Plan a flight · Sun 8:27 pm PDT (03:27 UTC)

Harry Reid International to Missoula Montana Airport LAS → MSO

652 nautical miles (751 statute miles) north on a straight line, true course 004°, about 353° magnetic at the departure end (variation 11E). At 120 knots that is 3 h 40 min at the quickest height in today's winds (34,000 ft, a 58-knot tailwind), arriving about 1:07 am MDT (07:07 UTC), after sunset at the destination. 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: 222 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 W12W: thunderstorms (a convective SIGMET) up to 31,000 ft, moving from the southwest at 20 knots, until 9:55 pm PDT (04:55 UTC). Over the route from 237 to 346 nm out.
as issued
```
WSUS33 KKCI 120255
MKCW WST 120255
CONVECTIVE SIGMET 12W
VALID UNTIL 0455Z
NV
FROM 40SSE TWF-10W ELY-30SE OAL-30W OAL-70WSW TWF-40SSE TWF
AREA TS MOV FROM 24020KT. TOPS TO FL310.
```
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the first 553 nm of the route.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the first 188 nm of the route.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the last 642 nm of the route.
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 last 198 nm of the route.
AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the last 188 nm of the route.
AIRMET ZULU 2C: moderate icing up to 20,000 ft. Over the last 89 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 LAS.

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

E145 at 15,000 ft, 45 nm southwest, 6:45 pm PDT (01:45 UTC): moderate chop turbulence, light rime icing, -9 °C. At the departure 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
H25B at 17,000 ft, 30 nm southwest, 7:44 pm PDT (02:44 UTC): light rime icing, -10 °C, remarks: rndrz arrival. At the departure 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
B39M at 3,800 ft, 0 nm west, 7:30 pm PDT (02:30 UTC): no turbulence, wind 190° at 21 knots, remarks: during the descent runway 26L las. At the departure end, 0 nm west of the line.
as filed, and in English
```
LAS UA /OV 08006/TM 0230/FL038/TP B39M/WV 19021KT/TB NEG/RM DURD RY26L LAS
```
Report
a routine report filed through LAS
Where
wind from 080° at 6 knots
Time
02:30 UTC
Height
at 3,800 ft
Aircraft
B39M
Wind
from 190° at 21 knots
Turbulence
none
Remarks
during the descent runway 26L las
PC12 at 14,000 ft, 38 nm west, 7:13 pm PDT (02:13 UTC): light turbulence up to 21,000 ft, light rime icing from 10,000 ft to 14,000 ft, -10 °C. 415 nm along the route, 38 nm west of the line.
as filed, and in English
```
BOI UA /OV BOI117049/TM 0213/FL140/TP PC12/TA M10/TB CONS LGT 210 BLO/IC LGT RIME 140-100 /ZLC
```
Report
a routine report filed through BOI
Where
49 nm southeast (117°) of BOI
Time
02:13 UTC
Height
at 14,000 ft
Aircraft
PC12
Temperature
−10 °C
Turbulence
continuous light at 21,000 ft below
Icing
light rime from 14,000 ft to 10,000 ft zlc
E175 at 5,700 ft, 8 nm east, 7:59 pm PDT (02:59 UTC): a broken layer above 5,700 ft, remarks: during the descent runway 31. 445 nm along the route, 8 nm east of the line.
as filed, and in English
```
SUN UA /OV KSUN/TM 0259/FL057/TP E175/SK BKN057-TOPUNKN/RM DURD RY31
```
Report
a routine report filed through SUN
Where
over KSUN
Time
02:59 UTC
Height
at 5,700 ft
Aircraft
E175
Sky
a broken layer from 5,700 ft, tops unknown
Remarks
during the descent runway 31
PC12 at 6,000 ft, 8 nm east, 6:09 pm PDT (01:09 UTC): scattered clouds up to 6,000 ft, remarks: multiple scattered layers during the descent runway 31. 445 nm along the route, 8 nm east of the line.
as filed, and in English
```
SUN UA /OV KSUN/TM 0109/FL060/TP PC12/SK SCT-TOP060/WX FV05SM/RM MULTIPLE SCT LAYERS DURD RY31
```
Report
a routine report filed through SUN
Where
over KSUN
Time
01:09 UTC
Height
at 6,000 ft
Aircraft
PC12
Sky
scattered clouds, tops 6,000 ft
Weather
flight visibility 5 miles
Remarks
multiple scattered layers during the descent runway 31
CL30 at 4,200 ft, 1 nm southeast, 8:16 pm PDT (03:16 UTC): no icing, overcast above 4,200 ft, remarks: during the descent ils runway 12. At the destination end, 1 nm southeast of the line.
as filed, and in English
```
MSO UA /OV MSO/TM 0316/FL042/TP CL30/SK OVC042/WX 2 1/2SM/IC NEG/RM DURD ILS RY 12
```
Report
a routine report filed through MSO
Where
over MSO
Time
03:16 UTC
Height
at 4,200 ft
Aircraft
CL30
Sky
overcast from 4,200 ft
Weather
2, 1/2SM
Icing
none
Remarks
during the descent ils runway 12
BCS1 at 3,700 ft, 1 nm southeast, 6:47 pm PDT (01:47 UTC): snow, rain, remarks: during the descent ils runway 12. At the destination end, 1 nm southeast of the line.
as filed, and in English
```
MSO UA /OV MSO/TM 0147/FL037/TP BCS1/SK 037/WX SN RA/RM DURD ILS RY 12
```
Report
a routine report filed through MSO
Where
over MSO
Time
01:47 UTC
Height
at 3,700 ft
Aircraft
BCS1
Sky
at 3,700 ft
Weather
snow, rain
Remarks
during the descent ils runway 12
C25B at 4,100 ft, 1 nm southeast, 5:36 pm PDT (00:36 UTC): no icing, overcast above 4,100 ft, remarks: during the descent ils runway 12. At the destination end, 1 nm southeast of the line.
as filed, and in English
```
MSO UA /OV MSO/TM 0036/FL041/TP C25B/SK OVC041/IC NEG/RM DURD ILS RY 12
```
Report
a routine report filed through MSO
Where
over MSO
Time
00:36 UTC
Height
at 4,100 ft
Aircraft
C25B
Sky
overcast from 4,100 ft
Icing
none
Remarks
during the descent ils runway 12

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 7 forecast points nearest it (LAS, ELY, BAM, PIH, BOI, DLN, GPI). A plus sign is a headwind, a minus sign a tailwind.

Height	Average wind	Head- or tailwind	Temperature	Ground speed	Time en route	Arrival
8,500 ft	200° at 15 kt	−14 kt	0 °C	134 kt	4 h 52 min	2:19 am MDT (08:19 UTC)
10,500 ft	210° at 17 kt	−15 kt	-2 °C	135 kt	4 h 50 min	2:17 am MDT (08:17 UTC)
12,500 ft	220° at 22 kt	−18 kt	-5 °C	138 kt	4 h 43 min	2:10 am MDT (08:10 UTC)
14,500 ft	210° at 30 kt	−26 kt	-9 °C	146 kt	4 h 28 min	1:55 am MDT (07:55 UTC)
16,500 ft	210° at 38 kt	−34 kt	-13 °C	154 kt	4 h 14 min	1:41 am MDT (07:41 UTC)
18,000 ft FL180	210° at 44 kt	−40 kt	-16 °C	160 kt	4 h 04 min	1:31 am MDT (07:31 UTC)
24,000 ft FL240	210° at 61 kt	−55 kt	-25 °C	175 kt	3 h 44 min	1:11 am MDT (07:11 UTC)
30,000 ft FL300	210° at 63 kt	−55 kt	-31 °C	175 kt	3 h 44 min	1:11 am MDT (07:11 UTC)
34,000 ft FL340	210° at 67 kt	−58 kt	-34 °C	178 kt	3 h 40 min	1:07 am MDT (07:07 UTC)
39,000 ft FL390	220° at 61 kt	−50 kt	-42 °C	170 kt	3 h 50 min	1:17 am MDT (07:17 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	6,000	9,000	12,000	18,000	24,000	30,000	34,000	39,000
LAS	used from 0 nm out; 25 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°
ELY	used from 99 nm out; 70 nm from the line		200/39 3°	210/27 -2°	210/45 -15°	220/56 -24°	210/60 -28°	210/63 -34°	220/61 -43°
BAM	used from 297 nm out; 111 nm from the line		310/7 0°	270/19 -7°	200/38 -17°	190/49 -28°	220/69 -29°	220/63 -33°	230/48 -41°
PIH	used from 346 nm out; 97 nm from the line	L/V	240/13 1°	240/15 -3°	210/42 -15°	200/70 -25°	220/74 -29°	220/71 -36°	220/62 -43°
BOI	used from 395 nm out; 81 nm from the line	300/7 2°	280/5 -4°	210/16 -9°	210/60 -20°	210/75 -29°	210/63 -32°	220/64 -32°	220/54 -39°
DLN	used from 494 nm out; 83 nm from the line		090/6 -6°	240/22 -4°	210/34 -16°	210/62 -25°	210/66 -34°	210/82 -36°	220/77 -42°
GPI	used from 642 nm out; 89 nm from the line	070/19 -5°	100/16 -7°	080/10 -8°	130/8 -19°	170/37 -28°	200/50 -40°	210/43 -40°	220/41 -42°

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	Elevation
LAS Las Vegas, NV	departure	no report just now	2,183 ft
ELY Ely, NV	198 nm out, 4 nm south of the line	no report just now	6,259 ft
LWL Wells, NV	306 nm out, 11 nm west of the line	no report just now	5,769 ft
TWF Twin Falls, ID	385 nm out, 4 nm east of the line, tower	no report just now	4,153 ft
SUN Hailey, ID	445 nm out, 8 nm east of the line, tower	no report just now	5,319 ft
LLJ Challis, ID	504 nm out, 8 nm northeast of the line	no report just now	5,075 ft
SMN Salmon, ID	544 nm out, 18 nm east of the line	no report just now	4,044 ft
HRF Hamilton, MT	613 nm out, 2 nm east of the line	no report just now	3,635 ft
MSO Missoula, MT	destination	no report just now	3,205 ft

The highest airport on this list sits at 6,259 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At MSO when you get there the forecast at the estimated arrival, 1:07 am MDT (07:07 UTC)

MSO has no terminal forecast; use the nearest airport that does.

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

Daylight

Sunset at LAS 6:08 pm PDT (01:08 UTC), at MSO 6:54 pm MDT (00:54 UTC) (civil twilight ends 7:25 pm MDT (01:25 UTC)). At 120 knots the arrival at MSO is before sunrise there (7:49 am MDT (13:49 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 Pacific Southwest · loop National Weather Service

Radar now, the Pacific Northwest · loop National Weather Service

Radar now, the northern 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: Harry Reid International, Missoula Montana Airport.