Great Falls International to Santa Barbara Municipal GTF → SBA
872 nautical miles (1,003 statute miles) southwest on a straight line, true course 209°, about 196° magnetic at the departure end (variation 13E). At 120 knots that is 7 h 09 min at the quickest height in today's winds (4,500 ft, a 2-knot tailwind), arriving about 1:49 am PDT (08:49 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: 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 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 466 to 634 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 SIERRA 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the first 258 nm of the route.
- AIRMET ZULU 2C: moderate icing up to 16,000 ft. Over the first 158 nm of the route.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the first 614 nm of the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 555 nm of the route.
- AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the route from 168 to 624 nm out.
- AIRMET TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 15,000 ft. Over the route from 565 to 733 nm out.
- AIRMET SIERRA 6E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 842 to 862 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 GTF.
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 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 7 forecast points nearest it (GTF, DLN, BOI, BAM, 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 3 kt | −2 kt | 4 °C | 122 kt | 7 h 09 min | 1:49 am PDT (08:49 UTC) |
| 6,500 ft | light and variable | 0 | 4 °C | 120 kt | 7 h 16 min | 1:56 am PDT (08:56 UTC) |
| 8,500 ft | 200° at 4 kt | +4 kt | 1 °C | 116 kt | 7 h 31 min | 2:11 am PDT (09:11 UTC) |
| 10,500 ft | 210° at 12 kt | +12 kt | -1 °C | 108 kt | 8 h 04 min | 2:44 am PDT (09:44 UTC) |
| 12,500 ft | 220° at 19 kt | +19 kt | -5 °C | 101 kt | 8 h 38 min | 3:18 am PDT (10:18 UTC) |
| 14,500 ft | 210° at 24 kt | +23 kt | -9 °C | 97 kt | 8 h 59 min | 3:39 am PDT (10:39 UTC) |
| 16,500 ft | 210° at 28 kt | +27 kt | -13 °C | 93 kt | 9 h 23 min | 4:03 am PDT (11:03 UTC) |
| 18,000 ft FL180 | 210° at 31 kt | +31 kt | -16 °C | 89 kt | 9 h 48 min | 4:28 am PDT (11:28 UTC) |
| 24,000 ft FL240 | 210° at 48 kt | +48 kt | -24 °C | 72 kt | 12 h 07 min | 6:47 am PDT (13:47 UTC) |
| 30,000 ft FL300 | 210° at 68 kt | +68 kt | -31 °C | 52 kt | 16 h 46 min | 11:26 am PDT (18:26 UTC) |
| 34,000 ft FL340 | 220° at 68 kt | +66 kt | -36 °C | 54 kt | 16 h 09 min | 10:49 am PDT (17:49 UTC) |
| 39,000 ft FL390 | 230° at 62 kt | +58 kt | -44 °C | 62 kt | 14 h 04 min | 8:44 am PDT (15:44 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| GTF | used from 0 nm out; 25 nm from the line | 070/21 | 080/18 -6° | 120/5 -5° | 180/30 -14° | 200/53 -24° | 210/80 -38° | 220/83 -44° | 230/68 -46° | |
| DLN | used from 50 nm out; 70 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 248 nm out; 80 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° | |
| BAM | used from 396 nm out; 60 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° | ||
| BIH | used from 594 nm out; 62 nm from the line | L/V | 210/14 6° | 210/20 -2° | 230/26 -14° | 220/32 -24° | 220/63 -27° | 220/56 -35° | 230/50 -44° | |
| FAT | used from 743 nm out; 58 nm from the line | 180/7 | 170/9 7° | 200/20 3° | 210/27 -3° | 240/27 -14° | 230/38 -24° | 220/57 -27° | 230/42 -33° | 230/41 -44° |
| SBA | used from 792 nm out; 54 nm from the line | L/V | 170/13 7° | 220/23 4° | 220/30 -2° | 230/26 -14° | 230/34 -20° | 220/38 -28° | 220/37 -35° | 220/43 -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 |
|---|---|---|---|---|---|---|---|
| GTF Great Falls, MT | departure | no report just now | 3,680 ft | ||||
| HLN Helena, MT | 59 nm out, 4 nm east of the line, tower | no report just now | 3,877 ft | ||||
| BTM Butte, MT | 99 nm out, 5 nm south of the line | no report just now | 5,550 ft | ||||
| LLJ Challis, ID | 208 nm out, 22 nm west of the line | no report just now | 5,075 ft | ||||
| SUN Hailey, ID | 267 nm out, 3 nm southeast of the line, tower | no report just now | 5,319 ft | ||||
| EKO Elko, NV | 446 nm out, 15 nm east of the line | no report just now | 5,139 ft | ||||
| TMT Austin, NV | 545 nm out, 8 nm northwest of the line | no report just now | 5,735 ft | ||||
| BIH Bishop, CA | 683 nm out, 6 nm northwest of the line | no report just now | 4,124 ft | ||||
| DLO Delano, CA | 783 nm out, 6 nm southwest of the line | no report just now | 314 ft | ||||
| BFL Bakersfield, CA | 802 nm out, 11 nm east of the line, tower | no report just now | 509 ft | ||||
| SBA Santa Barbara, CA | destination | no report just now | 13 ft |
The highest airport on this list sits at 5,735 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At SBA when you get there the forecast at the estimated arrival, 1:49 am PDT (08:49 UTC)
SBA has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
No temporary flight restriction on or near this route right now.
Daylight
Sunset at GTF 6:43 pm MDT (00:43 UTC), at SBA 6:28 pm PDT (01:28 UTC) (civil twilight ends 6:54 pm PDT (01:54 UTC)). At 120 knots the arrival at SBA is before sunrise there (7:02 am PDT (14:02 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: Great Falls International, Santa Barbara Municipal.
