Greenville Spartanburg International to Harry Reid International GSP → LAS
1,604 nautical miles (1,846 statute miles) west on a straight line, true course 282°, about 288° magnetic at the departure end (variation 6W). At 120 knots that is 14 h 43 min at the quickest height in today's winds (4,500 ft, a 11-knot headwind), arriving about 9:27 am PDT (16:27 UTC). Right now GSP is VFR, wind from the west-southwest (240°) at 8 knots; LAS is VFR, wind from the south (190°) at 12 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 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 1W: thunderstorms (a convective SIGMET) up to 34,000 ft, moving from the southwest at 40 knots, until 10:55 pm EDT (02:55 UTC). Over the route from 1106 to 1305 nm out.
as issued
WSUS33 KKCI 120055 MKCW WST 120055 CONVECTIVE SIGMET 1W VALID UNTIL 0255Z CO NM WY AZ UT FROM 40NNW CHE-40WNW TBE-60WNW CME-40N SJN-40ESE MTU-40NNW CHE AREA SEV TS MOV FROM 23040KT. TOPS TO FL340. WIND GUSTS TO 60KT POSS.
- SIGMET 4W: thunderstorms (a convective SIGMET) up to 28,000 ft, moving from the southwest at 20 knots, until 10:55 pm EDT (02:55 UTC). Over the route from 1385 to 1454 nm out.
as issued
WSUS33 KKCI 120055 MKCW WST 120055 CONVECTIVE SIGMET 4W VALID UNTIL 0255Z AZ FROM 60NE TBC-30S INW-100ESE BZA-70SE EED-50NW TBC-60NE TBC DMSHG AREA EMBD TS MOV FROM 21020KT. TOPS TO FL280.
- AIRMET TANGO 5W: moderate turbulence below 18,000 ft (due to mountain wave) up to 8,000 ft. Over the first 70 nm of the route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 40 to 139 nm out.
- AIRMET SIERRA 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Near the route, 130 nm along 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 827 to 966 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the last 568 nm of the route.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 1086 to 1564 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1116 to 1285 nm out.
- 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). Near the route, 1166 nm along the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1355 to 1594 nm out.
- AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the last 209 nm of the route.
- AIRMET SIERRA 2E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the route from 1445 to 1564 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 GSP.
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 15 forecast points nearest it (GSP, TYS, BNA, MEM, LIT, SGF, TUL, ICT, GAG, AMA, TCC, ALS, FMN, BCE, LAS). 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 | 220° at 16 kt | +11 kt | 16 °C | 109 kt | 14 h 43 min | 9:27 am PDT (16:27 UTC) |
| 6,500 ft | 240° at 15 kt | +13 kt | 14 °C | 107 kt | 14 h 59 min | 9:43 am PDT (16:43 UTC) |
| 8,500 ft | 250° at 18 kt | +19 kt | 12 °C | 101 kt | 15 h 53 min | 10:37 am PDT (17:37 UTC) |
| 10,500 ft | 250° at 21 kt | +21 kt | 7 °C | 99 kt | 16 h 12 min | 10:56 am PDT (17:56 UTC) |
| 12,500 ft | 250° at 22 kt | +22 kt | 4 °C | 98 kt | 16 h 22 min | 11:06 am PDT (18:06 UTC) |
| 14,500 ft | 250° at 23 kt | +23 kt | 0 °C | 97 kt | 16 h 32 min | 11:16 am PDT (18:16 UTC) |
| 16,500 ft | 250° at 24 kt | +24 kt | -4 °C | 96 kt | 16 h 42 min | 11:26 am PDT (18:26 UTC) |
| 18,000 ft FL180 | 250° at 25 kt | +25 kt | -8 °C | 95 kt | 16 h 53 min | 11:37 am PDT (18:37 UTC) |
| 24,000 ft FL240 | 250° at 29 kt | +29 kt | -19 °C | 91 kt | 17 h 38 min | 12:22 pm PDT (19:22 UTC) |
| 30,000 ft FL300 | 250° at 43 kt | +43 kt | -30 °C | 77 kt | 20 h 50 min | 3:34 pm PDT (22:34 UTC) |
| 34,000 ft FL340 | 260° at 43 kt | +44 kt | -38 °C | 76 kt | 21 h 06 min | 3:50 pm PDT (22:50 UTC) |
| 39,000 ft FL390 | 260° at 41 kt | +42 kt | -48 °C | 78 kt | 20 h 34 min | 3:18 pm PDT (22:18 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| GSP | used from 0 nm out; 25 nm from the line | 300/22 | 310/22 11° | 300/22 7° | 290/28 5° | 270/36 -5° | 250/42 -18° | 230/54 -31° | 230/59 -40° | 230/65 -50° |
| TYS | used from 50 nm out; 42 nm from the line | 290/19 | 310/22 11° | 330/25 7° | 330/34 3° | 320/37 -7° | 300/37 -18° | 300/37 -34° | 280/29 -39° | 270/29 -48° |
| BNA | used from 149 nm out; 62 nm from the line | 280/13 | 340/34 16° | 330/38 10° | 330/44 5° | 330/39 -8° | 330/38 -19° | 320/49 -34° | 330/53 -40° | 330/35 -47° |
| MEM | used from 299 nm out; 78 nm from the line | 240/9 | 280/14 17° | 280/20 12° | 290/25 5° | 320/25 -6° | 330/31 -18° | 320/52 -32° | 330/58 -41° | 320/42 -50° |
| LIT | used from 448 nm out; 90 nm from the line | 220/12 | 250/12 17° | 250/18 12° | 260/22 6° | 310/14 -5° | 310/25 -17° | 310/40 -31° | 310/38 -41° | 310/46 -52° |
| SGF | used from 498 nm out; 65 nm from the line | 210/21 | 210/21 16° | 240/28 12° | 260/24 7° | 280/21 -6° | 280/26 -18° | 290/38 -31° | 290/37 -41° | 300/49 -52° |
| TUL | used from 598 nm out; 52 nm from the line | 200/27 | 210/28 15° | 240/24 13° | 250/19 8° | 250/28 -6° | 260/25 -16° | 270/34 -30° | 280/41 -39° | 280/41 -52° |
| ICT | used from 747 nm out; 67 nm from the line | 190/34 | 210/34 18° | 240/28 13° | 260/23 7° | 250/23 -6° | 240/29 -17° | 260/40 -30° | 260/47 -40° | 270/42 -51° |
| GAG | used from 797 nm out; 44 nm from the line | 190/34 19° | 240/27 14° | 240/26 8° | 240/24 -6° | 240/29 -16° | 250/50 -28° | 250/50 -39° | 260/46 -50° | |
| AMA | used from 946 nm out; 91 nm from the line | 190/28 | 220/26 14° | 230/27 7° | 250/24 -6° | 250/32 -16° | 240/51 -28° | 250/52 -38° | 250/51 -50° | |
| TCC | used from 996 nm out; 95 nm from the line | 200/26 | 200/28 14° | 220/25 7° | 230/28 -7° | 240/41 -19° | 240/62 -28° | 250/61 -37° | 250/49 -49° | |
| ALS | used from 1046 nm out; 94 nm from the line | 210/32 5° | 230/48 -8° | 230/49 -20° | 230/78 -30° | 240/74 -36° | 240/61 -47° | |||
| FMN | used from 1195 nm out; 48 nm from the line | 220/25 13° | 220/28 4° | 210/51 -9° | 220/59 -21° | 230/78 -30° | 230/77 -36° | 230/66 -46° | ||
| BCE | used from 1395 nm out; 86 nm from the line | 210/47 0° | 200/50 -12° | 220/31 -23° | 220/56 -26° | 220/58 -35° | 230/58 -45° | |||
| LAS | used from 1494 nm out; 85 nm from the line | 200/25 11° | 230/22 5° | 240/25 -1° | 220/37 -12° | 220/44 -21° | 210/52 -27° | 210/60 -34° | 220/58 -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 |
|---|---|---|---|---|---|---|---|
| GSP Greer, SC | departure | VFR | from the west-southwest (240°) at 8 knots | 10+ mi | none | 963 ft | 8:53 pm EDT (00:53 UTC) |
| CHA Chattanooga, TN | 149 nm out, 21 nm south of the line, tower | marginal VFR Sky: a broken layer at 2,200 feet, a broken layer at 2,800 feet, overcast at 3,900 feet | from the south-southwest (210°) at 4 knots | 10+ mi | 2,200 ft | 682 ft | 00:53 UTC |
| SYI Shelbyville, TN | 209 nm out, 2 nm west of the line | VFR | from the east-southeast (120°) at 3 knots | 10+ mi | none | 799 ft | 01:35 UTC |
| MKL Jackson, TN | 329 nm out, 17 nm south of the line, tower | VFR | from the south-southwest (210°) at 3 knots | 10+ mi | none | 434 ft | 00:53 UTC |
| ROG Rogers, AR | 588 nm out, 1 nm southeast of the line, tower | VFR | from the south (180°) at 5 knots | 10+ mi | none | 1,358 ft | 00:58 UTC |
| WDG Enid, OK | 767 nm out, 14 nm south of the line, tower | VFR Sky: scattered clouds at 12,000 feet | from the south (170°) at 11 knots | 10+ mi | none | 1,167 ft | 00:50 UTC |
| GUY Guymon, OK | 946 nm out, 3 nm east of the line | VFR | from the south (180°) at 14 knots, gusting to 22 | 10+ mi | none | 3,125 ft | 00:53 UTC |
| RTN Raton, NM | 1086 nm out, 3 nm northwest of the line | VFR Sky: a broken layer at 9,000 feet | from the south-southwest (210°) at 12 knots | 10+ mi | 9,000 ft | 6,352 ft | 00:53 UTC |
| FMN Farmington, NM | 1265 nm out, 9 nm north of the line, tower | VFR | from the west (270°) at 9 knots | 10+ mi | none | 5,506 ft | 00:53 UTC |
| GCN Grand Canyon, AZ | 1464 nm out, 24 nm south of the line, tower | IFR Sky: a broken layer at 500 feet, overcast at 1,000 feet Weather: mist | from the southwest (230°) at 17 knots, gusting to 25 | 5 mi | 500 ft | 6,608 ft | 00:54 UTC |
| LAS Las Vegas, NV | destination | VFR Sky: a few clouds at 7,500 feet, scattered clouds at 10,000 feet, a broken layer at 15,000 feet | from the south (190°) at 12 knots | 10+ mi | 15,000 ft | 2,183 ft | 5:56 pm PDT (00:56 UTC) |
The highest airport on this list sits at 6,608 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At LAS when you get there the forecast at the estimated arrival, 9:27 am PDT (16:27 UTC)
Wind from the south at 8 knots, visibility more than 6 miles, showers nearby, scattered clouds at 7,000 feet, a broken layer at 10,000 feet VFR
The whole forecast for LAS
- From Sun 5:00 pm PDT (00:00 UTC): wind from the south-southwest at 14 knots, gusting to 24, visibility more than 6 miles, showers nearby, a few clouds at 6,000 feet, scattered clouds at 8,000 feet and more above
- From Sun 8:00 pm PDT (03:00 UTC): wind from the south at 12 knots, gusting to 20, visibility more than 6 miles, a few clouds at 8,000 feet, a broken layer at 10,000 feet
- From Mon 1:00 am PDT (08:00 UTC): wind from the south at 7 knots, visibility more than 6 miles, a few clouds at 8,000 feet, a broken layer at 10,000 feet
- From Mon 8:00 am PDT (15:00 UTC): wind from the south at 8 knots, visibility more than 6 miles, showers nearby, scattered clouds at 7,000 feet, a broken layer at 10,000 feet
- From Mon 12:00 pm PDT (19:00 UTC): wind from the south-southwest at 15 knots, gusting to 25, visibility more than 6 miles, showers nearby, scattered clouds at 7,000 feet, a broken layer at 12,000 feet
- From Mon 8:00 pm PDT (03:00 UTC): wind from the southwest at 10 knots, visibility more than 6 miles, a few clouds at 8,000 feet, scattered clouds at 10,000 feet
The forecast for GSP, the departure
- From Sun 8:00 pm EDT (00:00 UTC): wind from the west-southwest at 9 knots, visibility more than 6 miles, scattered clouds at 7,000 feet
- From Mon 2:00 am EDT (06:00 UTC): wind from the west-southwest at 5 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
- From Mon 12:00 pm EDT (16:00 UTC): wind from the north-northwest at 9 knots, visibility more than 6 miles, a few clouds at 25,000 feet
Temporary flight restrictions on the line or within 25 nm of it
- 6/8890 LAS VEGAS, NV, Tuesday, October 13, 2026 Local on the route, at the destination end · a VIP movement · starts tomorrow · ZLA
- 6/8808 Las Vegas, NV, Tuesday, October 13, 2026 Local on the route, at the destination end · security · starts tomorrow · ZLA
Daylight
Sunset at GSP 6:58 pm EDT (22:58 UTC), at LAS 6:08 pm PDT (01:08 UTC) (civil twilight ends 6:34 pm PDT (01:34 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: Greenville Spartanburg International, Harry Reid International.
