5:00 am EDT (09:00 UTC) and 9:00 am EDT (13:00 UTC): visibility ¾ mile, mist, a broken layer at 300 feet
From Mon 10:00 am EDT (14:00 UTC): wind from the southwest at 9 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
From Mon 1:00 pm EDT (17:00 UTC): wind from the southwest at 12 knots, gusting to 22, visibility more than 6 miles, a broken layer at 25,000 feet
From Mon 8:00 pm EDT (00:00 UTC): wind from the south-southwest at 6 knots, visibility more than 6 miles, scattered clouds at 9,000 feet, a broken layer at 20,000 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 15 nm from the route, 200 nm along the route · a VIP movement · until 12 October · ZID
6/0708 Goodlettsville, TN, Saturday, August 1, 2026 through Sunday, August 1, 2027 UTC 14 nm from the route, 379 nm along the route · security · until 1 August · ZME

Daylight

Sunset at YIP 6:57 pm EDT (22:57 UTC), at MQY 6:14 pm CDT (23:14 UTC) (civil twilight ends 6:40 pm CDT (23:40 UTC)). At 120 knots the arrival at MQY is before sunrise there (6:50 am CDT (11:50 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 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: Willow Run Airport, Smyrna Airport.