Plan a flight · Sun 8:06 pm PDT (03:06 UTC)

Oakland San Francisco Bay Airport to Boeing Fld/King County International OAK → BFI

589 nautical miles (678 statute miles) north on a straight line, true course 360°, about 346° magnetic at the departure end (variation 14E). At 120 knots that is 5 h 10 min at the quickest height in today's winds (4,500 ft, a 6-knot headwind), arriving about 1:16 am PDT (08:16 UTC), after sunset at the destination. Right now OAK is VFR, wind from the southwest (220°) at 8 knots; BFI 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: 49 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 TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the whole 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 OAK.

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

E75L at 34,000 ft, 3 nm northeast, 6:25 pm PDT (01:25 UTC): moderate chop turbulence, remarks: entered by zoa fdcs. 100 nm along the route, 3 nm northeast of the line.
as filed, and in English
```
RNO UA /OV RBL160040/TM 0125/FL340/TP E75L/TB MOD CHOP/RM ENTERED BY ZOA FDCS
```
Report
a routine report filed through RNO
Where
40 nm south (160°) of RBL
Time
01:25 UTC
Height
at 34,000 ft
Aircraft
E75L
Turbulence
moderate chop
Remarks
entered by zoa fdcs
B739 at 10,000 ft, 42 nm west, 6:19 pm PDT (01:19 UTC): moderate rime icing from 10,000 ft to 12,000 ft, -12 °C. 479 nm along the route, 42 nm west of the line.
as filed, and in English
```
PDX UA /OV 30W PDX/TM 0119/FL100/TP B739/TA M12/IC MOD RIME 120-100
```
Report
a routine report filed through PDX
Where
30W pdx
Time
01:19 UTC
Height
at 10,000 ft
Aircraft
B739
Temperature
−12 °C
Icing
moderate rime from 12,000 ft to 10,000 ft
EPIC at 31,000 ft, 46 nm west, 6:38 pm PDT (01:38 UTC): moderate turbulence from 30,000 ft to 31,000 ft, remarks: zse. 509 nm along the route, 46 nm west of the line.
as filed, and in English
```
AST UA /OV AST070020/TM 0138/FL310/TP EPIC/TB MOD 310-300/RM ZSE
```
Report
a routine report filed through AST
Where
20 nm east (070°) of AST
Time
01:38 UTC
Height
at 31,000 ft
Aircraft
EPIC
Turbulence
moderate from 31,000 ft to 30,000 ft
Remarks
zse
B738 at 11,000 ft, 48 nm east, 6:19 pm PDT (01:19 UTC): light rime icing, remarks: during the descent runway 5. 389 nm along the route, 48 nm east of the line.
as filed, and in English
```
RDM UA /OV RDM/TM 0119/FL110/TP B738/TA UNKN/IC LGT RIME/RM DURD RWY 5
```
Report
a routine report filed through RDM
Where
over RDM
Time
01:19 UTC
Height
at 11,000 ft
Aircraft
B738
Temperature
UNKN
Icing
light rime
Remarks
during the descent runway 5
E75L at 11,000 ft, 48 nm east, 6:16 pm PDT (01:16 UTC): light rime icing, remarks: during the descent runway 29. 389 nm along the route, 48 nm east of the line.
as filed, and in English
```
RDM UA /OV RDM/TM 0116/FL110/TP E75L/TA UNKN/IC LGT RIME/RM DURD RWY 29
```
Report
a routine report filed through RDM
Where
over RDM
Time
01:16 UTC
Height
at 11,000 ft
Aircraft
E75L
Temperature
UNKN
Icing
light rime
Remarks
during the descent runway 29
E175 at 6,500 ft, 48 nm east, 5:28 pm PDT (00:28 UTC): a broken layer above 6,500 ft. 389 nm along the route, 48 nm east of the line.
as filed, and in English
```
RDM UA /OV RDM/TM 0028/FL065/TP E175/SK BKN065-TOPSUNKN
```
Report
a routine report filed through RDM
Where
over RDM
Time
00:28 UTC
Height
at 6,500 ft
Aircraft
E175
Sky
a broken layer from 6,500 ft, tops unknown
A321 at 13,500 ft, 29 nm east, 6:54 pm PDT (01:54 UTC): remarks: zse. 549 nm along the route, 29 nm east of the line.
as filed, and in English
```
SEA UA /OV SEA120045/TM 0154/FL135/TP A321/SK TOP130/RM ZSE
```
Report
a routine report filed through SEA
Where
45 nm southeast (120°) of SEA
Time
01:54 UTC
Height
at 13,500 ft
Aircraft
A321
Sky
TOP130
Remarks
zse
PC12 at 13,000 ft, 29 nm east, 5:42 pm PDT (00:42 UTC): remarks: zse. 549 nm along the route, 29 nm east 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
PC12 at 15,000 ft, 29 nm east, 5:42 pm PDT (00:42 UTC): remarks: zse. 549 nm along the route, 29 nm east 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
SB20 at 16,000 ft, 50 nm northeast, 6:52 pm PDT (01:52 UTC): remarks: zse. At the destination end, 50 nm northeast of the line.
as filed, and in English
```
PAE UA /OV PAE075045/TM 0152/FL160/TP SB20/SK TOP120/RM ZSE
```
Report
a routine report filed through PAE
Where
45 nm east (075°) of PAE
Time
01:52 UTC
Height
at 16,000 ft
Aircraft
SB20
Sky
TOP120
Remarks
zse

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 (SFO, SAC, RBL, SIY, RDM, PDX, 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	050° at 9 kt	+6 kt	0 °C	114 kt	5 h 10 min	1:16 am PDT (08:16 UTC)
6,500 ft	040° at 10 kt	+8 kt	1 °C	112 kt	5 h 16 min	1:22 am PDT (08:22 UTC)
8,500 ft	020° at 12 kt	+11 kt	-3 °C	109 kt	5 h 24 min	1:30 am PDT (08:30 UTC)
10,500 ft	010° at 17 kt	+17 kt	-6 °C	103 kt	5 h 43 min	1:49 am PDT (08:49 UTC)
12,500 ft	010° at 25 kt	+25 kt	-9 °C	95 kt	6 h 12 min	2:18 am PDT (09:18 UTC)
14,500 ft	010° at 38 kt	+38 kt	-11 °C	82 kt	7 h 11 min	3:17 am PDT (10:17 UTC)
16,500 ft	360° at 51 kt	+50 kt	-13 °C	70 kt	8 h 25 min	4:31 am PDT (11:31 UTC)
18,000 ft FL180	360° at 60 kt	+60 kt	-15 °C	60 kt	9 h 49 min	5:55 am PDT (12:55 UTC)
24,000 ft FL240	360° at 81 kt	+81 kt	-24 °C	39 kt	15 h 06 min	11:12 am PDT (18:12 UTC)
30,000 ft FL300	360° at 72 kt	+72 kt	-37 °C	48 kt	12 h 16 min	8:22 am PDT (15:22 UTC)
34,000 ft FL340	350° at 40 kt	+40 kt	-41 °C	80 kt	7 h 22 min	3:28 am PDT (10:28 UTC)
39,000 ft FL390	290° at 19 kt	+7 kt	-42 °C	113 kt	5 h 13 min	1:19 am PDT (08:19 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
SFO	used from 0 nm out; 32 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°
SAC	used from 50 nm out; 44 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°
RBL	used from 100 nm out; 21 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°
SIY	used from 200 nm out; 22 nm from the line		050/17 1°	010/16 -5°	360/26 -8°	360/71 -14°	360/94 -23°	360/88 -37°	350/41 -40°	290/17 -41°
RDM	used from 349 nm out; 51 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°
PDX	used from 399 nm out; 50 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°
SEA	used from 549 nm out; 15 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°

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
OAK Oakland, CA	departure	VFR Sky: a few clouds at 1,600 feet	from the southwest (220°) at 8 knots	10+ mi	none	9 ft	7:53 pm PDT (02:53 UTC)
APC Napa, CA	30 nm out, 3 nm west of the line, tower	VFR	from the south (180°) at 9 knots	10+ mi	none	35 ft	02:54 UTC
WLW Willows, CA	110 nm out, 2 nm south of the line	no report just now				141 ft
RDD Redding, CA	170 nm out, 3 nm southwest of the line, tower	VFR	from the north (360°) at 8 knots	10+ mi	none	505 ft	02:53 UTC
LMT Klamath Falls, OR	270 nm out, 23 nm east of the line, tower	VFR	from the north-northwest (330°) at 11 knots	10+ mi	none	4,095 ft	02:53 UTC
TTD Portland, OR	469 nm out, 5 nm west of the line, tower	VFR Sky: a broken layer at 5,500 feet	calm	10+ mi	5,500 ft	38 ft	02:53 UTC
VUO Vancouver, WA	479 nm out, 16 nm west of the line	VFR Sky: a broken layer at 10,000 feet	calm	10+ mi	10,000 ft	28 ft	02:53 UTC
TIW Tacoma, WA	569 nm out, 12 nm west of the line, tower	VFR	from the north-northeast (030°) at 5 knots	10+ mi	none	294 ft	02:53 UTC
BFI Seattle, WA	destination	VFR	calm	10+ mi	none	21 ft	7:53 pm PDT (02:53 UTC)

The highest airport on this list sits at 4,095 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At BFI when you get there the forecast at the estimated arrival, 1:16 am PDT (08:16 UTC)

Wind light and variable, visibility more than 6 miles, clear skies VFR

The whole forecast for BFI

From Sun 5:00 pm PDT (00:00 UTC): wind from the north-northwest at 8 knots, gusting to 18, visibility more than 6 miles, a few clouds at 5,000 feet
From Sun 7:00 pm PDT (02:00 UTC): wind light and variable, visibility more than 6 miles, clear skies
From Mon 3:00 am PDT (10:00 UTC): wind light and variable, 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 3 knots, visibility more than 6 miles, clear skies
From Mon 12:00 pm PDT (19:00 UTC): wind from the west-southwest at 3 knots, visibility more than 6 miles, clear skies
From Mon 2:00 pm PDT (21:00 UTC): wind from the west at 5 knots, visibility more than 6 miles, clear skies

The forecast for OAK, the departure

From Sun 5:00 pm PDT (00:00 UTC): wind from the west-southwest at 12 knots, visibility more than 6 miles, a few clouds at 2,000 feet
From Sun 7:00 pm PDT (02:00 UTC): wind from the west-southwest at 8 knots, visibility more than 6 miles, a few clouds at 2,000 feet
From Sun 11:00 pm PDT (06:00 UTC): wind from the east-southeast at 5 knots, visibility more than 6 miles, clear skies
From Mon 3:00 pm PDT (22:00 UTC): wind from the west at 10 knots, visibility more than 6 miles, clear skies

Temporary flight restrictions on the line or within 25 nm of it

6/7231 Santa Clara, CA, Sunday, October 11, 2026 through Monday, October 12, 2026 UTC 22 nm from the route, at the departure end · drones kept away from a public gathering · until 12 October · ZOA

Daylight

Sunset at OAK 6:35 pm PDT (01:35 UTC), at BFI 6:27 pm PDT (01:27 UTC) (civil twilight ends 6:58 pm PDT (01:58 UTC)). At 120 knots the arrival at BFI 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 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: Oakland San Francisco Bay Airport, Boeing Fld/King County International.