Missoula Montana Airport to San Luis Obispo County Regional MSO → SBP
761 nautical miles (875 statute miles) southwest on a straight line, true course 205°, about 192° magnetic at the departure end (variation 13E). At 120 knots that is 6 h 14 min at the quickest height in today's winds (4,500 ft, a 2-knot tailwind), arriving about 1:53 pm PDT (20:53 UTC). 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 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 ZULU 2C: moderate icing up to 18,000 ft. Over the first 138 nm of the route.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the whole route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 326 nm of the route.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 148 to 375 nm out.
- AIRMET SIERRA 2E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 553 to 652 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 MSO.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
Not fetched just now.
Winds aloft along the route, and the time en route the forecast for use 14:00–21:00 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 8 forecast points nearest it (GPI, LWS, BOI, BAM, RNO, BIH, FAT, SBA). 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 | 360° at 2 kt | −2 kt | 0 °C | 122 kt | 6 h 14 min | 1:53 pm PDT (20:53 UTC) |
| 6,500 ft | 360° at 1 kt | −1 kt | 0 °C | 121 kt | 6 h 17 min | 1:56 pm PDT (20:56 UTC) |
| 8,500 ft | 270° at 2 kt | +1 kt | -4 °C | 119 kt | 6 h 24 min | 2:03 pm PDT (21:03 UTC) |
| 10,500 ft | 250° at 4 kt | +3 kt | -7 °C | 117 kt | 6 h 30 min | 2:09 pm PDT (21:09 UTC) |
| 12,500 ft | 240° at 7 kt | +6 kt | -10 °C | 114 kt | 6 h 41 min | 2:20 pm PDT (21:20 UTC) |
| 14,500 ft | 240° at 9 kt | +7 kt | -13 °C | 113 kt | 6 h 44 min | 2:23 pm PDT (21:23 UTC) |
| 16,500 ft | 240° at 11 kt | +9 kt | -16 °C | 111 kt | 6 h 51 min | 2:30 pm PDT (21:30 UTC) |
| 18,000 ft FL180 | 240° at 13 kt | +10 kt | -18 °C | 110 kt | 6 h 55 min | 2:34 pm PDT (21:34 UTC) |
| 24,000 ft FL240 | 250° at 14 kt | +9 kt | -27 °C | 111 kt | 6 h 51 min | 2:30 pm PDT (21:30 UTC) |
| 30,000 ft FL300 | 250° at 18 kt | +13 kt | -34 °C | 107 kt | 7 h 07 min | 2:46 pm PDT (21:46 UTC) |
| 34,000 ft FL340 | 230° at 26 kt | +23 kt | -37 °C | 97 kt | 7 h 51 min | 3:30 pm PDT (22:30 UTC) |
| 39,000 ft FL390 | 220° at 30 kt | +28 kt | -42 °C | 92 kt | 8 h 16 min | 3:55 pm PDT (22:55 UTC) |
Based on data from the 12th at 12:00 UTC; valid on the 12th at 18:00 UTC for use 14:00 to 21:00 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| GPI | used from 0 nm out; 106 nm from the line | L/V -3° | L/V -4° | L/V -6° | 210/19 -17° | 220/26 -32° | 190/23 -40° | 220/25 -39° | 220/34 -42° | |
| LWS | used from 49 nm out; 97 nm from the line | L/V | L/V -2° | 030/6 -5° | 050/10 -10° | 110/19 -21° | 150/22 -31° | 130/11 -36° | 200/6 -37° | 220/21 -40° |
| BOI | used from 99 nm out; 97 nm from the line | 360/9 1° | L/V -5° | 180/10 -12° | 200/58 -21° | 180/62 -31° | 200/41 -31° | 210/34 -32° | 200/29 -41° | |
| BAM | used from 296 nm out; 87 nm from the line | 270/8 -4° | 260/21 -11° | 190/44 -21° | 200/54 -28° | 210/38 -31° | 220/38 -35° | 210/35 -41° | ||
| RNO | used from 445 nm out; 65 nm from the line | L/V | 280/12 -4° | 260/15 -10° | 340/47 -17° | 340/75 -25° | 330/47 -37° | 280/20 -40° | 240/24 -42° | |
| BIH | used from 543 nm out; 65 nm from the line | L/V | 340/7 -3° | L/V -8° | 250/15 -17° | 330/30 -24° | 270/23 -34° | 230/35 -39° | 230/39 -44° | |
| FAT | used from 593 nm out; 42 nm from the line | L/V | 170/5 2° | 130/10 -4° | L/V -7° | 350/60 -11° | 340/62 -23° | 320/36 -38° | 270/25 -41° | 250/32 -44° |
| SBA | used from 741 nm out; 68 nm from the line | 270/5 | 250/6 2° | 260/10 -1° | 280/16 -3° | 340/45 -10° | 340/53 -22° | 300/29 -36° | 240/38 -40° | 230/53 -43° |
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 | no report just now | 3,205 ft | ||||
| HRF Hamilton, MT | 40 nm out, 16 nm east of the line | no report just now | 3,635 ft | ||||
| BOI Boise, ID | 217 nm out, 3 nm south of the line, tower | no report just now | 2,871 ft | ||||
| WMC Winnemucca, NV | 395 nm out, 1 nm west of the line | no report just now | 4,307 ft | ||||
| FLX Fallon, NV | 494 nm out, 10 nm northwest of the line | no report just now | 3,966 ft | ||||
| HTH Hawthorne, NV | 543 nm out, 18 nm east of the line | no report just now | 4,230 ft | ||||
| FAT Fresno, CA | 662 nm out, 9 nm east of the line, tower | no report just now | 335 ft | ||||
| PRB Paso Robles, CA | 731 nm out, 10 nm west of the line | no report just now | 838 ft | ||||
| SBP San Luis Obispo, CA | destination | no report just now | 212 ft |
The highest airport on this list sits at 4,307 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At SBP when you get there the forecast at the estimated arrival, 1:53 pm PDT (20:53 UTC)
SBP has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 6/8927 Kalispell, MT, Wednesday, October 14, 2026 through Wednesday, October 14, 2026 Local on the route, at the departure end · a VIP movement · starts Wednesday 14 October · ZSE
- 6/8923 Kalispell, MT, Wednesday, October 14, 2026 through Wednesday, October 14, 2026 Local on the route, at the departure end · a VIP movement · starts Wednesday 14 October · ZLC
- 6/7094 45NM NE MERCED, CA, Sunday, October 4, 2026 through Tuesday, October 20, 2026 UTC on the route, 612 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 20 October · ZOA
Daylight
Sunset at MSO 6:53 pm MDT (00:53 UTC), at SBP 6:30 pm PDT (01:30 UTC) (civil twilight ends 6:55 pm PDT (01:55 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, San Luis Obispo County Regional.