Spokane International to Phoenix Sky Harbor International GEG → PHX
888 nautical miles (1,021 statute miles) south on a straight line, true course 162°, about 148° magnetic at the departure end (variation 14E). At 120 knots that is 8 h 04 min at the quickest height in today's winds (7,500 ft, a 10-knot headwind), arriving about 7:11 am MST (14:11 UTC). Right now GEG is VFR, wind from the northeast (040°) at 10 knots; PHX is VFR, wind from the east (090°) at 6 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: 2,504 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 ZULU 2C: moderate icing up to 23,000 ft. Over the first 199 nm of the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 50 to 868 nm out.
- 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 route from 140 to 199 nm out.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 150 to 369 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 229 to 718 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 459 to 818 nm out.
- 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 698 to 738 nm out.
- AIRMET TANGO 2W: moderate turbulence above 18,000 ft from 35,000 ft to 45,000 ft. Over the last 170 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 GEG.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- B737 at 14,000 ft, 5 nm east, 10:15 pm PDT (05:15 UTC): moderate turbulence, remarks: during the descent through clouds. At the destination end, 5 nm east of the line.
as filed, and in English
PHX UA /OV PXR339030/TM 0515/FL140/TP B737/TB OCNL MOD/RM DURD THROUGH CLOUDS
- Report
- a routine report filed through PHX
- Where
- 30 nm north (339°) of PXR
- Time
- 05:15 UTC
- Height
- at 14,000 ft
- Aircraft
- B737
- Turbulence
- occasional moderate
- Remarks
- during the descent through clouds
- B737 at 37,000 ft, 43 nm southwest, 8:20 pm PDT (03:20 UTC): scattered clouds, -41 °C, wind 220° at 89 knots, remarks: produced by skypath. At the destination end, 43 nm southwest of the line.
as filed, and in English
GYR UA /OV GBN112009 /TM 0320 /FL370 /TP B737 /SK FEW-SCT /TA M41 /WV 22089KT /RM PRODUCED BY SKYPATH
- Report
- a routine report filed through GYR
- Where
- 9 nm east (112°) of GBN
- Time
- 03:20 UTC
- Height
- at 37,000 ft
- Aircraft
- B737
- Sky
- few-sct
- Temperature
- −41 °C
- Wind
- from 220° at 89 knots
- Remarks
- produced by skypath
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 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 8 forecast points nearest it (GEG, LWS, BOI, BAM, ELY, BCE, PRC, 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 |
|---|---|---|---|---|---|---|
| 7,500 ft | 210° at 14 kt | +10 kt | 1 °C | 110 kt | 8 h 04 min | 7:11 am MST (14:11 UTC) |
| 9,500 ft | 210° at 14 kt | +11 kt | -1 °C | 109 kt | 8 h 09 min | 7:16 am MST (14:16 UTC) |
| 11,500 ft | 210° at 18 kt | +13 kt | -4 °C | 107 kt | 8 h 18 min | 7:25 am MST (14:25 UTC) |
| 13,500 ft | 210° at 26 kt | +19 kt | -7 °C | 101 kt | 8 h 48 min | 7:55 am MST (14:55 UTC) |
| 15,500 ft | 210° at 35 kt | +25 kt | -11 °C | 95 kt | 9 h 21 min | 8:28 am MST (15:28 UTC) |
| 17,500 ft | 210° at 44 kt | +32 kt | -15 °C | 88 kt | 10 h 05 min | 9:12 am MST (16:12 UTC) |
| 18,000 ft FL180 | 210° at 47 kt | +33 kt | -16 °C | 87 kt | 10 h 12 min | 9:19 am MST (16:19 UTC) |
| 24,000 ft FL240 | 210° at 56 kt | +39 kt | -26 °C | 81 kt | 10 h 58 min | 10:05 am MST (17:05 UTC) |
| 30,000 ft FL300 | 210° at 60 kt | +38 kt | -30 °C | 82 kt | 10 h 50 min | 9:57 am MST (16:57 UTC) |
| 34,000 ft FL340 | 220° at 61 kt | +33 kt | -34 °C | 87 kt | 10 h 12 min | 9:19 am MST (16:19 UTC) |
| 39,000 ft FL390 | 220° at 52 kt | +26 kt | -42 °C | 94 kt | 9 h 27 min | 8:34 am MST (15:34 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| GEG | used from 0 nm out; 25 nm from the line | 080/16 -2° | 050/17 -7° | 080/9 -10° | 190/33 -21° | 180/31 -32° | L/V -35° | L/V -37° | 270/8 -40° | |
| LWS | used from 50 nm out; 4 nm from the line | 070/10 | 080/12 -2° | 030/12 -6° | 080/7 -10° | 170/34 -21° | 160/46 -32° | 200/33 -35° | 220/22 -35° | 230/18 -38° |
| BOI | used from 150 nm out; 77 nm from the line | 300/7 2° | 280/5 -4° | 210/16 -9° | 210/60 -20° | 210/75 -29° | 210/63 -32° | 220/64 -32° | 220/54 -39° | |
| BAM | used from 349 nm out; 110 nm from the line | 310/7 0° | 270/19 -7° | 200/38 -17° | 190/49 -28° | 220/69 -29° | 220/63 -33° | 230/48 -41° | ||
| ELY | used from 399 nm out; 95 nm from the line | 200/39 3° | 210/27 -2° | 210/45 -15° | 220/56 -24° | 210/60 -28° | 210/63 -34° | 220/61 -43° | ||
| BCE | used from 598 nm out; 61 nm from the line | 220/27 -1° | 210/40 -13° | 220/54 -21° | 220/64 -30° | 220/64 -34° | 220/52 -44° | |||
| PRC | used from 698 nm out; 89 nm from the line | 210/25 5° | 200/30 1° | 220/55 -10° | 220/61 -21° | 220/84 -28° | 230/90 -34° | 230/73 -45° | ||
| PHX | used from 848 nm out; 20 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 |
|---|---|---|---|---|---|---|---|
| GEG Spokane, WA | departure | VFR Sky: a few clouds at 8,000 feet, scattered clouds at 12,000 feet | from the northeast (040°) at 10 knots | 10+ mi | none | 2,385 ft | 10:53 pm PDT (05:53 UTC) |
| LWS Lewiston, ID | 80 nm out, 4 nm west of the line, tower | VFR Sky: overcast at 6,000 feet | from the northeast (040°) at 3 knots | 10+ mi | 6,000 ft | 1,442 ft | 05:56 UTC |
| MYL Mc Call, ID | 170 nm out, 8 nm east of the line | VFR Sky: a few clouds at 2,800 feet, overcast at 4,900 feet | calm | 10+ mi | 4,900 ft | 5,024 ft | 05:51 UTC |
| BOI Boise, ID | 249 nm out, 22 nm west of the line, tower | VFR Sky: overcast at 9,000 feet | from the west (270°) at 7 knots | 10+ mi | 9,000 ft | 2,871 ft | 05:53 UTC |
| LWL Wells, NV | 409 nm out, 10 nm west of the line | no report just now | 5,769 ft | ||||
| AZC Colorado City, AZ | 668 nm out, 8 nm east of the line | marginal VFR Sky: a broken layer at 3,000 feet, overcast at 3,600 feet | from the east-southeast (120°) at 3 knots | 10+ mi | 3,000 ft | 4,873 ft | 05:55 UTC |
| CMR Williams, AZ | 778 nm out, 20 nm east of the line | VFR Sky: scattered clouds at 1,900 feet, scattered clouds at 3,800 feet | from the southwest (220°) at 15 knots, gusting to 24 | 10+ mi | none | 6,690 ft | 05:55 UTC |
| DVT Phoenix, AZ | 868 nm out, 4 nm south of the line, tower | VFR Sky: a few clouds at 5,000 feet, scattered clouds at 6,000 feet, a broken layer at 8,500 feet | from the east (080°) at 3 knots | 10+ mi | 8,500 ft | 1,478 ft | 05:53 UTC |
| PHX Phoenix, AZ | destination | VFR Sky: a few clouds at 4,800 feet, scattered clouds at 7,000 feet, a broken layer at 9,500 feet | from the east (090°) at 6 knots | 10+ mi | 9,500 ft | 1,134 ft | 10:51 pm MST (05:51 UTC) |
The highest airport on this list sits at 6,690 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, 7:11 am MST (14:11 UTC)
Wind from the east-southeast at 7 knots, visibility more than 6 miles, a few clouds at 4,000 feet, scattered clouds at 7,000 feet VFR
The whole forecast for PHX
- From Sun 11:00 pm MST (06:00 UTC): wind from the east-southeast at 7 knots, visibility more than 6 miles, a few clouds at 4,000 feet, scattered clouds at 7,000 feet
- From Mon 9:00 am MST (16:00 UTC): wind from the south at 11 knots, gusting to 20, visibility more than 6 miles, scattered clouds at 4,000 feet, a broken layer at 7,000 feet
- From Mon 1:00 pm MST (20:00 UTC): wind from the southwest at 14 knots, gusting to 23, visibility more than 6 miles, scattered clouds at 5,000 feet, a broken layer at 7,000 feet
- From Mon 6:00 pm MST (01:00 UTC): wind from the west at 9 knots, visibility more than 6 miles, scattered clouds at 5,000 feet, a broken layer at 7,000 feet
- From Mon 10:00 pm MST (05:00 UTC): wind from the east-southeast at 7 knots, visibility more than 6 miles, showers nearby, scattered clouds at 5,000 feet, a broken layer at 7,000 feet
The forecast for GEG, the departure
- From Sun 11:00 pm PDT (06:00 UTC): wind from the northeast at 7 knots, visibility more than 6 miles, scattered clouds at 7,000 feet
- From Mon 1:00 pm PDT (20:00 UTC): wind light and variable, visibility more than 6 miles, a few clouds at 10,000 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 GEG 6:08 pm PDT (01:08 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: Spokane International, Phoenix Sky Harbor International.
