Plan a flight · Mon 12:42 am CDT (05:42 UTC)

University Of Illinois/Willard Airport to Harry Reid International CMI → LAS

1,287 nautical miles (1,482 statute miles) west on a straight line, true course 268°, about 271° magnetic at the departure end (variation 3W). At 120 knots that is 13 h at the quickest height in today's winds (12,500 ft, a 21-knot headwind), arriving about 11:42 am PDT (18:42 UTC). Right now CMI is VFR, wind from the south (180°) at 4 knots; LAS is VFR, wind from the south-southeast (160°) at 8 knots, gusting to 19. 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

SIGMET 7C: thunderstorms (a convective SIGMET) up to 34,000 ft, moving from the southwest at 40 knots, until 1:55 am CDT (06:55 UTC). Over the route from 759 to 858 nm out.

as issued

WSUS32 KKCI 120455
MKCC WST 120455
CONVECTIVE SIGMET 7C
VALID UNTIL 0655Z
TX OK CO NM
FROM 40NNW PUB-70WSW LBL-40NE CME-40ESE RSK-30ENE HBU-40NNW PUB
AREA TS MOV FROM 22040KT. TOPS TO FL340.

AIRMET TANGO 3W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground). Over the route from 160 to 689 nm out.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the last 609 nm of the route.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 38,000 ft. Over the route from 699 to 1138 nm out.
AIRMET TANGO 1W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground). Over the route from 759 to 908 nm out.
AIRMET TANGO 2W: moderate turbulence above 18,000 ft from 35,000 ft to 45,000 ft. Near the route, 918 nm along the route.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 938 to 1228 nm out.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the last 170 nm of the route.
AIRMET SIERRA 2E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the route from 1128 to 1148 nm out.
AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 15,000 ft. Near the route, at the destination end.

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 CMI.

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

B38M at 29,000 ft, 33 nm north, 11:52 pm CDT (04:52 UTC): no turbulence from 23,000 ft to 29,000 ft. At the departure end, 33 nm north of the line.
as filed, and in English
```
TIP UA /OV RBS/TM 0452/FL290/TP B38M/TB NEG 230-290
```
Report
a routine report filed through TIP
Where
over RBS
Time
04:52 UTC
Height
at 29,000 ft
Aircraft
B38M
Turbulence
no from 23,000 ft to 29,000 ft
B733 at 20,000 ft, 28 nm north, 10:16 pm CDT (03:16 UTC): light chop turbulence up to 20,000 ft, clear from 20,000 ft to 60,000 ft, remarks: during the climb ZDVWC-12. 878 nm along the route, 28 nm north of the line.
as filed, and in English
```
GUC UA /OV HBU/TM 0316/FL200/TP B733/SK SKC/TB OCNL LGT CHOP BLO 200/RM DURC ZDVWC-12
```
Report
a routine report filed through GUC
Where
over HBU
Time
03:16 UTC
Height
at 20,000 ft
Aircraft
B733
Sky
clear
Turbulence
occasional light chop below 20,000 ft
Remarks
during the climb ZDVWC-12
BE20 at 20,400 ft, 35 nm south, 10:14 pm CDT (03:14 UTC): rain, heavy rain, blowing, remarks: during the climb ZDVWC-36. 898 nm along the route, 35 nm south of the line.
as filed, and in English
```
DRO UA /OV DRO050025/TM 0314/FL204/TP BE20/WX RA-+RA BLO 150/RM DURC ZDVWC-36
```
Report
a routine report filed through DRO
Where
25 nm northeast (050°) of DRO
Time
03:14 UTC
Height
at 20,400 ft
Aircraft
BE20
Weather
ra-+ra, below, at 15,000 ft
Remarks
during the climb ZDVWC-36
PC12 at 16,400 ft, 43 nm south, 10:15 pm CDT (03:15 UTC): light chop turbulence up to 16,000 ft, clear from 16,400 ft to 60,000 ft, remarks: during the climb ZDVWC-36. 938 nm along the route, 43 nm south of the line.
as filed, and in English
```
DRO UA /OV DRO230013/TM 0315/FL164/TP PC12/SK SKC/TB CONS LGT CHOP BLO 160/RM DURC ZDVWC-36
```
Report
a routine report filed through DRO
Where
13 nm southwest (230°) of DRO
Time
03:15 UTC
Height
at 16,400 ft
Aircraft
PC12
Sky
clear
Turbulence
continuous light chop below 16,000 ft
Remarks
during the climb ZDVWC-36
A319 at 18,000 ft, 11 nm north, 10:45 pm CDT (03:45 UTC): light rime icing from 18,000 ft to 20,000 ft, -16 °C, remarks: zlawc. At the destination end, 11 nm north of the line.
as filed, and in English
```
LAS UA /OV BLD017030/TM 0345/FL180/TP A319/TA M16/IC LGT RIME 200-180/RM ZLAWC AWC-WEB
```
Report
a routine report filed through LAS
Where
30 nm north (017°) of BLD
Time
03:45 UTC
Height
at 18,000 ft
Aircraft
A319
Temperature
−16 °C
Icing
light rime from 20,000 ft to 18,000 ft
Remarks
zlawc
B737 at 14,500 ft, 12 nm south, 12:30 am CDT (05:30 UTC): light turbulence. At the destination end, 12 nm south of the line.
as filed, and in English
```
LAS UA /OV LAS155012/TM 0530/FL145/TP B737/TB LGT
```
Report
a routine report filed through LAS
Where
12 nm southeast (155°) of LAS
Time
05:30 UTC
Height
at 14,500 ft
Aircraft
B737
Turbulence
light
B737 at 16,000 ft, 45 nm southwest, 10:45 pm CDT (03:45 UTC): light rime icing, -9 °C. At the destination end, 45 nm southwest of the line.
as filed, and in English
```
LAS UA /OV LAS215045/TM 0345/FL160/TP B737/TA M09/IC LGT RIME
```
Report
a routine report filed through LAS
Where
45 nm southwest (215°) of LAS
Time
03:45 UTC
Height
at 16,000 ft
Aircraft
B737
Temperature
−9 °C
Icing
light rime
H25B at 17,000 ft, 30 nm southwest, 9:44 pm CDT (02:44 UTC): light rime icing, -10 °C, remarks: rndrz arrival. At the destination end, 30 nm southwest of the line.
as filed, and in English
```
LAS UA /OV LAS210030/TM 0244/FL170/TP H25B/TA -10/IC LT RIME/RM RNDRZ ARR
```
Report
a routine report filed through LAS
Where
30 nm southwest (210°) of LAS
Time
02:44 UTC
Height
at 17,000 ft
Aircraft
H25B
Temperature
-10
Icing
lt rime
Remarks
rndrz arrival

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 11 forecast points nearest it (SPI, BRL, COU, MKC, SLN, GLD, PUB, ALS, FMN, BCE, LAS). 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	230° at 36 kt	+29 kt	10 °C	91 kt	14 h 09 min	12:51 pm PDT (19:51 UTC)
6,500 ft	230° at 32 kt	+28 kt	15 °C	92 kt	13 h 59 min	12:41 pm PDT (19:41 UTC)
8,500 ft	240° at 26 kt	+24 kt	12 °C	96 kt	13 h 24 min	12:06 pm PDT (19:06 UTC)
10,500 ft	230° at 24 kt	+22 kt	7 °C	98 kt	13 h 08 min	11:50 am PDT (18:50 UTC)
12,500 ft	230° at 24 kt	+21 kt	3 °C	99 kt	13 h	11:42 am PDT (18:42 UTC)
14,500 ft	230° at 27 kt	+24 kt	-1 °C	96 kt	13 h 24 min	12:06 pm PDT (19:06 UTC)
16,500 ft	230° at 30 kt	+27 kt	-5 °C	93 kt	13 h 50 min	12:32 pm PDT (19:32 UTC)
18,000 ft FL180	230° at 32 kt	+29 kt	-9 °C	91 kt	14 h 09 min	12:51 pm PDT (19:51 UTC)
24,000 ft FL240	230° at 42 kt	+38 kt	-20 °C	82 kt	15 h 42 min	2:24 pm PDT (21:24 UTC)
30,000 ft FL300	240° at 57 kt	+55 kt	-30 °C	65 kt	19 h 48 min	6:30 pm PDT (01:30 UTC)
34,000 ft FL340	250° at 60 kt	+60 kt	-37 °C	60 kt	21 h 27 min	8:09 pm PDT (03:09 UTC)
39,000 ft FL390	250° at 52 kt	+53 kt	-47 °C	67 kt	19 h 13 min	5:55 pm PDT (00:55 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
SPI	used from 0 nm out; 41 nm from the line	220/21	250/23 16°	260/27 9°	270/14 6°	270/23 -7°	270/31 -19°	270/28 -33°	290/48 -42°	300/55 -52°
BRL	used from 100 nm out; 51 nm from the line	230/24	240/29 15°	290/16 10°	280/15 4°	260/23 -7°	260/32 -19°	260/36 -33°	280/48 -41°	280/59 -52°
COU	used from 150 nm out; 64 nm from the line	230/31	230/30 15°	260/16 11°	270/14 6°	260/24 -6°	270/27 -18°	270/37 -32°	280/49 -41°	290/56 -51°
MKC	used from 250 nm out; 40 nm from the line	220/44	250/28 18°	250/18 13°	240/12 6°	280/24 -6°	240/34 -18°	260/47 -30°	260/51 -40°	270/58 -50°
SLN	used from 349 nm out; 75 nm from the line	210/53	230/41 20°	240/26 14°	230/16 8°	240/25 -7°	240/35 -19°	250/61 -30°	260/65 -38°	260/56 -49°
GLD	used from 549 nm out; 54 nm from the line		230/49	230/42 15°	220/26 8°	240/18 -7°	230/27 -21°	240/62 -30°	240/61 -35°	250/57 -47°
PUB	used from 699 nm out; 39 nm from the line			230/25 13°	230/32 6°	220/44 -8°	230/49 -21°	240/70 -28°	240/67 -34°	240/58 -46°
ALS	used from 798 nm out; 47 nm from the line				230/37 4°	220/54 -9°	230/62 -22°	240/77 -26°	240/74 -33°	230/59 -45°
FMN	used from 898 nm out; 67 nm from the line			220/28 9°	220/40 2°	220/53 -10°	220/62 -22°	230/79 -28°	240/91 -34°	230/71 -45°
BCE	used from 1048 nm out; 68 nm from the line				220/27 -1°	210/40 -13°	220/54 -21°	220/64 -30°	220/64 -34°	220/52 -44°
LAS	used from 1198 nm out; 65 nm from the line		210/21 10°	200/18 5°	200/23 -2°	210/49 -14°	210/63 -21°	220/58 -30°	220/61 -35°	210/56 -44°

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
CMI Champaign/Urbana, IL	departure	VFR	from the south (180°) at 4 knots	10+ mi	none	754 ft	11:53 pm CDT (04:53 UTC)
SPI Springfield, IL	70 nm out, 10 nm southeast of the line, tower	VFR	from the south (180°) at 11 knots	10+ mi	none	597 ft	04:52 UTC
CHT Chillicothe, MO	240 nm out, 1 nm west of the line	VFR	from the south (190°) at 4 knots	10+ mi	none	783 ft	05:35 UTC
STJ St Joseph, MO	309 nm out, 7 nm northeast of the line, tower	VFR	from the south (190°) at 10 knots	10+ mi	none	826 ft	04:53 UTC
MHK Manhattan, KS	389 nm out, 22 nm south of the line, tower	VFR	from the south-southwest (200°) at 13 knots, gusting to 21	10+ mi	none	1,066 ft	04:52 UTC
OEL Oakley, KS	579 nm out, 7 nm northwest of the line	VFR	from the south-southwest (210°) at 15 knots, gusting to 20	10+ mi	none	3,045 ft	05:35 UTC
PUB Pueblo, CO	759 nm out, 10 nm south of the line, tower	VFR	from the south-southwest (200°) at 9 knots	10+ mi	none	4,729 ft	04:53 UTC
ANK Salida, CO	828 nm out, 21 nm north of the line	VFR Sky: scattered clouds at 6,500 feet, scattered clouds at 8,000 feet Weather: light rain	from the south (180°) at 19 knots	10+ mi	none	7,523 ft	05:35 UTC
BDG Blanding, UT	998 nm out, 7 nm northwest of the line	VFR Sky: a broken layer at 8,000 feet, overcast at 10,000 feet	from the west-southwest (240°) at 9 knots	10+ mi	8,000 ft	5,867 ft	02:35 UTC
PGA Page, AZ	1098 nm out, 7 nm south of the line	VFR	calm	10+ mi	none	4,316 ft	04:53 UTC
AZC Colorado City, AZ	1178 nm out, 19 nm north of the line	marginal VFR Sky: a broken layer at 3,000 feet, overcast at 4,600 feet	calm	10+ mi	3,000 ft	4,873 ft	05:35 UTC
LAS Las Vegas, NV	destination	VFR Sky: a broken layer at 11,000 feet	from the south-southeast (160°) at 8 knots, gusting to 19	10+ mi	11,000 ft	2,183 ft	9:56 pm PDT (04:56 UTC)

The highest airport on this list sits at 7,523 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At LAS when you get there the forecast at the estimated arrival, 11:42 am PDT (18:42 UTC)

Wind from the south at 8 knots, visibility more than 6 miles, showers nearby, scattered clouds at 7,000 feet, a broken layer at 10,000 feet VFR

The whole forecast for LAS

From Sun 11:00 pm PDT (06:00 UTC): wind from the south at 12 knots, gusting to 17, visibility more than 6 miles, a few clouds at 8,000 feet, a broken layer at 10,000 feet
From Mon 1:00 am PDT (08:00 UTC): wind from the south at 7 knots, visibility more than 6 miles, a few clouds at 8,000 feet, a broken layer at 10,000 feet
From Mon 8:00 am PDT (15:00 UTC): wind from the south at 8 knots, visibility more than 6 miles, showers nearby, scattered clouds at 7,000 feet, a broken layer at 10,000 feet
From Mon 12:00 pm PDT (19:00 UTC): wind from the south-southwest at 15 knots, gusting to 25, visibility more than 6 miles, showers nearby, scattered clouds at 7,000 feet, a broken layer at 12,000 feet
From Mon 9:00 pm PDT (04:00 UTC): wind from the southwest at 8 knots, visibility more than 6 miles, a few clouds at 8,000 feet, scattered clouds at 10,000 feet

The forecast for CMI, the departure

From Sun 7:00 pm CDT (00:00 UTC): wind from the south at 6 knots, visibility more than 6 miles, a few clouds at 25,000 feet
From Mon 4:00 am CDT (09:00 UTC): wind from the south-southwest at 8 knots, visibility more than 6 miles, scattered clouds at 18,000 feet, a broken layer at 25,000 feet
From Mon 12:00 pm CDT (17:00 UTC): wind from the southwest at 12 knots, gusting to 19, visibility more than 6 miles, scattered clouds at 10,000 feet, a broken layer at 18,000 feet

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

6/8890 LAS VEGAS, NV, Tuesday, October 13, 2026 Local on the route, at the destination end · a VIP movement · starts tomorrow · ZLA
6/8808 Las Vegas, NV, Tuesday, October 13, 2026 Local on the route, at the destination end · security · starts tomorrow · ZLA

Daylight

Sunset at CMI 6:18 pm CDT (23:18 UTC), at LAS 6:08 pm PDT (01:08 UTC) (civil twilight ends 6:34 pm PDT (01:34 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 southern Plains · loop National Weather Service

Radar now, the southern Rockies · 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: University Of Illinois/Willard Airport, Harry Reid International.