Plan a flight · Mon 8:50 am PDT (15:50 UTC)

Seattle-Tacoma International to Wiley Post-Will Rogers Memorial SEA → BRW

1,727 nautical miles (1,987 statute miles) north on a straight line, true course 338°, about 322° magnetic at the departure end (variation 16E). At 120 knots that is 14 h 24 min at the quickest height in today's winds (4,500 ft, no wind along the track), arriving about 10:14 pm AKDT (06:14 UTC), after sunset at the destination. Right now SEA is VFR, wind variable at 4 knots; BRW is IFR, wind from the northeast (040°) at 15 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: 1 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

No SIGMET or AIRMET covers any part of this route right now.

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

CRJ9 at 32,000 ft, 43 nm south, 8:22 am PDT (15:22 UTC): no turbulence above 32,000 ft, remarks: zse. At the departure end, 43 nm south of the line.
as filed, and in English
```
SEA UA /OV SEA160042/TM 1522/FL320/TP CRJ9/TB NEG 320/RM ZSE
```
Report
a routine report filed through SEA
Where
42 nm south (160°) of SEA
Time
15:22 UTC
Height
at 32,000 ft
Aircraft
CRJ9
Turbulence
no at 32,000 ft
Remarks
zse

Winds aloft along the route, and the time en route the forecast for use 14:00–21:00 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 1 forecast point nearest it (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	light and variable	0		120 kt	14 h 24 min	10:14 pm AKDT (06:14 UTC)
6,500 ft	020° at 2 kt	+1 kt	0 °C	119 kt	14 h 31 min	10:21 pm AKDT (06:21 UTC)
8,500 ft	020° at 11 kt	+7 kt	-2 °C	113 kt	15 h 17 min	11:07 pm AKDT (07:07 UTC)
10,500 ft	020° at 20 kt	+12 kt	-3 °C	108 kt	15 h 59 min	11:49 pm AKDT (07:49 UTC)
12,500 ft	020° at 28 kt	+17 kt	-5 °C	103 kt	16 h 46 min	12:36 am AKDT (08:36 UTC)
14,500 ft	010° at 34 kt	+22 kt	-8 °C	98 kt	17 h 37 min	1:27 am AKDT (09:27 UTC)
16,500 ft	010° at 39 kt	+28 kt	-12 °C	92 kt	18 h 46 min	2:36 am AKDT (10:36 UTC)
18,000 ft FL180	010° at 43 kt	+31 kt	-14 °C	89 kt	19 h 24 min	3:14 am AKDT (11:14 UTC)
24,000 ft FL240	360° at 54 kt	+45 kt	-26 °C	75 kt	23 h 02 min	6:52 am AKDT (14:52 UTC)
30,000 ft FL300	360° at 63 kt	+52 kt	-40 °C	68 kt	25 h 24 min	9:14 am AKDT (17:14 UTC)
34,000 ft FL340	010° at 60 kt	+44 kt	-48 °C	76 kt	22 h 43 min	6:33 am AKDT (14:33 UTC)
39,000 ft FL390	350° at 39 kt	+36 kt	-50 °C	84 kt	20 h 34 min	4:24 am AKDT (12:24 UTC)

Based on data from the 12th at 12:00 UTC; valid on the 12th at 18:00 UTC for use 14:00 to 21:00 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	L/V	L/V 1°	020/13 -2°	020/27 -4°	010/43 -14°	360/54 -26°	360/63 -40°	010/60 -48°	350/39 -50°

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 Sky: a few clouds at 100 feet, a few clouds at 8,000 feet	variable at 4 knots	10+ mi	none	432 ft	7:53 am PDT (14:53 UTC)
CYVR Vancouver,	110 nm out, 8 nm northeast of the line, tower	VFR	from the east-northeast (070°) at 5 knots	30 mi	none	14 ft	15:00 UTC
CYYD Smithers,	479 nm out, 13 nm northeast of the line	VFR Sky: overcast at 7,000 feet Weather: light showers rain	variable at 2 knots	25 mi	7,000 ft	1,716 ft	15:43 UTC
CYZW Teslin,	848 nm out, 7 nm east of the line	VFR Sky: overcast at 5,300 feet	from the south (190°) at 10 knots	30 mi	5,300 ft	2,313 ft	00:00 UTC
CYDA Dawson City,	1138 nm out, 15 nm southwest of the line	low IFR Sky: overcast at 400 feet	from the southwest (220°) at 3 knots	15 mi	400 ft	1,215 ft	15:00 UTC
CIK Chalkyitsik, AK	1337 nm out, 10 nm south of the line	marginal VFR Sky: a broken layer at 3,100 feet, overcast at 4,500 feet Weather: light snow, mist	calm	4 mi	3,100 ft	548 ft	15:19 UTC
ARC Arctic Village, AK	1427 nm out, 18 nm northeast of the line	VFR Sky: overcast at 7,000 feet	calm	10+ mi	7,000 ft	2,092 ft	14:56 UTC
AQT Nuiqsut, AK	1597 nm out, 24 nm northeast of the line	VFR Sky: scattered clouds at 6,000 feet, a broken layer at 9,000 feet	from the south (180°) at 12 knots	10+ mi	9,000 ft	45 ft	10:53 UTC
BRW Utqiagvik, AK	destination	IFR Sky: overcast at 900 feet	from the northeast (040°) at 15 knots	10+ mi	900 ft	48 ft	7:48 am AKDT (15:48 UTC)

The highest airport on this list sits at 2,313 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At BRW when you get there the forecast at the estimated arrival, 10:14 pm AKDT (06:14 UTC)

Wind from the north-northeast at 12 knots, visibility 6 miles, light snow showers, a broken layer at 1,500 feet marginal VFR

The whole forecast for BRW

From Mon 4:00 am AKDT (12:00 UTC): wind from the north-northeast at 10 knots, visibility 4 miles, light snow, mist, overcast at 300 feet
From Mon 10:00 am AKDT (18:00 UTC): wind from the northeast at 12 knots, visibility 3 miles, light snow, mist, overcast at 700 feet
From Mon 1:00 pm AKDT (21:00 UTC): wind from the north-northeast at 12 knots, visibility 6 miles, light snow showers, a broken layer at 1,500 feet

The forecast for SEA, the departure

From Mon 8:00 am PDT (15:00 UTC): wind from the south-southeast at 5 knots, visibility more than 6 miles, clear skies
From Mon 9:00 am PDT (16:00 UTC): wind light and variable, visibility more than 6 miles, clear skies
From Mon 3:00 pm PDT (22:00 UTC): wind from the west at 5 knots, visibility more than 6 miles, clear skies
From Mon 8:00 pm PDT (03:00 UTC): wind light and variable, visibility more than 6 miles, scattered clouds at 25,000 feet
From Mon 11:00 pm PDT (06:00 UTC): wind from the southeast at 3 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
From Tue 4:00 am PDT (11:00 UTC): wind from the south-southeast at 5 knots, visibility more than 6 miles, overcast 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 SEA 6:25 pm PDT (01:25 UTC), at BRW 6:46 pm AKDT (02:46 UTC) (civil twilight ends 7:53 pm AKDT (03:53 UTC)). At 120 knots the arrival at BRW is after sunset there (6:51 pm AKDT (02:51 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, Alaska · 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, Wiley Post-Will Rogers Memorial.