Greenville Spartanburg International to Phoenix Sky Harbor International GSP → PHX
1,477 nautical miles (1,700 statute miles) west on a straight line, true course 275°, about 281° magnetic at the departure end (variation 6W). At 120 knots that is 14 h 12 min at the quickest height in today's winds (4,500 ft, a 16-knot headwind), arriving about 10:51 am MST (17:51 UTC). 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 3C: thunderstorms (a convective SIGMET) up to 30,000 ft, moving from the southwest at 30 knots, until 12:55 am EDT (04:55 UTC). Over the route from 1098 to 1158 nm out.
as issued
WSUS32 KKCI 120255 MKCC WST 120255 CONVECTIVE SIGMET 3C VALID UNTIL 0455Z TX NM FROM 50SE CIM-70WNW MRF-30W ELP-10W FTI-50SE CIM AREA TS MOV FROM 22030KT. TOPS TO FL300.
- AIRMET TANGO 5W: moderate turbulence below 18,000 ft (due to mountain wave) up to 10,000 ft. Over the route from 20 to 40 nm out.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 60 to 140 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). Over the route from 130 to 220 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 1108 to 1357 nm out.
- AIRMET TANGO 2W: moderate turbulence above 18,000 ft from 35,000 ft to 45,000 ft. Over the route from 1148 to 1437 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1437 to 1447 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 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 15 forecast points nearest it (GSP, TYS, HSV, MEM, LIT, FSM, TUL, OKC, SPS, GAG, AMA, TCC, ROW, ABQ, PHX). 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 19 kt | +16 kt | 19 °C | 104 kt | 14 h 12 min | 10:51 am MST (17:51 UTC) |
| 6,500 ft | 240° at 18 kt | +17 kt | 14 °C | 103 kt | 14 h 20 min | 10:59 am MST (17:59 UTC) |
| 8,500 ft | 250° at 18 kt | +18 kt | 12 °C | 102 kt | 14 h 29 min | 11:08 am MST (18:08 UTC) |
| 10,500 ft | 250° at 17 kt | +18 kt | 9 °C | 102 kt | 14 h 29 min | 11:08 am MST (18:08 UTC) |
| 12,500 ft | 250° at 17 kt | +17 kt | 5 °C | 103 kt | 14 h 20 min | 10:59 am MST (17:59 UTC) |
| 14,500 ft | 250° at 19 kt | +19 kt | 1 °C | 101 kt | 14 h 37 min | 11:16 am MST (18:16 UTC) |
| 16,500 ft | 250° at 21 kt | +21 kt | -3 °C | 99 kt | 14 h 55 min | 11:34 am MST (18:34 UTC) |
| 18,000 ft FL180 | 250° at 23 kt | +23 kt | -6 °C | 97 kt | 15 h 14 min | 11:53 am MST (18:53 UTC) |
| 24,000 ft FL240 | 250° at 32 kt | +33 kt | -18 °C | 87 kt | 16 h 59 min | 1:38 pm MST (20:38 UTC) |
| 30,000 ft FL300 | 260° at 47 kt | +49 kt | -29 °C | 71 kt | 20 h 48 min | 5:27 pm MST (00:27 UTC) |
| 34,000 ft FL340 | 270° at 48 kt | +51 kt | -38 °C | 69 kt | 21 h 24 min | 6:03 pm MST (01:03 UTC) |
| 39,000 ft FL390 | 270° at 40 kt | +42 kt | -49 °C | 78 kt | 18 h 56 min | 3:35 pm MST (22:35 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| GSP | used from 0 nm out; 25 nm from the line | 320/22 | 340/19 13° | 320/18 8° | 310/24 5° | 300/34 -7° | 300/36 -18° | 290/30 -33° | 300/32 -39° | 320/42 -49° |
| TYS | used from 50 nm out; 50 nm from the line | 320/20 | 340/18 11° | 340/32 9° | 340/36 4° | 330/37 -7° | 330/38 -19° | 330/50 -34° | 330/53 -38° | 330/44 -48° |
| HSV | used from 150 nm out; 57 nm from the line | 310/20 | 330/20 16° | 320/27 11° | 340/23 5° | 320/23 -7° | 340/30 -17° | 320/50 -33° | 330/61 -41° | 340/41 -50° |
| MEM | used from 299 nm out; 58 nm from the line | 230/19 | 260/16 15° | 270/17 12° | 300/13 6° | 300/15 -5° | 300/26 -18° | 300/34 -32° | 300/41 -40° | 310/46 -52° |
| LIT | used from 449 nm out; 35 nm from the line | 220/21 | 230/17 16° | 250/24 12° | 260/15 7° | 260/13 -5° | 280/25 -16° | 290/35 -30° | 300/42 -40° | 300/40 -52° |
| FSM | used from 549 nm out; 24 nm from the line | 210/27 | 250/23 16° | 250/20 13° | 240/17 8° | 250/18 -6° | 260/31 -16° | 280/42 -30° | 280/44 -40° | 290/38 -51° |
| TUL | used from 649 nm out; 64 nm from the line | 210/37 | 240/29 17° | 260/15 14° | 260/11 7° | 240/22 -6° | 250/29 -16° | 270/45 -29° | 270/47 -40° | 280/44 -50° |
| OKC | used from 699 nm out; 37 nm from the line | 200/44 | 230/32 18° | 240/13 15° | 240/10 9° | 240/20 -5° | 250/27 -16° | 260/47 -28° | 270/48 -39° | 270/45 -50° |
| SPS | used from 799 nm out; 64 nm from the line | 200/39 | 220/28 17° | 230/27 12° | 240/15 9° | 250/15 -4° | 250/24 -15° | 260/45 -28° | 270/43 -39° | 280/45 -51° |
| GAG | used from 848 nm out; 84 nm from the line | 220/40 19° | 230/28 14° | 240/23 8° | 230/21 -6° | 240/31 -19° | 250/66 -29° | 260/58 -38° | 260/47 -49° | |
| AMA | used from 898 nm out; 42 nm from the line | 210/38 | 230/29 14° | 240/29 7° | 220/27 -5° | 240/37 -18° | 240/66 -28° | 250/59 -37° | 260/47 -49° | |
| TCC | used from 998 nm out; 43 nm from the line | 210/42 | 230/33 14° | 230/32 6° | 220/35 -6° | 230/49 -19° | 240/72 -27° | 250/62 -36° | 250/52 -48° | |
| ROW | used from 1098 nm out; 73 nm from the line | 190/33 | 210/27 14° | 220/28 6° | 230/36 -6° | 230/56 -15° | 230/63 -27° | 250/59 -37° | 260/57 -49° | |
| ABQ | used from 1148 nm out; 52 nm from the line | 220/27 11° | 210/35 5° | 220/46 -9° | 230/62 -20° | 240/78 -25° | 240/80 -35° | 240/56 -47° | ||
| PHX | used from 1347 nm out; 105 nm from the line | 150/5 | 200/21 12° | 200/27 6° | 200/35 3° | 220/58 -8° | 220/69 -19° | 220/87 -26° | 230/93 -35° | 230/79 -47° |
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 | no report just now | 963 ft | ||||
| FGU Collegedale, TN | 140 nm out, 2 nm southeast of the line | no report just now | 860 ft | ||||
| CHA Chattanooga, TN | 150 nm out, 4 nm southeast of the line, tower | no report just now | 682 ft | ||||
| NQA Millington, TN | 379 nm out, 9 nm north of the line, tower | no report just now | 322 ft | ||||
| SRC Searcy, AR | 469 nm out, 2 nm southeast of the line | no report just now | 264 ft | ||||
| FSM Fort Smith, AR | 599 nm out, 9 nm north of the line, tower | no report just now | 469 ft | ||||
| OUN Norman, OK | 749 nm out, 11 nm north of the line, tower | no report just now | 1,181 ft | ||||
| HRX Hereford, TX | 988 nm out, 8 nm north of the line | no report just now | 3,787 ft | ||||
| FSU Fort Sumner, NM | 1088 nm out, 5 nm southeast of the line | no report just now | 4,164 ft | ||||
| ONM Socorro, NM | 1218 nm out, 12 nm south of the line | no report just now | 4,875 ft | ||||
| IWA Phoenix, AZ | 1457 nm out, 12 nm south of the line, tower | no report just now | 1,384 ft | ||||
| PHX Phoenix, AZ | destination | no report just now | 1,134 ft |
The highest airport on this list sits at 4,875 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At PHX when you get there the forecast at the estimated arrival, 10:51 am MST (17:51 UTC)
PHX has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 6/8722 ALAMOGORDO, NM, Tuesday, October 13, 2026 Local 7 nm from the route, 1178 nm along the route · security · starts tomorrow · ZAB
Daylight
Sunset at GSP 6:58 pm EDT (22:58 UTC), at PHX 5:58 pm MST (00:58 UTC) (civil twilight ends 6:23 pm MST (01:23 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, Phoenix Sky Harbor International.