Plan a flight · Sun 11:38 pm PDT (06:38 UTC)

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 5:49 am PDT (12:49 UTC), after sunset at the destination. Right now SEA is VFR, wind from the east-southeast (110°) at 6 knots; PSP is VFR, wind from the west-northwest (300°) 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: 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 W15W: thunderstorms (a convective SIGMET) up to 28,000 ft, moving from the southwest at 20 knots, until 12:55 am PDT (07:55 UTC). Over the route from 599 to 599 nm out.
as issued
```
WSUS33 KKCI 120555
MKCW WST 120555
CONVECTIVE SIGMET 15W
VALID UNTIL 0755Z
UT NV
FROM 60WNW BVL-10NE BVL-80E OAL-40SE OAL-20W OAL-60WNW BVL
AREA TS MOV FROM 24020KT. TOPS TO FL280.
```
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
B737 at 10,000 ft, 18 nm west, 9:25 pm PDT (04:25 UTC): no icing, remarks: during the descent runway 5. 200 nm along the route, 18 nm west of the line.
as filed, and in English
```
RDM UA /OV RDM/TM 0425/FL100/TP B737/TA UNKN/IC NEG/RM DURD RWY 5
```
Report
a routine report filed through RDM
Where
over RDM
Time
04:25 UTC
Height
at 10,000 ft
Aircraft
B737
Temperature
UNKN
Icing
none
Remarks
during the descent runway 5
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
B38M at 4,500 ft, 37 nm southwest, 9:15 pm PDT (04:15 UTC): a broken layer above 4,500 ft, remarks: during the descent. At the destination end, 37 nm southwest of the line.
as filed, and in English
```
ONT UA /OV ONT078012/TM 0415/FL045/TP B38M/SK BKN045-TOPUNKN/RM DURD
```
Report
a routine report filed through ONT
Where
12 nm east (078°) of ONT
Time
04:15 UTC
Height
at 4,500 ft
Aircraft
B38M
Sky
a broken layer from 4,500 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	6:51 am PDT (13:51 UTC)
7,500 ft	360° at 3 kt	−2 kt	-2 °C	122 kt	7 h 02 min	6:40 am PDT (13:40 UTC)
9,500 ft	330° at 3 kt	−3 kt	-4 °C	123 kt	6 h 59 min	6:37 am PDT (13:37 UTC)
11,500 ft	280° at 2 kt	−1 kt	-7 °C	121 kt	7 h 06 min	6:44 am PDT (13:44 UTC)
13,500 ft	290° at 4 kt	−2 kt	-10 °C	122 kt	7 h 02 min	6:40 am PDT (13:40 UTC)
15,500 ft	300° at 5 kt	−4 kt	-14 °C	124 kt	6 h 56 min	6:34 am PDT (13:34 UTC)
17,500 ft	310° at 7 kt	−6 kt	-16 °C	126 kt	6 h 49 min	6:27 am PDT (13:27 UTC)
18,000 ft FL180	310° at 8 kt	−6 kt	-17 °C	126 kt	6 h 49 min	6:27 am PDT (13:27 UTC)
24,000 ft FL240	330° at 20 kt	−19 kt	-25 °C	139 kt	6 h 11 min	5:49 am PDT (12:49 UTC)
30,000 ft FL300	310° at 20 kt	−16 kt	-32 °C	136 kt	6 h 19 min	5:57 am PDT (12:57 UTC)
34,000 ft FL340	270° at 20 kt	−5 kt	-37 °C	125 kt	6 h 52 min	6:30 am PDT (13:30 UTC)
39,000 ft FL390	240° at 28 kt	+6 kt	-42 °C	114 kt	7 h 32 min	7:10 am PDT (14:10 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 (110°) at 6 knots	10+ mi	none	432 ft	10:53 pm PDT (05:53 UTC)
PLU Puyallup, WA	20 nm out, 6 nm west of the line	VFR Weather: light drizzle	calm	10+ mi	none	537 ft	06:15 UTC
DLS The Dalles, OR	120 nm out, 8 nm northeast of the line	VFR Sky: overcast at 10,000 feet	calm	10+ mi	10,000 ft	246 ft	05:53 UTC
RDM Redmond, OR	200 nm out, 18 nm west of the line, tower	VFR Sky: a few clouds at 8,000 feet	calm	10+ mi	none	3,081 ft	05:56 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: scattered clouds at 1,800 feet, a broken layer at 2,300 feet, a broken layer at 3,200 feet Weather: haze	from the northwest (320°) at 9 knots	4 mi	2,300 ft	4,230 ft	06:15 UTC
DAG Daggett, CA	799 nm out, 5 nm northeast of the line	VFR Sky: a broken layer at 11,000 feet	from the northwest (310°) at 11 knots	10+ mi	11,000 ft	1,930 ft	05:50 UTC
PSP Palm Springs, CA	destination	VFR Sky: a few clouds at 7,000 feet	from the west-northwest (300°) at 6 knots	10+ mi	none	476 ft	10:53 pm PDT (05:53 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, 5:49 am PDT (12:49 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 6:27 pm PDT (01:27 UTC), at PSP 6:16 pm PDT (01:16 UTC) (civil twilight ends 6:41 pm PDT (01:41 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

Radar now, the Pacific Northwest · loop National Weather Service

Radar now, the Pacific Southwest · loop National Weather Service

Radar, the whole country · loop National Weather Service

Surface analysis now Weather Prediction Center

Forecast chart, 12 hours ahead Weather Prediction Center

Forecast chart, 24 hours ahead Weather Prediction Center

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.