Spokane International to Mineta San Jose International GEG → SJC
645 nautical miles (743 statute miles) south on a straight line, true course 199°, about 185° magnetic at the departure end (variation 14E). At 120 knots that is 4 h at the quickest height in today's winds (24,000 ft, a 41-knot tailwind), arriving about 5:02 am PDT (12:02 UTC), after sunset at the destination. 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: 490 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 119 nm of the route.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the whole route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 129 to 238 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 GEG.
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 7 forecast points nearest it (GEG, LWS, RDM, LKV, RBL, SAC, SFO). 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 | 060° at 10 kt | −7 kt | -1 °C | 127 kt | 5 h 05 min | 6:07 am PDT (13:07 UTC) |
| 6,500 ft | 050° at 10 kt | −8 kt | 0 °C | 128 kt | 5 h 02 min | 6:04 am PDT (13:04 UTC) |
| 8,500 ft | 030° at 12 kt | −12 kt | -5 °C | 132 kt | 4 h 53 min | 5:55 am PDT (12:55 UTC) |
| 10,500 ft | 020° at 12 kt | −12 kt | -8 °C | 132 kt | 4 h 53 min | 5:55 am PDT (12:55 UTC) |
| 12,500 ft | 360° at 13 kt | −13 kt | -11 °C | 133 kt | 4 h 51 min | 5:53 am PDT (12:53 UTC) |
| 14,500 ft | 360° at 15 kt | −14 kt | -14 °C | 134 kt | 4 h 49 min | 5:51 am PDT (12:51 UTC) |
| 16,500 ft | 360° at 17 kt | −16 kt | -16 °C | 136 kt | 4 h 45 min | 5:47 am PDT (12:47 UTC) |
| 18,000 ft FL180 | 360° at 19 kt | −18 kt | -19 °C | 138 kt | 4 h 40 min | 5:42 am PDT (12:42 UTC) |
| 24,000 ft FL240 | 360° at 42 kt | −41 kt | -26 °C | 161 kt | 4 h | 5:02 am PDT (12:02 UTC) |
| 30,000 ft FL300 | 350° at 31 kt | −27 kt | -33 °C | 147 kt | 4 h 23 min | 5:25 am PDT (12:25 UTC) |
| 34,000 ft FL340 | 310° at 18 kt | −7 kt | -36 °C | 127 kt | 5 h 05 min | 6:07 am PDT (13:07 UTC) |
| 39,000 ft FL390 | 260° at 19 kt | +10 kt | -40 °C | 110 kt | 5 h 52 min | 6:54 am PDT (13:54 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; 46 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° |
| RDM | used from 149 nm out; 105 nm from the line | 040/17 -1° | 030/31 -8° | 010/29 -12° | 010/61 -19° | 360/95 -25° | 360/82 -36° | 360/40 -37° | 310/19 -40° | |
| LKV | used from 248 nm out; 78 nm from the line | 010/8 -8° | 350/13 -11° | 340/21 -21° | 360/60 -26° | 350/37 -32° | 310/26 -35° | 260/25 -39° | ||
| RBL | used from 447 nm out; 63 nm from the line | 020/16 | 360/6 5° | L/V -2° | 340/10 -8° | 360/59 -15° | 360/87 -23° | 360/68 -35° | 330/28 -37° | 260/26 -42° |
| SAC | used from 497 nm out; 52 nm from the line | 110/6 | L/V 4° | 010/11 -2° | 350/11 -7° | 340/24 -16° | 360/44 -23° | 330/24 -30° | 270/21 -35° | 230/23 -43° |
| SFO | used from 596 nm out; 29 nm from the line | 120/13 | 090/14 5° | 040/14 -1° | 350/17 -5° | 360/42 -14° | 360/64 -23° | 350/38 -32° | 300/19 -37° | 250/18 -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 |
|---|---|---|---|---|---|---|---|
| GEG Spokane, WA | departure | no report just now | 2,385 ft | ||||
| ALW Walla Walla, WA | 99 nm out, 3 nm northeast of the line, tower | no report just now | 1,194 ft | ||||
| GCD John Day, OR | 199 nm out, 6 nm southeast of the line | no report just now | 3,702 ft | ||||
| AAT Alturas, CA | 387 nm out, 10 nm west of the line | no report just now | 4,378 ft | ||||
| SVE Susanville, CA | 457 nm out, 10 nm east of the line | no report just now | 4,149 ft | ||||
| SAC Sacramento, CA | 576 nm out, 3 nm northeast of the line, tower | no report just now | 23 ft | ||||
| LVK Livermore, CA | 626 nm out, 1 nm northwest of the line, tower | no report just now | 399 ft | ||||
| SJC San Jose, CA | destination | no report just now | 62 ft |
The highest airport on this list sits at 4,378 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At SJC when you get there the forecast at the estimated arrival, 5:02 am PDT (12:02 UTC)
SJC has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 6/3475 BEALE AFB, CA, Sunday, March 8, 2026 through Sunday, November 1, 2026 Local on the route, 536 nm along the route · security · until 1 November · ZOA
Daylight
Sunset at GEG 6:06 pm PDT (01:06 UTC), at SJC 6:33 pm PDT (01:33 UTC) (civil twilight ends 6:59 pm PDT (01:59 UTC)). At 120 knots the arrival at SJC is before sunrise there (7:12 am PDT (14:12 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, Mineta San Jose International.