Salt Lake City International to Billings Logan International SLC → BIL
337 nautical miles (387 statute miles) northeast on a straight line, true course 025°, about 014° magnetic at the departure end (variation 11E). At 120 knots that is 1 h 53 min at the quickest height in today's winds (30,000 ft, a 59-knot tailwind), arriving about 9:58 am MDT (15:58 UTC). Right now SLC is VFR, wind from the south-southeast (160°) at 18 knots, gusting to 27; BIL is VFR, wind from the southwest (220°) at 4 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: 2,317 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 W27W: thunderstorms (a convective SIGMET) up to 27,000 ft, moving from the west at 45 knots, until 9:55 am MDT (15:55 UTC). Over the first 129 nm of the route.
as issued
WSUS33 KKCI 121355 MKCW WST 121355 CONVECTIVE SIGMET 27W VALID UNTIL 1555Z WY UT ID FROM 40E PIH-20NW BPI-50E SLC-20SW SLC-40E PIH DMSHG AREA TS MOV FROM 26045KT. TOPS TO FL270.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the whole route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). 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). Over the last 228 nm of the route.
- AIRMET ZULU 2C: moderate icing up to 18,000 ft. Near the route, 317 nm along 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 SLC.
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 08:00–15:00 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 4 forecast points nearest it (SLC, PIH, LND, BIL). A plus sign is a headwind, a minus sign a tailwind.
| Height | Average wind | Head- or tailwind | Temperature | Ground speed | Time en route | Arrival |
|---|---|---|---|---|---|---|
| 5,500 ft | 240° at 6 kt | −5 kt | 125 kt | 2 h 42 min | 10:47 am MDT (16:47 UTC) | |
| 7,500 ft | 230° at 10 kt | −10 kt | 3 °C | 130 kt | 2 h 36 min | 10:41 am MDT (16:41 UTC) |
| 9,500 ft | 230° at 16 kt | −15 kt | 1 °C | 135 kt | 2 h 30 min | 10:35 am MDT (16:35 UTC) |
| 11,500 ft | 230° at 25 kt | −23 kt | -2 °C | 143 kt | 2 h 21 min | 10:26 am MDT (16:26 UTC) |
| 13,500 ft | 220° at 30 kt | −28 kt | -5 °C | 148 kt | 2 h 17 min | 10:22 am MDT (16:22 UTC) |
| 15,500 ft | 220° at 33 kt | −32 kt | -9 °C | 152 kt | 2 h 13 min | 10:18 am MDT (16:18 UTC) |
| 17,500 ft | 220° at 37 kt | −36 kt | -13 °C | 156 kt | 2 h 10 min | 10:15 am MDT (16:15 UTC) |
| 18,000 ft FL180 | 220° at 38 kt | −37 kt | -14 °C | 157 kt | 2 h 09 min | 10:14 am MDT (16:14 UTC) |
| 24,000 ft FL240 | 220° at 53 kt | −52 kt | -24 °C | 172 kt | 1 h 58 min | 10:03 am MDT (16:03 UTC) |
| 30,000 ft FL300 | 220° at 60 kt | −59 kt | -32 °C | 179 kt | 1 h 53 min | 9:58 am MDT (15:58 UTC) |
| 34,000 ft FL340 | 220° at 58 kt | −57 kt | -37 °C | 177 kt | 1 h 54 min | 9:59 am MDT (15:59 UTC) |
| 39,000 ft FL390 | 220° at 58 kt | −57 kt | -44 °C | 177 kt | 1 h 54 min | 9:59 am MDT (15:59 UTC) |
Based on data from the 12th at 06:00 UTC; valid on the 12th at 12:00 UTC for use 08:00 to 15:00 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| SLC | used from 0 nm out; 25 nm from the line | 200/16 | 210/23 4° | 220/34 -3° | 210/40 -16° | 220/66 -23° | 220/64 -31° | 220/57 -36° | 220/50 -43° | |
| PIH | used from 99 nm out; 82 nm from the line | 070/8 | 150/19 1° | 180/32 -4° | 210/44 -17° | 210/37 -28° | 210/74 -31° | 220/68 -35° | 220/60 -43° | |
| LND | used from 148 nm out; 76 nm from the line | 240/10 3° | 240/30 0° | 220/42 -13° | 230/52 -23° | 220/54 -33° | 220/52 -36° | 220/53 -44° | ||
| BIL | used from 247 nm out; 64 nm from the line | 300/14 | 270/19 -2° | 260/26 -2° | 220/28 -13° | 210/51 -25° | 220/56 -33° | 220/61 -39° | 220/72 -45° |
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 |
|---|---|---|---|---|---|---|---|
| SLC Salt Lake City, UT | departure | VFR Sky: a few clouds at 2,000 feet, scattered clouds at 7,000 feet, a broken layer at 9,500 feet, a broken layer at 20,000 feet | from the south-southeast (160°) at 18 knots, gusting to 27 | 10+ mi | 9,500 ft | 4,230 ft | 7:54 am MDT (13:54 UTC) |
| OGD Ogden, UT | 20 nm out, 12 nm northwest of the line, tower | marginal VFR Sky: overcast at 2,100 feet | from the north-northeast (030°) at 3 knots | 10+ mi | 2,100 ft | 4,472 ft | 13:53 UTC |
| LGU Logan, UT | 59 nm out, 21 nm west of the line | VFR Sky: a few clouds at 2,100 feet, a few clouds at 2,700 feet, overcast at 3,800 feet Weather: rain | from the north (010°) at 7 knots | 7 mi | 3,800 ft | 4,456 ft | 13:51 UTC |
| AFO Afton, WY | 129 nm out, 9 nm west of the line | VFR Sky: scattered clouds at 3,300 feet, a broken layer at 5,000 feet, overcast at 8,500 feet | calm | 10+ mi | 5,000 ft | 6,220 ft | 13:55 UTC |
| JAC Jackson, WY | 178 nm out, 24 nm west of the line, tower | VFR Sky: overcast at 5,000 feet | from the north-northeast (020°) at 7 knots | 10+ mi | 5,000 ft | 6,451 ft | 13:56 UTC |
| RED Red Lodge, MT | 287 nm out, 10 nm northwest of the line | no report just now | 5,762 ft | ||||
| BIL Billings, MT | destination | VFR Sky: scattered clouds at 2,100 feet, overcast at 3,700 feet | from the southwest (220°) at 4 knots | 10+ mi | 3,700 ft | 3,662 ft | 7:53 am MDT (13:53 UTC) |
The highest airport on this list sits at 6,451 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At BIL when you get there the forecast at the estimated arrival, 9:58 am MDT (15:58 UTC)
Wind from the north-northwest at 8 knots, visibility more than 6 miles, light rain snow, a broken layer at 1,200 feet, overcast at 2,200 feet marginal VFR
The whole forecast for BIL
- From Mon 6:00 am MDT (12:00 UTC): wind from the north-northwest at 8 knots, visibility more than 6 miles, light rain snow, a broken layer at 1,200 feet, overcast at 2,200 feet
- From Mon 1:00 pm MDT (19:00 UTC): wind light and variable, visibility more than 6 miles, scattered clouds at 1,500 feet, overcast at 2,500 feet
- From Mon 6:00 pm MDT (00:00 UTC): wind from the east at 9 knots, visibility 6 miles, light drizzle, mist, a few clouds at 300 feet, overcast at 1,800 feet
- From Mon 10:00 pm MDT (04:00 UTC): wind from the east at 9 knots, visibility 4 miles, light drizzle, mist, scattered clouds at 300 feet, overcast at 1,200 feet
- From Tue 3:00 am MDT (09:00 UTC): wind light and variable, visibility 3 miles, light rain, mist, scattered clouds at 300 feet, a broken layer at 1,200 feet and more above
The forecast for SLC, the departure
- From Mon 6:00 am MDT (12:00 UTC): wind from the south at 11 knots, visibility more than 6 miles, light rain showers, a few clouds at 2,000 feet, a broken layer at 5,000 feet
- From Mon 3:00 pm MDT (21:00 UTC): wind from the northwest at 11 knots, visibility more than 6 miles, light rain showers, scattered clouds at 2,000 feet, a broken layer at 5,000 feet
- 30% chance between Mon 3:00 pm MDT (21:00 UTC) and 6:00 pm MDT (00:00 UTC): wind variable at 15 knots, gusting to 25, visibility 4 miles, thunderstorms with rain, a broken layer at 3,000 feet (thunderheads)
- From Mon 11:00 pm MDT (05:00 UTC): wind from the south-southeast at 9 knots, visibility more than 6 miles, light rain showers, scattered clouds at 2,000 feet, a broken layer at 3,500 feet
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 SLC 6:50 pm MDT (00:50 UTC), at BIL 6:32 pm MDT (00:32 UTC) (civil twilight ends 7:02 pm MDT (01:02 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: Salt Lake City International, Billings Logan International.