Seattle-Tacoma International to Palm Springs International SEA → PSP
859 nautical miles (988 statute miles) south on a straight line, true course 160°, about 144° magnetic at the departure end (variation 16E). At 120 knots that is 6 h 11 min at the quickest height in today's winds (24,000 ft, a 19-knot tailwind), arriving about 6:36 am PDT (13:36 UTC), after sunset at the destination. Right now SEA is VFR, wind from the east-southeast (120°) at 7 knots; PSP is VFR, wind calm. 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: 3,361 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 W16W: thunderstorms (a convective SIGMET) up to 27,000 ft, moving from the southwest at 20 knots, until 1:55 am PDT (08:55 UTC). Near the route, 579 nm along the route.
as issued
WSUS33 KKCI 120655 MKCW WST 120655 CONVECTIVE SIGMET 16W VALID UNTIL 0855Z UT NV FROM 50NW BVL-20NE BVL-40SE OAL-20N OAL-50NW BVL AREA TS MOV FROM 24020KT. TOPS TO FL270.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the first 429 nm of the route.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 200 to 250 nm out.
- AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 15,000 ft. Over the last 190 nm of the route.
- AIRMET TANGO 3W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Over the route from 699 to 699 nm out.
- AIRMET TANGO 2W: moderate turbulence above 18,000 ft from 35,000 ft to 45,000 ft. Over the last 10 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 SEA.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- PC12 at 17,000 ft, 12 nm east, 9:52 pm PDT (04:52 UTC): moderate turbulence, moderate rime icing, -15 °C, remarks: entered by zoa fdcs. 599 nm along the route, 12 nm east of the line.
as filed, and in English
TPH UA /OV OAL/TM 0452/FL 170/TP PC12/TA M15/TB MOD/IC MOD RIME/RM ENTERED BY ZOA FDCS AWC-WEB
- Report
- a routine report filed through TPH
- Where
- over OAL
- Time
- 04:52 UTC
- Height
- at 17,000 ft
- Aircraft
- PC12
- Temperature
- −15 °C
- Turbulence
- moderate
- Icing
- moderate rime
- Remarks
- entered by zoa fdcs
- B38M at 3,000 ft, 44 nm west, 10:47 pm PDT (05:47 UTC): a broken layer from 2,900 ft to 8,000 ft, remarks: BASE030. At the destination end, 44 nm west of the line.
as filed, and in English
ONT UA /OV KONT080005/TM 0547/FL030/TP B38M/SK BKN029-TOP080/RM BASE030
- Report
- a routine report filed through ONT
- Where
- 5 nm east (080°) of KONT
- Time
- 05:47 UTC
- Height
- at 3,000 ft
- Aircraft
- B38M
- Sky
- a broken layer from 2,900 ft, tops 8,000 ft
- Remarks
- BASE030
- A321 at 3,300 ft, 41 nm west, 9:59 pm PDT (04:59 UTC): a broken layer above 3,300 ft, remarks: during the descent. At the destination end, 41 nm west of the line.
as filed, and in English
ONT UA /OV ONT078008/TM 0459/FL033/TP A321/SK BKN033-TOPUNKN/RM DURD
- Report
- a routine report filed through ONT
- Where
- 8 nm east (078°) of ONT
- Time
- 04:59 UTC
- Height
- at 3,300 ft
- Aircraft
- A321
- Sky
- a broken layer from 3,300 ft, tops unknown
- Remarks
- during the descent
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 9 forecast points nearest it (SEA, YKM, PDX, RDM, LKV, RNO, BIH, WJF, ONT). A plus sign is a headwind, a minus sign a tailwind.
| Height | Average wind | Head- or tailwind | Temperature | Ground speed | Time en route | Arrival |
|---|---|---|---|---|---|---|
| 5,500 ft | 090° at 2 kt | +1 kt | 2 °C | 119 kt | 7 h 13 min | 7:38 am PDT (14:38 UTC) |
| 7,500 ft | 360° at 3 kt | −2 kt | -2 °C | 122 kt | 7 h 02 min | 7:27 am PDT (14:27 UTC) |
| 9,500 ft | 330° at 3 kt | −3 kt | -4 °C | 123 kt | 6 h 59 min | 7:24 am PDT (14:24 UTC) |
| 11,500 ft | 280° at 2 kt | −1 kt | -7 °C | 121 kt | 7 h 06 min | 7:31 am PDT (14:31 UTC) |
| 13,500 ft | 290° at 4 kt | −2 kt | -10 °C | 122 kt | 7 h 02 min | 7:27 am PDT (14:27 UTC) |
| 15,500 ft | 300° at 5 kt | −4 kt | -14 °C | 124 kt | 6 h 56 min | 7:21 am PDT (14:21 UTC) |
| 17,500 ft | 310° at 7 kt | −6 kt | -16 °C | 126 kt | 6 h 49 min | 7:14 am PDT (14:14 UTC) |
| 18,000 ft FL180 | 310° at 8 kt | −6 kt | -17 °C | 126 kt | 6 h 49 min | 7:14 am PDT (14:14 UTC) |
| 24,000 ft FL240 | 330° at 20 kt | −19 kt | -25 °C | 139 kt | 6 h 11 min | 6:36 am PDT (13:36 UTC) |
| 30,000 ft FL300 | 310° at 20 kt | −16 kt | -32 °C | 136 kt | 6 h 19 min | 6:44 am PDT (13:44 UTC) |
| 34,000 ft FL340 | 270° at 20 kt | −5 kt | -37 °C | 125 kt | 6 h 52 min | 7:17 am PDT (14:17 UTC) |
| 39,000 ft FL390 | 240° at 28 kt | +6 kt | -42 °C | 114 kt | 7 h 32 min | 7:57 am PDT (14:57 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| SEA | used from 0 nm out; 25 nm from the line | 050/7 | 050/11 1° | 050/12 -5° | 030/31 -7° | 010/61 -15° | 010/69 -26° | 360/73 -40° | 360/62 -47° | 330/21 -43° |
| YKM | used from 50 nm out; 51 nm from the line | 070/10 | 040/15 -1° | 020/27 -8° | 030/25 -13° | 020/48 -20° | 010/83 -27° | 010/77 -37° | 010/49 -40° | 350/14 -41° |
| PDX | used from 100 nm out; 55 nm from the line | L/V | 030/7 1° | 020/12 -6° | 020/29 -9° | 010/69 -16° | 010/81 -25° | 360/83 -40° | 360/67 -46° | 320/29 -42° |
| RDM | used from 150 nm out; 29 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 250 nm out; 59 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° | ||
| RNO | used from 399 nm out; 81 nm from the line | 010/9 | 320/10 -2° | 210/23 -9° | 210/34 -19° | 220/36 -25° | 230/31 -29° | 230/41 -33° | 230/38 -42° | |
| BIH | used from 549 nm out; 61 nm from the line | L/V | 240/7 1° | 190/13 -3° | 200/26 -16° | 210/43 -26° | 220/54 -28° | 220/51 -35° | 220/47 -43° | |
| WJF | used from 699 nm out; 88 nm from the line | 200/28 6° | 210/28 3° | 210/29 -4° | 210/28 -14° | 220/41 -20° | 220/47 -29° | 220/46 -37° | 220/53 -44° | |
| ONT | used from 799 nm out; 49 nm from the line | 190/8 | 190/19 6° | 210/23 4° | 210/29 -3° | 210/47 -13° | 210/49 -19° | 220/47 -30° | 220/50 -36° | 220/55 -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 |
|---|---|---|---|---|---|---|---|
| SEA Seattle, WA | departure | VFR | from the east-southeast (120°) at 7 knots | 10+ mi | none | 432 ft | 11:53 pm PDT (06:53 UTC) |
| PLU Puyallup, WA | 20 nm out, 6 nm west of the line | VFR Weather: light drizzle | calm | 10+ mi | none | 537 ft | 07:15 UTC |
| DLS The Dalles, OR | 120 nm out, 8 nm northeast of the line | VFR Sky: overcast at 10,000 feet | from the west-southwest (240°) at 5 knots | 10+ mi | 10,000 ft | 246 ft | 06:53 UTC |
| RDM Redmond, OR | 200 nm out, 18 nm west of the line, tower | VFR | calm | 10+ mi | none | 3,081 ft | 06:56 UTC |
| FLX Fallon, NV | 499 nm out, 6 nm southwest of the line | no report just now | 3,966 ft | ||||
| HTH Hawthorne, NV | 559 nm out, 17 nm west of the line | marginal VFR Sky: overcast at 2,100 feet Weather: haze | from the north-northwest (340°) at 5 knots | 3 mi | 2,100 ft | 4,230 ft | 07:15 UTC |
| DAG Daggett, CA | 799 nm out, 5 nm northeast of the line | VFR Sky: a few clouds at 11,000 feet | from the northwest (320°) at 10 knots | 10+ mi | none | 1,930 ft | 06:50 UTC |
| PSP Palm Springs, CA | destination | VFR Sky: a broken layer at 7,000 feet | calm | 10+ mi | 7,000 ft | 476 ft | 11:53 pm PDT (06:53 UTC) |
The highest airport on this list sits at 4,230 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At PSP when you get there the forecast at the estimated arrival, 6:36 am PDT (13:36 UTC)
Wind light and variable, visibility more than 6 miles, a few clouds at 10,000 feet VFR
The whole forecast for PSP
- From Sun 11:00 pm PDT (06:00 UTC): wind light and variable, visibility more than 6 miles, a few clouds at 10,000 feet
- From Mon 2:00 pm PDT (21:00 UTC): wind from the northwest at 11 knots, gusting to 18, visibility more than 6 miles, a few clouds at 10,000 feet
The forecast for SEA, the departure
- From Sun 11:00 pm PDT (06:00 UTC): wind from the east-northeast at 6 knots, visibility more than 6 miles, clear skies
- From Mon 3:00 am PDT (10:00 UTC): wind from the southeast at 4 knots, visibility more than 6 miles, patches of fog, clear skies
- From Mon 9:00 am PDT (16:00 UTC): wind from the south-southeast at 4 knots, visibility more than 6 miles, clear skies
- From Mon 11:00 am PDT (18:00 UTC): wind from the west at 6 knots, visibility more than 6 miles, clear skies
- From Mon 8:00 pm PDT (03:00 UTC): wind from the south at 4 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
Temporary flight restrictions on the line or within 25 nm of it
- 6/8887 Indio, CA, Sunday, October 11, 2026 through Monday, October 12, 2026 Local 15 nm from the route, at the destination end · security · until 12 October · ZLA
Daylight
Sunset at SEA 6:25 pm PDT (01:25 UTC), at PSP 6:14 pm PDT (01:14 UTC) (civil twilight ends 6:39 pm PDT (01:39 UTC)). At 120 knots the arrival at PSP is before sunrise there (6:48 am PDT (13:48 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: Seattle-Tacoma International, Palm Springs International.