Plan a flight · Sun 8:53 pm CDT (01:53 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 12 h 08 min at the quickest height in today's winds (4,500 ft, a 14-knot headwind), arriving about 7:01 am PDT (14:01 UTC). Right now CMI is VFR, wind from the south-southwest (210°) at 3 knots; LAS is VFR, wind from the south (190°) at 12 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: 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 1W: thunderstorms (a convective SIGMET) up to 34,000 ft, moving from the southwest at 40 knots, until 9:55 pm CDT (02:55 UTC). Over the route from 798 to 988 nm out.

as issued

WSUS33 KKCI 120055
MKCW WST 120055
CONVECTIVE SIGMET 1W
VALID UNTIL 0255Z
CO NM WY AZ UT
FROM 40NNW CHE-40WNW TBE-60WNW CME-40N SJN-40ESE MTU-40NNW CHE
AREA SEV TS MOV FROM 23040KT. TOPS TO FL340.
WIND GUSTS TO 60KT POSS.

SIGMET 4W: thunderstorms (a convective SIGMET) up to 28,000 ft, moving from the southwest at 20 knots, until 9:55 pm CDT (02:55 UTC). Near the route, 1128 nm along the route.

as issued

WSUS33 KKCI 120055
MKCW WST 120055
CONVECTIVE SIGMET 4W
VALID UNTIL 0255Z
AZ
FROM 60NE TBC-30S INW-100ESE BZA-70SE EED-50NW TBC-60NE TBC
DMSHG AREA EMBD TS MOV FROM 21020KT. TOPS TO FL280.

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 259 to 669 nm out.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the last 589 nm of the route.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 729 to 1258 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 798 to 968 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 798 to 918 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1008 to 1277 nm out.
AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the last 269 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 1118 to 1248 nm out.

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

urgent GLF6 at 45,000 ft, 28 nm south, 6:57 pm CDT (23:57 UTC): severe turbulence, remarks: a/c had to exit auto pilot, 45 degree pitch-zdv. 988 nm along the route, 28 nm south of the line.
as filed, and in English
```
FMN UUA /OV RSK280050/TM 2357/FL450/TP GLF6/TB SEV/RM A/C HAD TO EXIT AUTO PILOT, 45 DEGREE PITCH-ZDV
```
Report
an urgent report filed through FMN
Where
50 nm west (280°) of RSK
Time
23:57 UTC
Height
at 45,000 ft
Aircraft
GLF6
Turbulence
severe
Remarks
a/c had to exit auto pilot, 45 degree pitch-zdv
UAL2238 at 38,000 ft, 6 nm northwest, 6:44 pm CDT (23:44 UTC): moderate turbulence, wind 244° at 64 knots. 868 nm along the route, 6 nm northwest of the line.
as filed, and in English
```
ARP UAL2238 3807N 10649W 2344 F380 244/064KT TB CONT MOD TURB IC
```
Report
a routine report filed through ARP
GLF4 at 43,000 ft, 16 nm southeast, 7:09 pm CDT (00:09 UTC): moderate chop turbulence, remarks: ZDVWC-38. 928 nm along the route, 16 nm southeast of the line.
as filed, and in English
```
FMN UA /OV RSK360050/TM 0009/FL430/TP GLF4/TB MOD CHOP/RM ZDVWC-38
```
Report
a routine report filed through FMN
Where
50 nm north (360°) of RSK
Time
00:09 UTC
Height
at 43,000 ft
Aircraft
GLF4
Turbulence
moderate chop
Remarks
ZDVWC-38
GLF4 at 43,000 ft, 26 nm south, 7:15 pm CDT (00:15 UTC): moderate turbulence, remarks: zdvwc. 978 nm along the route, 26 nm south of the line.
as filed, and in English
```
FMN UA /OV RSK290045/TM 0015/FL430/TP GLF4/TB CONS MOD/RM ZDVWC
```
Report
a routine report filed through FMN
Where
45 nm west (290°) of RSK
Time
00:15 UTC
Height
at 43,000 ft
Aircraft
GLF4
Turbulence
continuous moderate
Remarks
zdvwc
UAL493 at 24,000 ft, 16 nm north, 5:54 pm CDT (22:54 UTC): moderate turbulence. 1198 nm along the route, 16 nm north of the line.
as filed, and in English
```
ARP UAL493 3648N 11330W 2254 F240 TB MODERATE SK IN CLOUDS IC LIGHT
```
Report
a routine report filed through ARP
E145 at 15,000 ft, 45 nm southwest, 8:45 pm CDT (01:45 UTC): moderate chop turbulence, light rime icing, -9 °C. At the destination end, 45 nm southwest of the line.
as filed, and in English
```
LAS UA /OV LAS213045/TM 0145/FL150/TP E145/TA M09/TB MOD CHOP/IC LGT RIME
```
Report
a routine report filed through LAS
Where
45 nm southwest (213°) of LAS
Time
01:45 UTC
Height
at 15,000 ft
Aircraft
E145
Temperature
−9 °C
Turbulence
moderate chop
Icing
light rime
A21N at 31,000 ft, 10 nm south, 7:24 pm CDT (00:24 UTC): remarks: mountain wave +/-10-20KT ZDVWC-29. 759 nm along the route, 10 nm south of the line.
as filed, and in English
```
PUB UA /OV PUB/TM 0024/FL310/TP A21N/RM MTN WAVE +/-10-20KT ZDVWC-29
```
Report
a routine report filed through PUB
Where
over PUB
Time
00:24 UTC
Height
at 31,000 ft
Aircraft
A21N
Remarks
mountain wave +/-10-20KT ZDVWC-29
GLF6 at 40,000 ft, 43 nm north, 7:48 pm CDT (00:48 UTC): light to moderate chop turbulence, remarks: ZDVWC-46. 768 nm along the route, 43 nm north of the line.
as filed, and in English
```
COS UA /OV COS340020/TM 0048/FL400/TP GLF6/TB LGT-MOD CHOP/RM ZDVWC-46
```
Report
a routine report filed through COS
Where
20 nm north (340°) of COS
Time
00:48 UTC
Height
at 40,000 ft
Aircraft
GLF6
Turbulence
light to moderate chop
Remarks
ZDVWC-46
E55P at 38,000 ft, 45 nm north, 8:23 pm CDT (01:23 UTC): light chop turbulence, remarks: ZDVWC-05. 778 nm along the route, 45 nm north of the line.
as filed, and in English
```
DEN UA /OV FQF200040/TM 0123/FL380/TP E55P/TB LGT CHOP/RM ZDVWC-05
```
Report
a routine report filed through DEN
Where
40 nm south (200°) of FQF
Time
01:23 UTC
Height
at 38,000 ft
Aircraft
E55P
Turbulence
light chop
Remarks
ZDVWC-05
B737 at 25,000 ft, 29 nm north, 7:29 pm CDT (00:29 UTC): light rime icing, 0 °C, remarks: during the climb ZDVWC-29. 778 nm along the route, 29 nm north of the line.
as filed, and in English
```
COS UA /OV BRK242015/TM 0029/FL250/TP B737/SK TOP280/TA 00/IC LGT RIME/RM DURC ZDVWC-29
```
Report
a routine report filed through COS
Where
15 nm southwest (242°) of BRK
Time
00:29 UTC
Height
at 25,000 ft
Aircraft
B737
Sky
TOP280
Temperature
0 °C
Icing
light rime
Remarks
during the climb ZDVWC-29
CL35 at 43,000 ft, 9 nm south, 7:21 pm CDT (00:21 UTC): remarks: mtw +/-300FT zdvwc. 798 nm along the route, 9 nm south of the line.
as filed, and in English
```
PUB UA /OV PUB250040/TM 0021/FL430/TP CL35/RM MTW +/-300FT ZDVWC
```
Report
a routine report filed through PUB
Where
40 nm west (250°) of PUB
Time
00:21 UTC
Height
at 43,000 ft
Aircraft
CL35
Remarks
mtw +/-300FT zdvwc
BE9L at 20,000 ft, 16 nm south, 7:34 pm CDT (00:34 UTC): light rime icing, -9 °C, remarks: ZDVWC-41. 838 nm along the route, 16 nm south of the line.
as filed, and in English
```
ALS UA /OV ALS330035/TM 0034/FL200/TP BE9L/TA M09/IC LGT RIME/RM ZDVWC-41
```
Report
a routine report filed through ALS
Where
35 nm northwest (330°) of ALS
Time
00:34 UTC
Height
at 20,000 ft
Aircraft
BE9L
Temperature
−9 °C
Icing
light rime
Remarks
ZDVWC-41
E145 at 7,400 ft, 45 nm south, 7:15 pm CDT (00:15 UTC): remarks: base reported below minimums 1/2 miles visibility ZDVWC-41. 838 nm along the route, 45 nm south of the line.
as filed, and in English
```
ALS UA /OV KALS/TM 0015/FL074/TP E145/RM BASE REPORTED BELOW MINIMUMS 1/2 SM VIS ZDVWC-41
```
Report
a routine report filed through ALS
Where
over KALS
Time
00:15 UTC
Height
at 7,400 ft
Aircraft
E145
Remarks
base reported below minimums 1/2 miles visibility ZDVWC-41
PRM1 at 41,000 ft, 25 nm south, 6:38 pm CDT (23:38 UTC): light to moderate clear-air turbulence, remarks: ZDVWC-46. 858 nm along the route, 25 nm south of the line.
as filed, and in English
```
ALS UA /OV ALS290035/TM 2338/FL410/TP PRM1/TB LGT-MOD CAT/RM ZDVWC-46
```
Report
a routine report filed through ALS
Where
35 nm west (290°) of ALS
Time
23:38 UTC
Height
at 41,000 ft
Aircraft
PRM1
Turbulence
light to moderate clear-air turbulence
Remarks
ZDVWC-46

8 more routine reports are on the map.

Winds aloft along the route, and the time en route the forecast for use 20:00–03:00 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	210° at 26 kt	+14 kt	11 °C	106 kt	12 h 08 min	7:01 am PDT (14:01 UTC)
6,500 ft	220° at 25 kt	+19 kt	16 °C	101 kt	12 h 45 min	7:38 am PDT (14:38 UTC)
8,500 ft	230° at 24 kt	+21 kt	12 °C	99 kt	13 h	7:53 am PDT (14:53 UTC)
10,500 ft	230° at 26 kt	+23 kt	8 °C	97 kt	13 h 16 min	8:09 am PDT (15:09 UTC)
12,500 ft	230° at 26 kt	+24 kt	4 °C	96 kt	13 h 24 min	8:17 am PDT (15:17 UTC)
14,500 ft	230° at 28 kt	+26 kt	0 °C	94 kt	13 h 41 min	8:34 am PDT (15:34 UTC)
16,500 ft	230° at 30 kt	+28 kt	-5 °C	92 kt	13 h 59 min	8:52 am PDT (15:52 UTC)
18,000 ft FL180	230° at 32 kt	+30 kt	-8 °C	90 kt	14 h 18 min	9:11 am PDT (16:11 UTC)
24,000 ft FL240	240° at 32 kt	+31 kt	-20 °C	89 kt	14 h 28 min	9:21 am PDT (16:21 UTC)
30,000 ft FL300	240° at 48 kt	+48 kt	-30 °C	72 kt	17 h 52 min	12:45 pm PDT (19:45 UTC)
34,000 ft FL340	250° at 51 kt	+52 kt	-38 °C	68 kt	18 h 56 min	1:49 pm PDT (20:49 UTC)
39,000 ft FL390	260° at 50 kt	+52 kt	-48 °C	68 kt	18 h 56 min	1:49 pm PDT (20:49 UTC)

Based on data from the 11th at 18:00 UTC; valid on the 12th at 00:00 UTC for use 20:00 to 03:00 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	210/13	260/11 17°	270/18 10°	290/21 4°	310/20 -8°	330/25 -19°	320/49 -34°	320/60 -44°	320/59 -50°
BRL	used from 100 nm out; 51 nm from the line	200/20	250/21 16°	240/22 10°	260/20 5°	270/16 -7°	290/22 -18°	320/41 -34°	320/56 -43°	310/68 -53°
COU	used from 150 nm out; 64 nm from the line	210/16	220/19 15°	240/33 10°	250/29 7°	280/21 -6°	280/19 -18°	300/34 -31°	300/40 -42°	300/60 -52°
MKC	used from 250 nm out; 40 nm from the line	200/28	220/30 16°	270/20 11°	280/22 7°	260/27 -6°	270/27 -18°	280/38 -32°	270/38 -40°	280/50 -52°
SLN	used from 349 nm out; 75 nm from the line	190/37	220/39 20°	240/31 14°	250/24 7°	260/25 -7°	250/26 -17°	250/44 -31°	260/47 -40°	260/47 -50°
GLD	used from 549 nm out; 54 nm from the line		190/29	200/30 15°	240/23 8°	250/39 -7°	230/39 -19°	230/57 -31°	240/67 -39°	250/62 -49°
PUB	used from 699 nm out; 39 nm from the line			210/24 16°	210/28 8°	230/43 -8°	240/42 -21°	240/77 -30°	240/72 -36°	250/51 -47°
ALS	used from 798 nm out; 47 nm from the line				210/32 5°	230/48 -8°	230/49 -20°	230/78 -30°	240/74 -36°	240/61 -47°
FMN	used from 898 nm out; 67 nm from the line			220/25 13°	220/28 4°	210/51 -9°	220/59 -21°	230/78 -30°	230/77 -36°	230/66 -46°
BCE	used from 1048 nm out; 68 nm from the line				210/47 0°	200/50 -12°	220/31 -23°	220/56 -26°	220/58 -35°	230/58 -45°
LAS	used from 1198 nm out; 65 nm from the line		200/25 11°	230/22 5°	240/25 -1°	220/37 -12°	220/44 -21°	210/52 -27°	210/60 -34°	220/58 -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-southwest (210°) at 3 knots	10+ mi	none	754 ft	7:53 pm CDT (00:53 UTC)
SPI Springfield, IL	70 nm out, 10 nm southeast of the line, tower	VFR	from the south-southeast (160°) at 6 knots	10+ mi	none	597 ft	00:52 UTC
CHT Chillicothe, MO	240 nm out, 1 nm west of the line	VFR	from the south (180°) at 4 knots	10+ mi	none	783 ft	23:35 UTC
STJ St Joseph, MO	309 nm out, 7 nm northeast of the line, tower	VFR	from the south (170°) at 8 knots	10+ mi	none	826 ft	00:53 UTC
MHK Manhattan, KS	389 nm out, 22 nm south of the line, tower	VFR	from the south (190°) at 8 knots	10+ mi	none	1,066 ft	00:52 UTC
OEL Oakley, KS	579 nm out, 7 nm northwest of the line	VFR	from the southwest (220°) at 12 knots, gusting to 16	10+ mi	none	3,045 ft	23:35 UTC
PUB Pueblo, CO	759 nm out, 10 nm south of the line, tower	VFR Sky: a few clouds at 12,000 feet	from the west (280°) at 12 knots	10+ mi	none	4,729 ft	00:53 UTC
ANK Salida, CO	828 nm out, 21 nm north of the line	VFR Sky: a few clouds at 11,000 feet	from the south (190°) at 12 knots	10+ mi	none	7,523 ft	01:35 UTC
BDG Blanding, UT	998 nm out, 7 nm northwest of the line	VFR	from the south-southwest (200°) at 21 knots, gusting to 33	10+ mi	none	5,867 ft	22:15 UTC
PGA Page, AZ	1098 nm out, 7 nm south of the line	VFR Sky: a few clouds at 7,000 feet, scattered clouds at 12,000 feet	from the south (190°) at 12 knots, gusting to 20	10+ mi	none	4,316 ft	00:53 UTC
AZC Colorado City, AZ	1178 nm out, 19 nm north of the line	VFR Sky: scattered clouds at 1,500 feet, a broken layer at 4,500 feet, overcast at 6,000 feet Weather: light rain	from the southeast (140°) at 6 knots	10+ mi	4,500 ft	4,873 ft	01:35 UTC
LAS Las Vegas, NV	destination	VFR Sky: a few clouds at 7,500 feet, scattered clouds at 10,000 feet, a broken layer at 15,000 feet	from the south (190°) at 12 knots	10+ mi	15,000 ft	2,183 ft	5:56 pm PDT (00:56 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, 7:01 am PDT (14:01 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 VFR

The whole forecast for LAS

From Sun 5:00 pm PDT (00:00 UTC): wind from the south-southwest at 14 knots, gusting to 24, visibility more than 6 miles, showers nearby, a few clouds at 6,000 feet, scattered clouds at 8,000 feet and more above
From Sun 8:00 pm PDT (03:00 UTC): wind from the south at 12 knots, gusting to 20, 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 8:00 pm PDT (03:00 UTC): wind from the southwest at 10 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.