Plan a flight · Sun 6:09 pm MST (01:09 UTC)

Phoenix Sky Harbor International to Seattle-Tacoma International PHX → SEA

962 nautical miles (1,107 statute miles) northwest on a straight line, true course 334°, about 322° magnetic at the departure end (variation 12E). At 120 knots that is 7 h 31 min at the quickest height in today's winds (34,000 ft, a 8-knot tailwind), arriving about 1:40 am PDT (08:40 UTC), after sunset at the destination. Right now PHX is VFR, wind from the west-northwest (290°) at 14 knots; SEA is VFR, wind from the north (350°) at 11 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: 14,355 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 SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 20 to 794 nm out.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 79 to 317 nm out.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 89 to 496 nm out.
AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the route from 99 to 615 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 159 to 188 nm out.
AIRMET TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 15,000 ft. Over the route from 337 to 347 nm out.
AIRMET ZULU 2C: moderate icing up to 14,000 ft. Over the route from 734 to 843 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 PHX.

Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first

UAL493 at 24,000 ft, 25 nm east, 3:54 pm MST (22:54 UTC): moderate turbulence. 218 nm along the route, 25 nm east of the line.
as filed, and in English
```
ARP UAL493 3648N 11330W 2254 F240 TB MODERATE SK IN CLOUDS IC LIGHT
```
Report
a routine report filed through ARP
B738 at 17,000 ft, 6 nm east, 4:54 pm MST (23:54 UTC): light rime icing, 9 °C, remarks: during the descent. At the departure end, 6 nm east of the line.
as filed, and in English
```
PHX UA /OV PXR330030/TM 2354/FL170/TP B738/TA 09/IC LGT RIME/RM DURD
```
Report
a routine report filed through PHX
Where
30 nm northwest (330°) of PXR
Time
23:54 UTC
Height
at 17,000 ft
Aircraft
B738
Temperature
9 °C
Icing
light rime
Remarks
during the descent
A320 at 14,000 ft, 36 nm east, 5:39 pm MST (00:39 UTC): light to moderate turbulence, remarks: zab fdcs. 40 nm along the route, 36 nm east of the line.
as filed, and in English
```
PHX UA /OV PXR005050/TM 0039/FL140/TP A320/TB LGT-MOD/RM ZAB FDCS
```
Report
a routine report filed through PHX
Where
50 nm north (005°) of PXR
Time
00:39 UTC
Height
at 14,000 ft
Aircraft
A320
Turbulence
light to moderate
Remarks
zab fdcs
B738 at 21,000 ft, 23 nm southwest, 3:14 pm MST (22:14 UTC): light rime icing from 20,000 ft to 21,000 ft, -2 °C, remarks: during the climb zlawc. 169 nm along the route, 23 nm southwest of the line.
as filed, and in English
```
CDC UA /OV PGS275020/TM 2214/FL210/TP B738/TA M02/IC LGT RIME 200-210/RM DURC ZLAWC AWC-WEB
```
Report
a routine report filed through CDC
Where
20 nm west (275°) of PGS
Time
22:14 UTC
Height
at 21,000 ft
Aircraft
B738
Temperature
−2 °C
Icing
light rime from 20,000 ft to 21,000 ft
Remarks
during the climb zlawc
B38M at 23,000 ft, 11 nm southwest, 4:04 pm MST (23:04 UTC): light rime icing from 23,000 ft to 25,000 ft, -25 °C, remarks: zlawc. 188 nm along the route, 11 nm southwest of the line.
as filed, and in English
```
LAS UA /OV BLD064047/TM 2304/FL230/TP B38M/TA M25/IC LGT RIME 230-250/RM ZLAWC AWC-WEB
```
Report
a routine report filed through LAS
Where
47 nm northeast (064°) of BLD
Time
23:04 UTC
Height
at 23,000 ft
Aircraft
B38M
Temperature
−25 °C
Icing
light rime from 23,000 ft to 25,000 ft
Remarks
zlawc
B752 at 17,500 ft, 33 nm west, 3:48 pm MST (22:48 UTC): a broken layer from 17,500 ft to 18,500 ft; overcast, remarks: layer of precip west of niitz 25 nautical miles lgt-hvy rain zlawc. 188 nm along the route, 33 nm west of the line.
as filed, and in English
```
LAS UA /OV BLD065025/TM 2248/FL175/TP B752/SK BKN175-TOP185/OVC/RM LAYER OF PRECIP W OF NIITZ 25 NM LGT-HVY RAIN /ZLAWC AWC-WEB
```
Report
a routine report filed through LAS
Where
BLD065025 C
Time
22:48 UTC
Height
at 17,500 ft
Aircraft
B752
Sky
a broken layer from 17,500 ft, tops 18,500 ft
Remarks
layer of precip west of niitz 25 nautical miles lgt-hvy rain zlawc
B38M at 27,000 ft, 11 nm east, 5:03 pm MST (00:03 UTC): light rime icing, -27 °C, remarks: during the descent. 218 nm along the route, 11 nm east of the line.
as filed, and in English
```
CDC UA /OV MMM085025/TM 0003/FL270/TP B38M/TA M27/IC LGT RIME/RM DURD AWC-WEB
```
Report
a routine report filed through CDC
Where
25 nm east (085°) of MMM
Time
00:03 UTC
Height
at 27,000 ft
Aircraft
B38M
Temperature
−27 °C
Icing
light rime
Remarks
during the descent
B737 at 24,000 ft, 7 nm southwest, 4:29 pm MST (23:29 UTC): light rime icing, -21 °C, remarks: during the descent during the descent choww arv zlawc. 218 nm along the route, 7 nm southwest of the line.
as filed, and in English
```
CDC UA /OV MMM120015/TM 2329/FL240/TP B737/TA M21/IC LGT RIME/RM DURD DURD CHOWW ARV /ZLAWC AWC-WEB
```
Report
a routine report filed through CDC
Where
15 nm southeast (120°) of MMM
Time
23:29 UTC
Height
at 24,000 ft
Aircraft
B737
Temperature
−21 °C
Icing
light rime
Remarks
during the descent during the descent choww arv zlawc
PC24 at 40,000 ft, 39 nm southwest, 4:10 pm MST (23:10 UTC): light to moderate turbulence. 575 nm along the route, 39 nm southwest of the line.
as filed, and in English
```
LOL UA /OV SDO291023/TM 2310/FL400/TP PC24/TB LGT OCNL MOD /ZLC
```
Report
a routine report filed through LOL
Where
23 nm west (291°) of SDO
Time
23:10 UTC
Height
at 40,000 ft
Aircraft
PC24
Turbulence
light occasional moderate zlc
C210 at 9,000 ft, 24 nm northeast, 3:51 pm MST (22:51 UTC): light rime icing, -13 °C, remarks: base 080-ZSE. 804 nm along the route, 24 nm northeast of the line.
as filed, and in English
```
PDT UA /OV PDT230040/TM 2251/FL090/TP C210/TA M13/IC LGT RIME/RM BASE 080-ZSE
```
Report
a routine report filed through PDT
Where
40 nm southwest (230°) of PDT
Time
22:51 UTC
Height
at 9,000 ft
Aircraft
C210
Temperature
−13 °C
Icing
light rime
Remarks
base 080-ZSE
PC12 at 15,000 ft, 7 nm northeast, 5:42 pm MST (00:42 UTC): remarks: zse. 913 nm along the route, 7 nm northeast of the line.
as filed, and in English
```
YKM UA /OV YKM270050/TM 0042/FL150/TP PC12/SK TOP130/RM -ZSE
```
Report
a routine report filed through YKM
Where
50 nm west (270°) of YKM
Time
00:42 UTC
Height
at 15,000 ft
Aircraft
PC12
Sky
TOP130
Remarks
zse
PC12 at 13,000 ft, 7 nm northeast, 5:42 pm MST (00:42 UTC): remarks: zse. 913 nm along the route, 7 nm northeast of the line.
as filed, and in English
```
YKM UA /OV YKM270050/TM 0042/FL130/TP PC12/SK TOP130/RM -ZSE
```
Report
a routine report filed through YKM
Where
50 nm west (270°) of YKM
Time
00:42 UTC
Height
at 13,000 ft
Aircraft
PC12
Sky
TOP130
Remarks
zse

Winds aloft along the route, and the time en route the forecast for use 20:00–03:00 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 10 forecast points nearest it (PHX, PRC, LAS, ELY, BAM, BOI, LKV, RDM, YKM, SEA). 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	270° at 2 kt	+1 kt	5 °C	119 kt	8 h 05 min	2:14 am PDT (09:14 UTC)
6,500 ft	290° at 2 kt	+1 kt	4 °C	119 kt	8 h 05 min	2:14 am PDT (09:14 UTC)
8,500 ft	230° at 6 kt	−2 kt	1 °C	122 kt	7 h 53 min	2:02 am PDT (09:02 UTC)
10,500 ft	240° at 9 kt	−1 kt	-2 °C	121 kt	7 h 57 min	2:06 am PDT (09:06 UTC)
12,500 ft	240° at 13 kt	−2 kt	-6 °C	122 kt	7 h 53 min	2:02 am PDT (09:02 UTC)
14,500 ft	240° at 15 kt	−2 kt	-10 °C	122 kt	7 h 53 min	2:02 am PDT (09:02 UTC)
16,500 ft	240° at 17 kt	−2 kt	-13 °C	122 kt	7 h 53 min	2:02 am PDT (09:02 UTC)
18,000 ft FL180	240° at 19 kt	−2 kt	-16 °C	122 kt	7 h 53 min	2:02 am PDT (09:02 UTC)
24,000 ft FL240	240° at 20 kt	−3 kt	-25 °C	123 kt	7 h 49 min	1:58 am PDT (08:58 UTC)
30,000 ft FL300	230° at 33 kt	−5 kt	-30 °C	125 kt	7 h 42 min	1:51 am PDT (08:51 UTC)
34,000 ft FL340	230° at 40 kt	−8 kt	-35 °C	128 kt	7 h 31 min	1:40 am PDT (08:40 UTC)
39,000 ft FL390	230° at 41 kt	−8 kt	-43 °C	128 kt	7 h 31 min	1:40 am PDT (08:40 UTC)

Based on data from the 11th at 18:00 UTC; valid on the 12th at 00:00 UTC for use 20:00 to 03:00 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
PHX	used from 0 nm out; 25 nm from the line	210/19	210/20 14°	200/20 6°	210/40 1°	220/58 -8°	220/68 -20°	220/82 -26°	230/83 -34°	230/69 -46°
PRC	used from 50 nm out; 14 nm from the line			200/36 6°	210/46 0°	220/60 -10°	220/75 -19°	220/66 -26°	230/70 -33°	230/59 -45°
LAS	used from 149 nm out; 77 nm from the line		200/25 11°	230/22 5°	240/25 -1°	220/37 -12°	220/44 -21°	210/52 -27°	210/60 -34°	220/58 -44°
ELY	used from 298 nm out; 65 nm from the line			210/20 4°	240/21 -1°	230/37 -13°	200/58 -25°	220/73 -27°	220/73 -36°	220/69 -44°
BAM	used from 446 nm out; 20 nm from the line			270/8 4°	230/27 -4°	220/49 -18°	210/52 -26°	220/77 -29°	220/71 -33°	220/63 -43°
BOI	used from 595 nm out; 103 nm from the line		330/14 4°	230/5 -2°	220/20 -7°	210/37 -20°	200/59 -26°	200/67 -34°	210/73 -35°	220/62 -41°
LKV	used from 645 nm out; 101 nm from the line			010/18 -6°	280/7 -11°	290/9 -22°	280/13 -27°	290/20 -31°	260/19 -34°	260/27 -39°
RDM	used from 694 nm out; 82 nm from the line		010/15 -2°	030/21 -8°	020/26 -12°	020/46 -22°	010/72 -27°	360/47 -34°	340/31 -35°	320/20 -40°
YKM	used from 794 nm out; 69 nm from the line	030/16	020/18 0°	030/30 -8°	030/23 -13°	020/40 -23°	010/73 -29°	010/54 -36°	360/29 -37°	330/16 -40°
SEA	used from 893 nm out; 45 nm from the line	360/9	350/10 1°	010/10 -5°	030/20 -11°	020/60 -17°	010/86 -26°	360/90 -40°	010/68 -42°	360/31 -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
PHX Phoenix, AZ	departure	VFR Sky: a few clouds at 4,000 feet, a few clouds at 7,000 feet, scattered clouds at 10,000 feet	from the west-northwest (290°) at 14 knots	10+ mi	none	1,134 ft	5:51 pm MST (00:51 UTC)
DVT Phoenix, AZ	20 nm out, 6 nm southeast of the line, tower	VFR Sky: scattered clouds at 8,500 feet	from the north-northwest (340°) at 6 knots	10+ mi	none	1,478 ft	00:53 UTC
BAM Battle Mountain, NV	486 nm out, 9 nm west of the line	VFR Sky: overcast at 9,500 feet	from the northwest (320°) at 17 knots	10+ mi	9,500 ft	4,536 ft	00:55 UTC
REO Rome, OR	615 nm out, 10 nm northeast of the line	reported, no category	calm		none	4,053 ft	00:52 UTC
BNO Burns, OR	694 nm out, 3 nm south of the line	VFR	from the northwest (320°) at 11 knots, gusting to 22	10+ mi	none	4,148 ft	00:53 UTC
DLS The Dalles, OR	843 nm out, 19 nm southwest of the line	VFR Sky: overcast at 9,000 feet	from the west-southwest (240°) at 4 knots	10+ mi	9,000 ft	246 ft	00:53 UTC
PLU Puyallup, WA	942 nm out, 11 nm southwest of the line	VFR Weather: light drizzle	calm	10+ mi	none	537 ft	23:35 UTC
SEA Seattle, WA	destination	VFR Sky: a few clouds at 5,000 feet	from the north (350°) at 11 knots	10+ mi	none	432 ft	5:53 pm PDT (00:53 UTC)

The highest airport on this list sits at 4,536 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At SEA when you get there the forecast at the estimated arrival, 1:40 am PDT (08:40 UTC)

Wind from the northeast at 6 knots, visibility more than 6 miles, clear skies VFR

The whole forecast for SEA

From Sun 5:00 pm PDT (00:00 UTC): wind from the north at 12 knots, gusting to 20, visibility more than 6 miles, a few clouds at 2,000 feet, a few clouds at 5,000 feet
From Sun 8:00 pm PDT (03:00 UTC): wind from the 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 northwest at 5 knots, visibility more than 6 miles, scattered clouds at 25,000 feet

The forecast for PHX, the departure

From Sun 5:00 pm MST (00:00 UTC): wind from the west at 11 knots, gusting to 22, visibility more than 6 miles, showers nearby, scattered clouds at 6,000 feet, a broken layer at 7,000 feet
From Sun 7:00 pm MST (02:00 UTC): wind from the west at 12 knots, visibility more than 6 miles, scattered clouds at 6,000 feet, a broken layer at 7,000 feet
From Sun 10:00 pm MST (05:00 UTC): wind from the south-southeast at 11 knots, visibility more than 6 miles, a few clouds at 4,000 feet, scattered clouds at 7,000 feet
From Mon 2:00 am MST (09:00 UTC): wind from the east-southeast at 10 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 west-southwest at 14 knots, gusting to 22, visibility more than 6 miles, showers nearby, scattered clouds at 5,000 feet, a broken layer at 7,000 feet
From Mon 7:00 pm MST (02:00 UTC): wind from the west-southwest at 9 knots, visibility more than 6 miles, showers nearby, 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

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 PHX 5:58 pm MST (00:58 UTC), at SEA 6:27 pm PDT (01:27 UTC) (civil twilight ends 6:58 pm PDT (01:58 UTC)). At 120 knots the arrival at SEA is before sunrise there (7:23 am PDT (14:23 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

Radar now, the southern Rockies · loop National Weather Service

Radar now, the Pacific Southwest · loop National Weather Service

Radar now, the Pacific Northwest · 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: Phoenix Sky Harbor International, Seattle-Tacoma International.