Plan a flight · Mon 7:09 am CDT (12:09 UTC)

St. Louis Lambert International to Detroit Metro Wayne County STL → DTW

382 nautical miles (439 statute miles) northeast on a straight line, true course 055°, about 056° magnetic at the departure end (variation 1W). At 120 knots that is 2 h 30 min at the quickest height in today's winds (34,000 ft, a 33-knot tailwind), arriving about 10:39 am EDT (14:39 UTC). Right now STL is VFR, wind from the south-southwest (200°) at 6 knots; DTW is low IFR, wind from the south-southwest (200°) at 10 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: 3,794 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 137 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 STL.

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

A21N at 31,000 ft, 4 nm north, 5:33 am CDT (10:33 UTC): no turbulence, remarks: during the climb. 186 nm along the route, 4 nm north of the line.
as filed, and in English
```
LAF UA /OV BVT/TM 1033/FL310/TP A21N/TB NEG/RM DURC
```
Report
a routine report filed through LAF
Where
over BVT
Time
10:33 UTC
Height
at 31,000 ft
Aircraft
A21N
Turbulence
none
Remarks
during the climb
CRJ9 at 38,000 ft, 33 nm northwest, 6:06 am CDT (11:06 UTC): no turbulence. 225 nm along the route, 33 nm northwest of the line.
as filed, and in English
```
OXI UA /OV OXI/TM 1106/FL380/TP CRJ9/TB NEG
```
Report
a routine report filed through OXI
Where
over OXI
Time
11:06 UTC
Height
at 38,000 ft
Aircraft
CRJ9
Turbulence
none
B38M at 32,000 ft, 34 nm southeast, 6:03 am CDT (11:03 UTC): light turbulence. 225 nm along the route, 34 nm southeast of the line.
as filed, and in English
```
MZZ UA /OV MZZ240015/TM 1103/FL320/TP B38M/TB CONS LGT
```
Report
a routine report filed through MZZ
Where
15 nm southwest (240°) of MZZ
Time
11:03 UTC
Height
at 32,000 ft
Aircraft
B38M
Turbulence
continuous light
E75S at 24,000 ft, 34 nm southeast, 6:07 am CDT (11:07 UTC): light chop turbulence from 24,000 ft to 25,000 ft. 235 nm along the route, 34 nm southeast of the line.
as filed, and in English
```
MZZ UA /OV MZZ/TM 1107/FL240/TP E75S/TB OCNL LGT CHOP 250-240
```
Report
a routine report filed through MZZ
Where
over MZZ
Time
11:07 UTC
Height
at 24,000 ft
Aircraft
E75S
Turbulence
occasional light chop from 25,000 ft to 24,000 ft
B39M at 34,000 ft, 17 nm southeast, 6:23 am CDT (11:23 UTC): no turbulence. 245 nm along the route, 17 nm southeast of the line.
as filed, and in English
```
GUS UA /OV IWH/TM 1123/FL340/TP B39M/TB NEG
```
Report
a routine report filed through GUS
Where
over IWH
Time
11:23 UTC
Height
at 34,000 ft
Aircraft
B39M
Turbulence
none
A320 at 36,000 ft, 28 nm northwest, 6:25 am CDT (11:25 UTC): no turbulence. 255 nm along the route, 28 nm northwest of the line.
as filed, and in English
```
GSH UA /OV GSH/TM 1125/FL360/TP A320/TB NEG
```
Report
a routine report filed through GSH
Where
over GSH
Time
11:25 UTC
Height
at 36,000 ft
Aircraft
A320
Turbulence
none
A320 at 30,000 ft, 5 nm southwest, 6:49 am CDT (11:49 UTC): light chop turbulence, remarks: during the descent FL300-260 FL250 better. 274 nm along the route, 5 nm southwest of the line.
as filed, and in English
```
ASW UA /OV OLK/TM 1149/FL300/TP A320/TB CONS LGT CHOP/RM DURD FL300-260 FL250 BETTER
```
Report
a routine report filed through ASW
Where
over OLK
Time
11:49 UTC
Height
at 30,000 ft
Aircraft
A320
Turbulence
continuous light chop
Remarks
during the descent FL300-260 FL250 better
A321 at 34,000 ft, 21 nm southeast, 6:20 am CDT (11:20 UTC): no turbulence. 274 nm along the route, 21 nm southeast of the line.
as filed, and in English
```
FWA UA /OV FWA/TM 1120/FL340/TP A321/TB NEG
```
Report
a routine report filed through FWA
Where
over FWA
Time
11:20 UTC
Height
at 34,000 ft
Aircraft
A321
Turbulence
none
F2TH at 40,000 ft, 32 nm southeast, 6:06 am CDT (11:06 UTC): no turbulence. 274 nm along the route, 32 nm southeast of the line.
as filed, and in English
```
FWA UA /OV FWA170012/TM 1106/FL400/TP F2TH/TB NEG
```
Report
a routine report filed through FWA
Where
12 nm south (170°) of FWA
Time
11:06 UTC
Height
at 40,000 ft
Aircraft
F2TH
Turbulence
none
CRJ2 at 5,500 ft, 21 nm southeast, 4:45 am CDT (09:45 UTC): mist. 274 nm along the route, 21 nm southeast of the line.
as filed, and in English
```
FWA UA /OV FWA/TM 0945/FL055/TP CRJ2/WX MIST
```
Report
a routine report filed through FWA
Where
over FWA
Time
09:45 UTC
Height
at 5,500 ft
Aircraft
CRJ2
Weather
shallow st
BE58 climbing, 22 nm southeast, 6:34 am CDT (11:34 UTC): a routine report with nothing remarked on. 343 nm along the route, 22 nm southeast of the line.
as filed, and in English
```
TOL UA /OV TOL/TM 1134/FLDURC/TP BE58/SK B002 T018
```
Report
a routine report filed through TOL
Where
over TOL
Time
11:34 UTC
Height
during the climb
Aircraft
BE58
Sky
B002 T018
MD83 at 2,500 ft, 22 nm southeast, 5:43 am CDT (10:43 UTC): clear from 2,500 ft to 60,000 ft, remarks: base 1,000 ft tops 2,500 ft clear above. 343 nm along the route, 22 nm southeast of the line.
as filed, and in English
```
TOL UA /OV TOL/TM 1043/FL025/TP MD83/RM BASE 010 TOPS 025 CLEAR ABOVE
```
Report
a routine report filed through TOL
Where
over TOL
Time
10:43 UTC
Height
at 2,500 ft
Aircraft
MD83
Remarks
base 1,000 ft tops 2,500 ft clear above
B717 at 400 ft, 0 nm south, 6:23 am CDT (11:23 UTC): remarks: bases 400 ft during the descent. At the destination end, 0 nm south of the line.
as filed, and in English
```
DTW UA /OV DTW/TM 1123/FL004/TP B717/RM BASES 004 DURD
```
Report
a routine report filed through DTW
Where
over DTW
Time
11:23 UTC
Height
at 400 ft
Aircraft
B717
Remarks
bases 400 ft during the descent
B350 at 2,000 ft, 28 nm north, 6:22 am CDT (11:22 UTC): a routine report with nothing remarked on. At the destination end, 28 nm north of the line.
as filed, and in English
```
PTK UA /OV PTK090005/TM 1122/FL020/TP B350/WX FV10SM
```
Report
a routine report filed through PTK
Where
5 nm east (090°) of PTK
Time
11:22 UTC
Height
at 2,000 ft
Aircraft
B350
Weather
flight visibility 10 miles

2 more routine reports are on the map.

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, SPI, IND, FWA). 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 22 kt	−19 kt		139 kt	2 h 45 min	10:54 am EDT (14:54 UTC)
5,500 ft	270° at 18 kt	−14 kt		134 kt	2 h 51 min	11:00 am EDT (15:00 UTC)
7,500 ft	270° at 16 kt	−13 kt	12 °C	133 kt	2 h 52 min	11:01 am EDT (15:01 UTC)
9,500 ft	270° at 15 kt	−13 kt	9 °C	133 kt	2 h 52 min	11:01 am EDT (15:01 UTC)
11,500 ft	270° at 18 kt	−15 kt	5 °C	135 kt	2 h 50 min	10:59 am EDT (14:59 UTC)
13,500 ft	270° at 20 kt	−16 kt	1 °C	136 kt	2 h 49 min	10:58 am EDT (14:58 UTC)
15,500 ft	280° at 23 kt	−17 kt	-2 °C	137 kt	2 h 47 min	10:56 am EDT (14:56 UTC)
17,500 ft	280° at 25 kt	−17 kt	-6 °C	137 kt	2 h 47 min	10:56 am EDT (14:56 UTC)
18,000 ft FL180	280° at 26 kt	−17 kt	-7 °C	137 kt	2 h 47 min	10:56 am EDT (14:56 UTC)
24,000 ft FL240	280° at 31 kt	−24 kt	-19 °C	144 kt	2 h 39 min	10:48 am EDT (14:48 UTC)
30,000 ft FL300	280° at 40 kt	−30 kt	-34 °C	150 kt	2 h 33 min	10:42 am EDT (14:42 UTC)
34,000 ft FL340	290° at 52 kt	−33 kt	-42 °C	153 kt	2 h 30 min	10:39 am EDT (14:39 UTC)
39,000 ft FL390	300° at 62 kt	−28 kt	-51 °C	148 kt	2 h 35 min	10:44 am EDT (14:44 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; 25 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°
SPI	used from 49 nm out; 37 nm from the line	260/28	250/22 15°	250/14 9°	260/20 6°	280/27 -7°	280/34 -19°	280/48 -32°	280/59 -41°	300/60 -49°
IND	used from 147 nm out; 60 nm from the line	270/22	290/19 15°	270/19 8°	270/18 4°	290/28 -7°	280/35 -20°	270/37 -34°	300/51 -42°	300/61 -51°
FWA	used from 196 nm out; 56 nm from the line	270/20	300/16 15°	290/14 10°	280/17 3°	290/25 -7°	280/30 -19°	280/34 -35°	290/48 -44°	300/64 -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 south-southwest (200°) at 6 knots	10+ mi	none	617 ft	6:51 am CDT (11:51 UTC)
ALN Alton/St Louis, IL	20 nm out, 3 nm south of the line, tower	VFR	from the south (190°) at 5 knots	10+ mi	none	543 ft	11:50 UTC
TAZ Taylorville, IL	69 nm out, 11 nm northwest of the line	no report just now				622 ft
CMI Champaign/Urbana, IL	127 nm out, 9 nm northwest of the line, tower	VFR	from the southwest (230°) at 6 knots	10+ mi	none	754 ft	11:53 UTC
DNV Danville, IL	157 nm out, 1 nm southwest of the line	no report just now				696 ft
LAF Lafayette, IN	186 nm out, 7 nm southeast of the line, tower	VFR	calm	10+ mi	none	605 ft	11:54 UTC
GUS Peru, IN	225 nm out, 14 nm southeast of the line, tower	VFR	from the south (170°) at 4 knots	10+ mi	none	810 ft	11:55 UTC
FWA Fort Wayne, IN	274 nm out, 20 nm southeast of the line, tower	marginal VFR Sky: a broken layer at 25,000 feet Weather: mist	from the south-southeast (160°) at 5 knots	3 mi	25,000 ft	814 ft	11:54 UTC
USE Wauseon, OH	333 nm out, 13 nm southeast of the line	low IFR Sky: overcast at 200 feet Weather: mist	from the southwest (220°) at 5 knots	0.5 mi	200 ft	780 ft	11:55 UTC
TOL Toledo, OH	343 nm out, 22 nm southeast of the line, tower	low IFR Sky: overcast at 300 feet Weather: mist	from the south-southwest (210°) at 6 knots	1 mi	300 ft	683 ft	11:52 UTC
DTW Detroit, MI	destination	low IFR Sky: overcast at 400 feet Weather: mist	from the south-southwest (200°) at 10 knots	2 mi	400 ft	645 ft	7:53 am EDT (11:53 UTC)

The highest airport on this list sits at 814 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At DTW when you get there the forecast at the estimated arrival, 10:39 am EDT (14:39 UTC)

Wind from the southwest at 9 knots, visibility more than 6 miles, scattered clouds at 25,000 feet VFR

The whole forecast for DTW

From Mon 8:00 am EDT (12:00 UTC): wind from the west-southwest at 4 knots, visibility more than 6 miles, a broken layer at 25,000 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
From Tue 1:00 am EDT (05:00 UTC): wind from the south-southwest at 4 knots, visibility more than 6 miles, scattered clouds at 6,000 feet, a broken layer at 11,000 feet
30% chance between Tue 2:00 am EDT (06:00 UTC) and 5:00 am EDT (09:00 UTC): visibility 6 miles, light rain showers, a broken layer at 5,000 feet
From Tue 9:00 am EDT (13:00 UTC): wind from the west-southwest at 12 knots, visibility more than 6 miles, scattered clouds at 3,500 feet

The forecast for STL, the departure

From Mon 7:00 am CDT (12:00 UTC): wind from the southwest at 6 knots, 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 12 knots, gusting to 20, 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 STL 6:27 pm CDT (23:27 UTC), at DTW 6:56 pm EDT (22:56 UTC) (civil twilight ends 7:24 pm EDT (23:24 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, 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, Detroit Metro Wayne County.