Missoula Montana Airport to Harry Reid International MSO → LAS
652 nautical miles (751 statute miles) south on a straight line, true course 185°, about 172° magnetic at the departure end (variation 13E). At 120 knots that is 5 h 49 min at the quickest height in today's winds (7,500 ft, a 8-knot headwind), arriving about 12:24 am PDT (07:24 UTC), after sunset at the destination. Right now MSO is marginal VFR, wind from the north (010°) at 4 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: 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 5W: thunderstorms (a convective SIGMET) up to 33,000 ft, moving from the southwest at 20 knots, until 8:55 pm MDT (02:55 UTC). Over the route from 395 to 405 nm out.
as issued
WSUS33 KKCI 120055 MKCW WST 120055 CONVECTIVE SIGMET 5W VALID UNTIL 0255Z NV FROM 10NNE BAM-40WSW BVL-60SW ELY-10SE OAL-30WNW OAL-10NNE BAM AREA TS MOV FROM 23020KT. TOPS TO FL330.
- AIRMET ZULU 2C: moderate icing up to 14,000 ft, from 6:00 pm MDT (00:00 UTC). Over the first 30 nm of the route.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft, from 6:00 pm MDT (00:00 UTC). Over the whole route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist), from 6:00 pm MDT (00:00 UTC). Over the whole route.
- AIRMET SIERRA 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist), from 6:00 pm MDT (00:00 UTC). Over the route from 10 to 208 nm out.
- AIRMET ZULU 3C: moderate icing up to 22,000 ft, from 6:00 pm MDT (00:00 UTC). Over the last 494 nm of the route.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft, from 6:00 pm MDT (00:00 UTC). Over the last 128 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 MSO.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- E75L at 14,000 ft, 5 nm southeast, 5:22 pm MDT (23:22 UTC): moderate turbulence from 14,000 ft to 21,000 ft, remarks: during the climb zlc. At the departure end, 5 nm southeast of the line.
as filed, and in English
MSO UA /OV 32S/TM 2322/FL140/TP E75L/TB MOD 140-210/RM DURC /ZLC
- Report
- a routine report filed through MSO
- Where
- over 32S
- Time
- 23:22 UTC
- Height
- at 14,000 ft
- Aircraft
- E75L
- Turbulence
- moderate from 14,000 ft to 21,000 ft
- Remarks
- during the climb zlc
- C25B at 4,100 ft, 1 nm southeast, 6:36 pm MDT (00:36 UTC): no icing, overcast above 4,100 ft, remarks: during the descent ils runway 12. At the departure 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
- PC12 at 6,000 ft, 8 nm east, 7:09 pm MDT (01:09 UTC): scattered clouds up to 6,000 ft, remarks: multiple scattered layers during the descent RY31. 208 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 RY31
- E550 at 21,000 ft, 8 nm east, 5:27 pm MDT (23:27 UTC): light turbulence, a few clouds above 7,000 ft, remarks: during the climb zlc. 208 nm along the route, 8 nm east of the line.
as filed, and in English
SUN UA /OV SUN/TM 2327/FL210/TP E550/SK FEW070/TB CONS LGT/RM DURC /ZLC
- Report
- a routine report filed through SUN
- Where
- over SUN
- Time
- 23:27 UTC
- Height
- at 21,000 ft
- Aircraft
- E550
- Sky
- a few clouds from 7,000 ft
- Turbulence
- continuous light
- Remarks
- during the climb zlc
- G280 at 41,000 ft, 35 nm southwest, 5:37 pm MDT (23:37 UTC): light to moderate clear-air turbulence, remarks: ZDVWC-46. At the destination end, 35 nm southwest of the line.
as filed, and in English
ALS UA /OV LAS190035/TM 2337/FL410/TP G280/TB LGT-MOD CAT/RM ZDVWC-46
- Report
- a routine report filed through ALS
- Where
- 35 nm south (190°) of LAS
- Time
- 23:37 UTC
- Height
- at 41,000 ft
- Aircraft
- G280
- Turbulence
- light to moderate clear-air turbulence
- Remarks
- ZDVWC-46
- B752 at 17,500 ft, 39 nm east, 4:48 pm MDT (22:48 UTC): a broken layer from 17,500 ft to 18,500 ft; overcast, remarks: layer of precip west of niitz 25 nautical miles lgt-hvy rain zlawc. At the destination end, 39 nm east of the line.
as filed, and in English
LAS UA /OV BLD065025/TM 2248/FL175/TP B752/SK BKN175-TOP185/OVC/RM LAYER OF PRECIP W OF NIITZ 25 NM LGT-HVY RAIN /ZLAWC AWC-WEB
- Report
- a routine report filed through LAS
- Where
- BLD065025 C
- Time
- 22:48 UTC
- Height
- at 17,500 ft
- Aircraft
- B752
- Sky
- a broken layer from 17,500 ft, tops 18,500 ft
- Remarks
- layer of precip west of niitz 25 nautical miles lgt-hvy rain zlawc
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 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 6 forecast points nearest it (DLN, BOI, PIH, BAM, ELY, 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 |
|---|---|---|---|---|---|---|
| 7,500 ft | 220° at 9 kt | +8 kt | 3 °C | 112 kt | 5 h 49 min | 12:24 am PDT (07:24 UTC) |
| 9,500 ft | 220° at 11 kt | +9 kt | 1 °C | 111 kt | 5 h 52 min | 12:27 am PDT (07:27 UTC) |
| 11,500 ft | 230° at 16 kt | +12 kt | -2 °C | 108 kt | 6 h 02 min | 12:37 am PDT (07:37 UTC) |
| 13,500 ft | 220° at 22 kt | +17 kt | -6 °C | 103 kt | 6 h 20 min | 12:55 am PDT (07:55 UTC) |
| 15,500 ft | 220° at 27 kt | +23 kt | -9 °C | 97 kt | 6 h 43 min | 1:18 am PDT (08:18 UTC) |
| 17,500 ft | 210° at 33 kt | +29 kt | -13 °C | 91 kt | 7 h 10 min | 1:45 am PDT (08:45 UTC) |
| 18,000 ft FL180 | 210° at 35 kt | +30 kt | -14 °C | 90 kt | 7 h 15 min | 1:50 am PDT (08:50 UTC) |
| 24,000 ft FL240 | 200° at 54 kt | +51 kt | -24 °C | 69 kt | 9 h 27 min | 4:02 am PDT (11:02 UTC) |
| 30,000 ft FL300 | 210° at 69 kt | +63 kt | -31 °C | 57 kt | 11 h 26 min | 6:01 am PDT (13:01 UTC) |
| 34,000 ft FL340 | 220° at 73 kt | +62 kt | -36 °C | 58 kt | 11 h 14 min | 5:49 am PDT (12:49 UTC) |
| 39,000 ft FL390 | 220° at 68 kt | +53 kt | -44 °C | 67 kt | 9 h 44 min | 4:19 am PDT (11:19 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| DLN | used from 0 nm out; 100 nm from the line | 080/10 -3° | 180/8 -3° | 180/23 -14° | 200/58 -22° | 200/80 -36° | 220/85 -41° | 230/81 -45° | ||
| BOI | used from 148 nm out; 84 nm from the line | 330/14 4° | 230/5 -2° | 220/20 -7° | 210/37 -20° | 200/59 -26° | 200/67 -34° | 210/73 -35° | 220/62 -41° | |
| PIH | used from 247 nm out; 93 nm from the line | 270/10 | 270/13 1° | 210/16 -2° | 200/56 -11° | 200/51 -23° | 200/68 -33° | 220/77 -37° | 230/73 -44° | |
| BAM | used from 297 nm out; 116 nm from the line | 270/8 4° | 230/27 -4° | 220/49 -18° | 210/52 -26° | 220/77 -29° | 220/71 -33° | 220/63 -43° | ||
| ELY | used from 346 nm out; 88 nm from the line | 210/20 4° | 240/21 -1° | 230/37 -13° | 200/58 -25° | 220/73 -27° | 220/73 -36° | 220/69 -44° | ||
| LAS | used from 544 nm out; 84 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 |
|---|---|---|---|---|---|---|---|
| MSO Missoula, MT | departure | marginal VFR Sky: a few clouds at 800 feet, overcast at 2,400 feet Weather: light rain | from the north (010°) at 4 knots | 7 mi | 2,400 ft | 3,205 ft | 7:10 pm MDT (01:10 UTC) |
| HRF Hamilton, MT | 40 nm out, 2 nm east of the line | IFR Sky: a few clouds at 300 feet, a broken layer at 1,300 feet, overcast at 1,900 feet Weather: light snow, mist | from the north (360°) at 9 knots | 2.5 mi | 1,300 ft | 3,635 ft | 01:15 UTC |
| SMN Salmon, ID | 109 nm out, 18 nm east of the line | VFR Sky: a few clouds at 1,600 feet, overcast at 3,200 feet Weather: light rain | from the north (350°) at 9 knots, gusting to 15 | 10+ mi | 3,200 ft | 4,044 ft | 00:56 UTC |
| LLJ Challis, ID | 148 nm out, 8 nm northeast of the line | marginal VFR Sky: overcast at 2,600 feet Weather: light rain | from the north-northwest (340°) at 11 knots | 10+ mi | 2,600 ft | 5,075 ft | 00:55 UTC |
| SUN Hailey, ID | 208 nm out, 8 nm east of the line, tower | marginal VFR Sky: scattered clouds at 300 feet, overcast at 1,500 feet Weather: light rain | calm | 5 mi | 1,500 ft | 5,319 ft | 01:24 UTC |
| TWF Twin Falls, ID | 267 nm out, 4 nm east of the line, tower | VFR Sky: overcast at 3,800 feet | from the west (270°) at 8 knots | 10+ mi | 3,800 ft | 4,153 ft | 00:53 UTC |
| LWL Wells, NV | 346 nm out, 11 nm west of the line | no report just now | 5,769 ft | ||||
| ELY Ely, NV | 455 nm out, 4 nm south of the line | VFR | from the south (170°) at 12 knots, gusting to 22 | 10+ mi | none | 6,259 ft | 00:53 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 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 LAS when you get there the forecast at the estimated arrival, 12:24 am PDT (07:24 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 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 MSO, the departure
- From Sun 6:00 pm MDT (00:00 UTC): wind from the south-southeast at 5 knots, visibility 6 miles, light rain, overcast at 2,500 feet
- At times between Sun 7:00 pm MDT (01:00 UTC) and 11:00 pm MDT (05:00 UTC): visibility 5 miles, light rain snow, mist, overcast at 1,500 feet
- From Mon 12:00 am MDT (06:00 UTC): wind from the east-southeast at 5 knots, visibility more than 6 miles, showers nearby, overcast at 2,500 feet
- 30% chance between Mon 3:00 am MDT (09:00 UTC) and 6:00 am MDT (12:00 UTC): visibility 6 miles, light snow, overcast at 2,500 feet
- From Mon 6:00 am MDT (12:00 UTC): wind from the east-southeast at 8 knots, visibility more than 6 miles, overcast at 5,000 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, 623 nm along the route · 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 MSO 6:54 pm MDT (00:54 UTC), at LAS 6:08 pm PDT (01:08 UTC) (civil twilight ends 6:34 pm PDT (01:34 UTC)). At 120 knots the arrival at LAS is before sunrise there (6:44 am PDT (13:44 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
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: Missoula Montana Airport, Harry Reid International.