Billings Logan International to Salt Lake City International BIL → SLC
337 nautical miles (387 statute miles) southwest on a straight line, true course 208°, about 198° magnetic at the departure end (variation 10E). At 120 knots that is 2 h 56 min at the quickest height in today's winds (4,500 ft, a 5-knot headwind), arriving about 11:01 am MDT (17:01 UTC). Right now BIL is VFR, wind from the southwest (220°) at 4 knots; SLC is VFR, wind from the south-southeast (160°) at 18 knots, gusting to 27. 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 last 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 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 228 nm of the route.
- 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.
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 BIL.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- A319 at 19,000 ft, 31 nm south, 7:53 am MDT (13:53 UTC): moderate turbulence, moderate rime icing, -12 °C, wind 234° at 38 knots, remarks: during the descent. At the destination end, 31 nm south of the line.
as filed, and in English
SLC UA /OV FFU/TM 1353/FL190/TP A319/TA M12/WV 234038/TB MOD TURB/IC MOD RIME/RM DURD
- Report
- a routine report filed through SLC
- Where
- over FFU
- Time
- 13:53 UTC
- Height
- at 19,000 ft
- Aircraft
- A319
- Temperature
- −12 °C
- Wind
- from 234° at 38 knots
- Turbulence
- moderate turbulence
- Icing
- moderate rime
- Remarks
- during the descent
- C25A at 5,000 ft, 3 nm west, 7:00 am MDT (13:00 UTC): light rime icing, 4 °C, remarks: lt rime in the descent. At the departure end, 3 nm west of the line.
as filed, and in English
BIL UA /OV 100006/TM 1300/FL050/TP C25A/TA 4/IC LT RIME/RM LT RIME IN THE DESCENT
- Report
- a routine report filed through BIL
- Where
- wind from 100° at 6 knots
- Time
- 13:00 UTC
- Height
- at 5,000 ft
- Aircraft
- C25A
- Temperature
- 4 °C
- Icing
- lt rime
- Remarks
- lt rime in the descent
- PC12 at 11,500 ft, 21 nm west, 7:37 am MDT (13:37 UTC): a routine report with nothing remarked on. 277 nm along the route, 21 nm west of the line.
as filed, and in English
LGU UA /OV LGU/TM 1337/FL115/TP PC12/SK TOP 115/ZLC
- Report
- a routine report filed through LGU
- Where
- over LGU
- Time
- 13:37 UTC
- Height
- at 11,500 ft
- Aircraft
- PC12
- Sky
- top 11,500 ft; zlc
- E75L descending, 3 nm west, 7:55 am MDT (13:55 UTC): no icing, overcast above 7,000 ft, 6 °C, remarks: moderate precip. At the destination end, 3 nm west of the line.
as filed, and in English
SLC UA /OV TCH358005/TM 1355/FLDURD/TP E75L/SK OVC070/TA +6/IC NEG/RM MOD PRECIP
- Report
- a routine report filed through SLC
- Where
- 5 nm north (358°) of TCH
- Time
- 13:55 UTC
- Height
- during the descent
- Aircraft
- E75L
- Sky
- overcast from 7,000 ft
- Temperature
- +6
- Icing
- none
- Remarks
- moderate precip
- B738 at 20,000 ft, 7 nm east, 7:30 am MDT (13:30 UTC): light turbulence. At the destination end, 7 nm east of the line.
as filed, and in English
SLC UA /OV SLC040014/TM 1330/FL200/TP B738/TB CONS LGT 200-230 DURC/ZLC
- Report
- a routine report filed through SLC
- Where
- 14 nm northeast (040°) of SLC
- Time
- 13:30 UTC
- Height
- at 20,000 ft
- Aircraft
- B738
- Turbulence
- continuous light from 20,000 ft to 23,000 ft durc/zlc
- B190 at 12,000 ft, 16 nm south, 7:39 am MDT (13:39 UTC): light rime icing, remarks: during the climb. At the destination end, 16 nm south of the line.
as filed, and in English
SLC UA /OV FFU340015/TM 1339/FL120/TP B190/IC LGT RIME/RM DURC
- Report
- a routine report filed through SLC
- Where
- 15 nm north (340°) of FFU
- Time
- 13:39 UTC
- Height
- at 12,000 ft
- Aircraft
- B190
- Icing
- light rime
- Remarks
- during the climb
- A321 at 14,000 ft, 21 nm south, 7:15 am MDT (13:15 UTC): light to moderate turbulence, remarks: during the climb. At the destination end, 21 nm south of the line.
as filed, and in English
SLC UA /OV FFU340010/TM 1315/FL140/TP A321/TB CONT LGT-OCNL MOD TURB/RM DURC
- Report
- a routine report filed through SLC
- Where
- 10 nm north (340°) of FFU
- Time
- 13:15 UTC
- Height
- at 14,000 ft
- Aircraft
- A321
- Turbulence
- continuous lgt-ocnl moderate turbulence
- Remarks
- during the climb
- CRJ7 at 12,000 ft, 45 nm south, 6:01 am MDT (12:01 UTC): remarks: during the climb DITTI1. At the destination end, 45 nm south of the line.
as filed, and in English
SLC UA /OV FFU140015/TM 1201/FL120/TP CRJ7/SK VMC BELOW 110/RM DURC DITTI1
- Report
- a routine report filed through SLC
- Where
- 15 nm southeast (140°) of FFU
- Time
- 12:01 UTC
- Height
- at 12,000 ft
- Aircraft
- CRJ7
- Sky
- visual conditions below 11,000 ft
- Remarks
- during the climb DITTI1
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 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 4 forecast points nearest it (BIL, LND, PIH, SLC). 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 | 250° at 6 kt | +5 kt | 115 kt | 2 h 56 min | 11:01 am MDT (17:01 UTC) | |
| 6,500 ft | 240° at 7 kt | +6 kt | 114 kt | 2 h 57 min | 11:02 am MDT (17:02 UTC) | |
| 8,500 ft | 230° at 12 kt | +11 kt | 3 °C | 109 kt | 3 h 06 min | 11:11 am MDT (17:11 UTC) |
| 10,500 ft | 230° at 20 kt | +19 kt | 0 °C | 101 kt | 3 h 20 min | 11:25 am MDT (17:25 UTC) |
| 12,500 ft | 230° at 28 kt | +26 kt | -3 °C | 94 kt | 3 h 35 min | 11:40 am MDT (17:40 UTC) |
| 14,500 ft | 220° at 31 kt | +30 kt | -7 °C | 90 kt | 3 h 45 min | 11:50 am MDT (17:50 UTC) |
| 16,500 ft | 220° at 35 kt | +34 kt | -11 °C | 86 kt | 3 h 55 min | 12:00 pm MDT (18:00 UTC) |
| 18,000 ft FL180 | 220° at 38 kt | +37 kt | -14 °C | 83 kt | 4 h 04 min | 12:09 pm MDT (18:09 UTC) |
| 24,000 ft FL240 | 220° at 53 kt | +51 kt | -24 °C | 69 kt | 4 h 53 min | 12:58 pm MDT (18:58 UTC) |
| 30,000 ft FL300 | 220° at 60 kt | +59 kt | -32 °C | 61 kt | 5 h 31 min | 1:36 pm MDT (19:36 UTC) |
| 34,000 ft FL340 | 220° at 58 kt | +57 kt | -37 °C | 63 kt | 5 h 21 min | 1:26 pm MDT (19:26 UTC) |
| 39,000 ft FL390 | 220° at 59 kt | +57 kt | -44 °C | 63 kt | 5 h 21 min | 1:26 pm MDT (19:26 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| BIL | used from 0 nm out; 25 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° | |
| LND | used from 99 nm out; 86 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° | ||
| PIH | used from 198 nm out; 80 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° | |
| SLC | used from 247 nm out; 64 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° |
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 |
|---|---|---|---|---|---|---|---|
| BIL Billings, MT | departure | 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) |
| RED Red Lodge, MT | 49 nm out, 10 nm northwest of the line | no report just now | 5,762 ft | ||||
| JAC Jackson, WY | 158 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 |
| AFO Afton, WY | 208 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 |
| LGU Logan, UT | 277 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 |
| OGD Ogden, UT | 317 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 |
| SLC Salt Lake City, UT | destination | 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) |
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 SLC when you get there the forecast at the estimated arrival, 11:01 am MDT (17:01 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 VFR
The whole forecast for SLC
- 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
The forecast for BIL, the departure
- 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
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 BIL 6:32 pm MDT (00:32 UTC), at SLC 6:50 pm MDT (00:50 UTC) (civil twilight ends 7:18 pm MDT (01:18 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: Billings Logan International, Salt Lake City International.