Louisville Muhammad Ali International to Salt Lake City International SDF → SLC
1,222 nautical miles (1,406 statute miles) west on a straight line, true course 286°, about 291° magnetic at the departure end (variation 5W). At 120 knots that is 11 h 52 min at the quickest height in today's winds (8,500 ft, a 17-knot headwind), arriving about 12:56 pm MDT (18:56 UTC). Right now SDF is marginal VFR, wind calm; SLC is VFR, wind from the east-southeast (120°) at 5 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: 1,645 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 SIERRA 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the first 89 nm of the route.
- AIRMET TANGO 3W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground). Over the route from 308 to 814 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 38,000 ft. Over the route from 785 to 1192 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the last 387 nm of the route.
- AIRMET TANGO 1W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground). Over the route from 924 to 1092 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the last 238 nm of the route.
- AIRMET TANGO 5W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Over the route from 1033 to 1092 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the last 179 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 SDF.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- B38M at 21,500 ft, 11 nm south, 12:33 am EDT (04:33 UTC): light turbulence up to 25,000 ft, remarks: during the descent flati star ZDVWC-13. 934 nm along the route, 11 nm south of the line.
as filed, and in English
DEN UA /OV DEN305065/TM 0433/FL215/TP B38M/TB LGT BLO 250/RM DURD FLATI STAR. ZDVWC-13
- Report
- a routine report filed through DEN
- Where
- 65 nm northwest (305°) of DEN
- Time
- 04:33 UTC
- Height
- at 21,500 ft
- Aircraft
- B38M
- Turbulence
- light below 25,000 ft
- Remarks
- during the descent flati star ZDVWC-13
Winds aloft along the route, and the time en route the forecast for use 02:00–09:00 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 12 forecast points nearest it (LOU, EVV, STL, COU, MKC, OMA, GRI, GLD, BFF, DEN, RKS, 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 | 230° at 26 kt | +19 kt | 21 °C | 101 kt | 12 h 06 min | 1:10 pm MDT (19:10 UTC) |
| 6,500 ft | 240° at 23 kt | +19 kt | 17 °C | 101 kt | 12 h 06 min | 1:10 pm MDT (19:10 UTC) |
| 8,500 ft | 240° at 21 kt | +17 kt | 13 °C | 103 kt | 11 h 52 min | 12:56 pm MDT (18:56 UTC) |
| 10,500 ft | 240° at 21 kt | +17 kt | 9 °C | 103 kt | 11 h 52 min | 12:56 pm MDT (18:56 UTC) |
| 12,500 ft | 240° at 21 kt | +18 kt | 4 °C | 102 kt | 11 h 59 min | 1:03 pm MDT (19:03 UTC) |
| 14,500 ft | 240° at 23 kt | +19 kt | 0 °C | 101 kt | 12 h 06 min | 1:10 pm MDT (19:10 UTC) |
| 16,500 ft | 240° at 24 kt | +21 kt | -4 °C | 99 kt | 12 h 21 min | 1:25 pm MDT (19:25 UTC) |
| 18,000 ft FL180 | 240° at 25 kt | +22 kt | -8 °C | 98 kt | 12 h 28 min | 1:32 pm MDT (19:32 UTC) |
| 24,000 ft FL240 | 240° at 31 kt | +25 kt | -20 °C | 95 kt | 12 h 52 min | 1:56 pm MDT (19:56 UTC) |
| 30,000 ft FL300 | 250° at 41 kt | +37 kt | -31 °C | 83 kt | 14 h 43 min | 3:47 pm MDT (21:47 UTC) |
| 34,000 ft FL340 | 260° at 49 kt | +48 kt | -38 °C | 72 kt | 16 h 58 min | 6:02 pm MDT (00:02 UTC) |
| 39,000 ft FL390 | 260° at 49 kt | +49 kt | -48 °C | 71 kt | 17 h 13 min | 6:17 pm MDT (00:17 UTC) |
Based on data from the 12th at 00:00 UTC; valid on the 12th at 06:00 UTC for use 02:00 to 09:00 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| LOU | used from 0 nm out; 28 nm from the line | 310/18 | 340/28 16° | 340/29 10° | 350/27 3° | 330/27 -7° | 340/39 -19° | 330/58 -33° | 330/67 -41° | 330/40 -49° |
| EVV | used from 50 nm out; 30 nm from the line | 280/15 | 290/12 17° | 310/16 10° | 320/13 5° | 310/22 -6° | 320/26 -18° | 320/38 -33° | 310/56 -41° | 320/55 -51° |
| STL | used from 149 nm out; 50 nm from the line | 250/24 | 250/24 16° | 260/23 9° | 270/16 6° | 260/25 -6° | 270/29 -19° | 290/34 -33° | 290/48 -41° | 290/54 -51° |
| COU | used from 248 nm out; 47 nm from the line | 230/31 | 230/30 15° | 260/16 11° | 270/14 6° | 260/24 -6° | 270/27 -18° | 270/37 -32° | 280/49 -41° | 290/56 -51° |
| MKC | used from 348 nm out; 58 nm from the line | 220/44 | 250/28 18° | 250/18 13° | 240/12 6° | 280/24 -6° | 240/34 -18° | 260/47 -30° | 260/51 -40° | 270/58 -50° |
| OMA | used from 497 nm out; 85 nm from the line | 220/47 | 240/33 19° | 250/18 11° | 230/17 6° | 260/29 -8° | 250/33 -19° | 250/51 -33° | 260/61 -40° | 270/62 -49° |
| GRI | used from 546 nm out; 56 nm from the line | 230/35 21° | 230/23 13° | 220/20 7° | 240/25 -8° | 240/37 -20° | 250/49 -33° | 260/57 -38° | 260/58 -47° | |
| GLD | used from 695 nm out; 72 nm from the line | 230/49 | 230/42 15° | 220/26 8° | 240/18 -7° | 230/27 -21° | 240/62 -30° | 240/61 -35° | 250/57 -47° | |
| BFF | used from 794 nm out; 80 nm from the line | 180/28 | 220/33 15° | 210/31 7° | 230/32 -9° | 220/41 -21° | 220/40 -33° | 240/47 -36° | 250/54 -46° | |
| DEN | used from 844 nm out; 52 nm from the line | 240/21 14° | 250/44 6° | 220/49 -8° | 220/49 -21° | 230/54 -30° | 240/57 -35° | 240/49 -45° | ||
| RKS | used from 993 nm out; 86 nm from the line | 200/41 | 220/44 1° | 220/35 -11° | 220/46 -24° | 210/53 -27° | 220/62 -35° | 230/61 -44° | ||
| SLC | used from 1142 nm out; 55 nm from the line | 200/5 | 230/8 2° | 220/20 -2° | 210/40 -12° | 190/53 -25° | 210/62 -30° | 220/69 -34° | 220/64 -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 |
|---|---|---|---|---|---|---|---|
| SDF Louisville, KY | departure | marginal VFR Weather: mist | calm | 5 mi | none | 500 ft | 2:56 am EDT (06:56 UTC) |
| AJG Mount Carmel, IL | 99 nm out, 2 nm east of the line | IFR Sky: scattered clouds at 200 feet Weather: mist | calm | 2.5 mi | none | 429 ft | 06:55 UTC |
| ALN Alton/St Louis, IL | 209 nm out, 9 nm south of the line, tower | VFR | from the south (190°) at 6 knots | 10+ mi | none | 543 ft | 06:55 UTC |
| MBY Moberly, MO | 318 nm out, 5 nm northwest of the line | VFR | from the south-southwest (200°) at 6 knots | 10+ mi | none | 866 ft | 06:55 UTC |
| STJ St Joseph, MO | 437 nm out, 2 nm southwest of the line, tower | VFR | from the south (190°) at 8 knots | 10+ mi | none | 826 ft | 06:53 UTC |
| HJH Hebron, NE | 566 nm out, 3 nm northeast of the line | VFR | from the south (190°) at 10 knots, gusting to 16 | 10+ mi | none | 1,468 ft | 06:55 UTC |
| CSB Cambridge, NE | 685 nm out, 5 nm southeast of the line | VFR | from the south (190°) at 11 knots, gusting to 16 | 10+ mi | none | 2,414 ft | 06:55 UTC |
| STK Sterling, CO | 824 nm out, 1 nm northwest of the line | VFR | from the south-southwest (200°) at 10 knots | 10+ mi | none | 4,037 ft | 06:55 UTC |
| FNL Fort Collins/Loveland, CO | 904 nm out, 14 nm south of the line, tower | VFR | from the south (170°) at 7 knots | 10+ mi | none | 5,020 ft | 06:56 UTC |
| SBS Steamboat Springs, CO | 993 nm out, 15 nm south of the line | VFR Sky: overcast at 7,000 feet | calm | 10+ mi | 7,000 ft | 6,882 ft | 06:55 UTC |
| HCR Heber, UT | 1202 nm out, 19 nm south of the line | VFR Sky: overcast at 4,000 feet | from the west-southwest (240°) at 3 knots | 10+ mi | 4,000 ft | 5,636 ft | 06:55 UTC |
| SLC Salt Lake City, UT | destination | VFR Sky: a few clouds at 4,300 feet, scattered clouds at 6,500 feet, a broken layer at 13,000 feet, overcast at 17,000 feet | from the east-southeast (120°) at 5 knots | 10+ mi | 13,000 ft | 4,230 ft | 12:54 am MDT (06:54 UTC) |
The highest airport on this list sits at 6,882 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, 12:56 pm MDT (18:56 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 12:00 am MDT (06:00 UTC): wind from the south at 9 knots, visibility more than 6 miles, scattered clouds at 4,000 feet, a broken layer at 8,000 feet
- 30% chance between Mon 3:00 am MDT (09:00 UTC) and 6:00 am MDT (12:00 UTC): wind variable at 10 knots, gusting to 25, light rain showers, a broken layer at 5,000 feet
- 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
- 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 SDF, the departure
- From Mon 2:00 am EDT (06:00 UTC): wind from the south at 3 knots, visibility more than 6 miles, clear skies
- At times between Mon 5:00 am EDT (09:00 UTC) and 9:00 am EDT (13:00 UTC): visibility ½ mile, fog, clear skies
- From Mon 10:00 am EDT (14:00 UTC): wind from the south-southwest at 6 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
- From Mon 8:00 pm EDT (00:00 UTC): wind from the south at 3 knots, visibility more than 6 miles, clear skies
Temporary flight restrictions on the line or within 25 nm of it
- 6/7634 CENTRALIA, MO, Monday, October 12, 2026 UTC 14 nm from the route, 308 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · today · ZKC
Daylight
Sunset at SDF 7:09 pm EDT (23:09 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: Louisville Muhammad Ali International, Salt Lake City International.