Plan a flight · Mon 8:37 am CDT (13:37 UTC)

Duluth International to Chicago O'Hare International DLH → ORD

345 nautical miles (397 statute miles) southeast on a straight line, true course 146°, about 147° magnetic at the departure end (variation 1W). At 120 knots that is 2 h 05 min at the quickest height in today's winds (39,000 ft, a 45-knot tailwind), arriving about 10:42 am CDT (15:42 UTC). Right now DLH is low IFR, wind from the east-northeast (070°) at 15 knots, gusting to 24; ORD is VFR, wind from the south-southwest (210°) 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: 2,350 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 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the first 69 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 DLH.

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

E170 at 15,000 ft, 12 nm east, 6:56 am CDT (11:56 UTC): moderate chop turbulence. 177 nm along the route, 12 nm east of the line.
as filed, and in English
```
Y50 UA /OV Y50330025/TM 1156/FL150/TP E170/TB MOD CHOP
```
Report
a routine report filed through Y50
Where
25 nm northwest (330°) of Y50
Time
11:56 UTC
Height
at 15,000 ft
Aircraft
E170
Turbulence
moderate chop
E75L at 300 ft, 2 nm south, 8:12 am CDT (13:12 UTC): a routine report with nothing remarked on. At the departure end, 2 nm south of the line.
as filed, and in English
```
DLH UA /OV DLH/TM 1312/FL003/TP E75L/SK B003 T037
```
Report
a routine report filed through DLH
Where
over DLH
Time
13:12 UTC
Height
at 300 ft
Aircraft
E75L
Sky
B003 T037
CRJ9 at 1,600 ft, 2 nm south, 7:26 am CDT (12:26 UTC): overcast from 1,600 ft to 3,500 ft, 14 °C, remarks: during the climb. At the departure end, 2 nm south of the line.
as filed, and in English
```
DLH UA /OV DLH/TM 1226/FL016/TP CRJ9/SK 016OVC035/TA 14/RM DURC
```
Report
a routine report filed through DLH
Where
over DLH
Time
12:26 UTC
Height
at 1,600 ft
Aircraft
CRJ9
Sky
016OVC035
Temperature
14 °C
Remarks
during the climb
BE20 at 1,600 ft, 8 nm north, 6:45 am CDT (11:45 UTC): a routine report with nothing remarked on. At the departure end, 8 nm north of the line.
as filed, and in English
```
DLH UA /OV 10N DLH /TM 1145/FL016/TP BE20/SK B016 T035
```
Report
a routine report filed through DLH
Where
10N dlh
Time
11:45 UTC
Height
at 1,600 ft
Aircraft
BE20
Sky
B016 T035
C510 at 17,000 ft, 47 nm southwest, 8:27 am CDT (13:27 UTC): no turbulence. 227 nm along the route, 47 nm southwest of the line.
as filed, and in English
```
LNR UA /OV LNR/TM 1327/FL170/TP C510/TB NEG
```
Report
a routine report filed through LNR
Where
over LNR
Time
13:27 UTC
Height
at 17,000 ft
Aircraft
C510
Turbulence
none
PC12 at 20,000 ft, 47 nm southwest, 8:27 am CDT (13:27 UTC): no turbulence. 227 nm along the route, 47 nm southwest of the line.
as filed, and in English
```
LNR UA /OV 0WI4/TM 1327/FL200/TP PC12/TB NEG
```
Report
a routine report filed through LNR
Where
over 0WI4
Time
13:27 UTC
Height
at 20,000 ft
Aircraft
PC12
Turbulence
none
B739 at 34,000 ft, 21 nm northeast, 5:58 am CDT (10:58 UTC): no turbulence. 276 nm along the route, 21 nm northeast of the line.
as filed, and in English
```
UES UA /OV BAE/TM 1058/FL340/TP B739/TB NEG
```
Report
a routine report filed through UES
Where
over BAE
Time
10:58 UTC
Height
at 34,000 ft
Aircraft
B739
Turbulence
none
B39M at 36,000 ft, 7 nm northeast, 8:18 am CDT (13:18 UTC): no turbulence. At the destination end, 7 nm northeast of the line.
as filed, and in English
```
PWK UA /OV OBK/TM 1318/FL360/TP B39M/TB NEG
```
Report
a routine report filed through PWK
Where
over OBK
Time
13:18 UTC
Height
at 36,000 ft
Aircraft
B39M
Turbulence
none

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 (DLH, LSE, GRB, JOT). 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	240° at 13 kt	0		120 kt	2 h 52 min	11:29 am CDT (16:29 UTC)
5,500 ft	250° at 16 kt	−2 kt		122 kt	2 h 50 min	11:27 am CDT (16:27 UTC)
7,500 ft	250° at 20 kt	−3 kt	13 °C	123 kt	2 h 48 min	11:25 am CDT (16:25 UTC)
9,500 ft	250° at 23 kt	−4 kt	9 °C	124 kt	2 h 47 min	11:24 am CDT (16:24 UTC)
11,500 ft	260° at 26 kt	−9 kt	6 °C	129 kt	2 h 40 min	11:17 am CDT (16:17 UTC)
13,500 ft	260° at 27 kt	−12 kt	1 °C	132 kt	2 h 37 min	11:14 am CDT (16:14 UTC)
15,500 ft	270° at 29 kt	−16 kt	-4 °C	136 kt	2 h 32 min	11:09 am CDT (16:09 UTC)
17,500 ft	280° at 30 kt	−20 kt	-9 °C	140 kt	2 h 28 min	11:05 am CDT (16:05 UTC)
18,000 ft FL180	280° at 31 kt	−21 kt	-10 °C	141 kt	2 h 27 min	11:04 am CDT (16:04 UTC)
24,000 ft FL240	280° at 34 kt	−24 kt	-21 °C	144 kt	2 h 24 min	11:01 am CDT (16:01 UTC)
30,000 ft FL300	280° at 37 kt	−24 kt	-37 °C	144 kt	2 h 24 min	11:01 am CDT (16:01 UTC)
34,000 ft FL340	270° at 47 kt	−28 kt	-44 °C	148 kt	2 h 20 min	10:57 am CDT (15:57 UTC)
39,000 ft FL390	280° at 62 kt	−45 kt	-49 °C	165 kt	2 h 05 min	10:42 am CDT (15:42 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
DLH	used from 0 nm out; 25 nm from the line	090/31	250/7 14°	250/26 11°	250/36 4°	280/36 -11°	290/35 -22°	300/39 -38°	280/41 -44°	280/66 -49°
LSE	used from 99 nm out; 80 nm from the line	250/25	240/21 17°	240/28 11°	250/28 5°	280/24 -10°	280/31 -21°	260/35 -37°	270/45 -43°	280/59 -47°
GRB	used from 197 nm out; 70 nm from the line	250/32	250/22 17°	240/18 8°	280/21 6°	280/34 -11°	280/35 -21°	280/39 -37°	270/52 -45°	290/60 -49°
JOT	used from 296 nm out; 49 nm from the line	250/25	260/22 14°	250/17 9°	270/21 5°	280/28 -8°	280/36 -20°	270/41 -35°	280/57 -42°	290/65 -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
DLH Duluth, MN	departure	low IFR Sky: overcast at 400 feet Weather: light drizzle, mist	from the east-northeast (070°) at 15 knots, gusting to 24	1.5 mi	400 ft	1,427 ft	7:55 am CDT (12:55 UTC)
OLG Solon Springs, WI	39 nm out, 6 nm west of the line	IFR Sky: overcast at 500 feet	from the northeast (050°) at 15 knots, gusting to 20	10+ mi	500 ft	1,102 ft	13:15 UTC
HYR Hayward, WI	59 nm out, 2 nm west of the line	IFR Sky: overcast at 600 feet	from the north-northeast (030°) at 12 knots	10+ mi	600 ft	1,215 ft	12:53 UTC
RCX Ladysmith, WI	99 nm out, 5 nm west of the line	VFR	calm	7 mi	none	1,239 ft	13:15 UTC
CWA Mosinee, WI	158 nm out, 22 nm east of the line, tower	VFR Sky: scattered clouds at 17,000 feet	from the south-southeast (160°) at 3 knots	10+ mi	none	1,277 ft	12:50 UTC
ISW Wisconsin Rapids, WI	177 nm out, 3 nm east of the line	VFR	from the south-southwest (200°) at 7 knots	10+ mi	none	1,021 ft	13:54 UTC
MSN Madison, WI	256 nm out, 18 nm west of the line, tower	VFR Sky: scattered clouds at 25,000 feet	from the south (170°) at 4 knots	10+ mi	none	886 ft	12:53 UTC
UES Waukesha, WI	286 nm out, 20 nm northeast of the line, tower	VFR	from the south (190°) at 8 knots	10+ mi	none	911 ft	12:45 UTC
UGN Chicago/Waukegan, IL	325 nm out, 15 nm northeast of the line, tower	VFR	from the southwest (230°) at 7 knots	10+ mi	none	728 ft	12:51 UTC
ORD Chicago, IL	destination	VFR Sky: a few clouds at 18,000 feet, scattered clouds at 25,000 feet	from the south-southwest (210°) at 10 knots	10+ mi	none	680 ft	7:51 am CDT (12:51 UTC)

The highest airport on this list sits at 1,427 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At ORD when you get there the forecast at the estimated arrival, 10:42 am CDT (15:42 UTC)

Wind from the south-southwest at 8 knots, visibility more than 6 miles, a broken layer at 25,000 feet VFR

The whole forecast for ORD

From Mon 7:00 am CDT (12:00 UTC): wind from the south-southwest at 8 knots, visibility more than 6 miles, a broken layer at 25,000 feet
From Mon 12:00 pm CDT (17:00 UTC): wind from the south-southwest at 13 knots, gusting to 24, visibility more than 6 miles, a few clouds at 25,000 feet
From Mon 6:00 pm CDT (23:00 UTC): wind from the south-southwest at 12 knots, visibility more than 6 miles, a few clouds at 12,000 feet
From Mon 10:00 pm CDT (03:00 UTC): wind from the southwest at 11 knots, visibility more than 6 miles, low-level wind shear, a few clouds at 10,000 feet
From Tue 5:00 am CDT (10:00 UTC): wind from the west at 10 knots, visibility more than 6 miles, a few clouds at 20,000 feet

The forecast for DLH, the departure

From Mon 9:00 am CDT (14:00 UTC): wind from the east at 15 knots, gusting to 26, visibility 1½ miles, light drizzle, mist, overcast at 400 feet
From Mon 5:00 pm CDT (22:00 UTC): wind from the east-northeast at 16 knots, gusting to 27, visibility 4 miles, light rain showers, mist, overcast at 200 feet
30% chance between Mon 5:00 pm CDT (22:00 UTC) and 7:00 pm CDT (00:00 UTC): visibility 3 miles, light thunderstorms with rain, a broken layer at 400 feet (thunderheads), overcast at 800 feet
From Mon 11:00 pm CDT (04:00 UTC): wind from the east-northeast at 14 knots, gusting to 23, visibility more than 6 miles, showers nearby, overcast at 300 feet
From Tue 1:00 am CDT (06:00 UTC): wind from the northeast at 11 knots, gusting to 18, visibility more than 6 miles, overcast at 300 feet
From Tue 6:00 am CDT (11:00 UTC): wind from the north at 5 knots, visibility more than 6 miles, overcast at 500 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 DLH 6:27 pm CDT (23:27 UTC), at ORD 6:15 pm CDT (23:15 UTC) (civil twilight ends 6:43 pm CDT (23:43 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, 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: Duluth International, Chicago O'Hare International.