Plan a flight · Mon 2:09 am EDT (06:09 UTC)

Burke Lakefront Airport to Boeing Fld/King County International BKL → BFI

1,755 nautical miles (2,019 statute miles) northwest on a straight line, true course 296°, about 303° magnetic at the departure end (variation 7W). At 120 knots that is 14 h 23 min at the quickest height in today's winds (4,500 ft, a 2-knot tailwind), arriving about 1:32 pm PDT (20:32 UTC). Right now BKL is marginal VFR, wind from the northwest (310°) 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: 2 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 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the first 209 nm of the route.
AIRMET TANGO 3W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground). Over the route from 349 to 489 nm out.
AIRMET SIERRA 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the route from 658 to 1486 nm out.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 1077 to 1087 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1206 to 1506 nm out.
AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 1286 to 1486 nm out.
AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the last 189 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 BKL.

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

A333 descending, 7 nm northeast, 1:44 am EDT (05:44 UTC): a routine report with nothing remarked on. 90 nm along the route, 7 nm northeast of the line.
as filed, and in English
```
DTW UA /OV DTW/TM 0544/FLDURD/TP A333/SK TOPS 025
```
Report
a routine report filed through DTW
Where
over DTW
Time
05:44 UTC
Height
during the descent
Aircraft
A333
Sky
tops 2,500 ft
B738 at 1,800 ft, 37 nm south, 1:18 am EDT (05:18 UTC): overcast from 1,800 ft to 2,700 ft, remarks: during the climb. 90 nm along the route, 37 nm south of the line.
as filed, and in English
```
TOL UA /OV KTOL/TM 0518/FL018/TP B738/SK OVC018-TOP027/RM DURC
```
Report
a routine report filed through TOL
Where
over KTOL
Time
05:18 UTC
Height
at 1,800 ft
Aircraft
B738
Sky
overcast from 1,800 ft, tops 2,700 ft
Remarks
during the climb
B739 descending, 7 nm northeast, 12:54 am EDT (04:54 UTC): a routine report with nothing remarked on. 90 nm along the route, 7 nm northeast of the line.
as filed, and in English
```
DTW UA /OV DTW/TM 0454/FLDURD/TP B739/SK BASES 011
```
Report
a routine report filed through DTW
Where
over DTW
Time
04:54 UTC
Height
during the descent
Aircraft
B739
Sky
bases 1,100 ft
B738 at 1,300 ft, 37 nm south, 12:45 am EDT (04:45 UTC): overcast from 1,300 ft to 3,000 ft, remarks: during the descent. 90 nm along the route, 37 nm south of the line.
as filed, and in English
```
TOL UA /OV KTOL/TM 0445/FL013/TP B738/SK OVC013-TOP030/RM DURD
```
Report
a routine report filed through TOL
Where
over KTOL
Time
04:45 UTC
Height
at 1,300 ft
Aircraft
B738
Sky
overcast from 1,300 ft, tops 3,000 ft
Remarks
during the descent
A320 descending, 7 nm northeast, 11:27 pm EDT (03:27 UTC): overcast above 1,400 ft. 90 nm along the route, 7 nm northeast of the line.
as filed, and in English
```
DTW UA /OV DTW/TM 0327/FLDURD/TP A320/SK 014 OVC
```
Report
a routine report filed through DTW
Where
over DTW
Time
03:27 UTC
Height
during the descent
Aircraft
A320
Sky
at 1,400 ft overcast
A321 at 16,500 ft, 32 nm south, 11:25 pm EDT (03:25 UTC): light turbulence, remarks: during the climb. 568 nm along the route, 32 nm south of the line.
as filed, and in English
```
MSP UA /OV MSP235040/TM 0325/FL165/TP A321/TB CONS LGT /RM DURC
```
Report
a routine report filed through MSP
Where
40 nm southwest (235°) of MSP
Time
03:25 UTC
Height
at 16,500 ft
Aircraft
A321
Turbulence
continuous light
Remarks
during the climb
CL30 at 4,200 ft, 39 nm south, 11:16 pm EDT (03:16 UTC): no icing, overcast above 4,200 ft, remarks: during the descent ils runway 12. 1416 nm along the route, 39 nm south of the line.
as filed, and in English
```
MSO UA /OV MSO/TM 0316/FL042/TP CL30/SK OVC042/WX 2 1/2SM/IC NEG/RM DURD ILS RY 12
```
Report
a routine report filed through MSO
Where
over MSO
Time
03:16 UTC
Height
at 4,200 ft
Aircraft
CL30
Sky
overcast from 4,200 ft
Weather
2, 1/2SM
Icing
none
Remarks
during the descent ils runway 12

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 16 forecast points nearest it (CLE, FWA, MKG, GRB, LSE, MSP, AXN, ABR, DIK, MLS, GGW, GTF, GPI, GEG, 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	170° at 4 kt	−2 kt	1 °C	122 kt	14 h 23 min	1:32 pm PDT (20:32 UTC)
6,500 ft	200° at 3 kt	0	8 °C	120 kt	14 h 38 min	1:47 pm PDT (20:47 UTC)
8,500 ft	220° at 5 kt	+2 kt	6 °C	118 kt	14 h 52 min	2:01 pm PDT (21:01 UTC)
10,500 ft	230° at 8 kt	+4 kt	1 °C	116 kt	15 h 08 min	2:17 pm PDT (21:17 UTC)
12,500 ft	230° at 12 kt	+7 kt	-2 °C	113 kt	15 h 32 min	2:41 pm PDT (21:41 UTC)
14,500 ft	240° at 14 kt	+11 kt	-5 °C	109 kt	16 h 06 min	3:15 pm PDT (22:15 UTC)
16,500 ft	250° at 18 kt	+15 kt	-9 °C	105 kt	16 h 43 min	3:52 pm PDT (22:52 UTC)
18,000 ft FL180	250° at 20 kt	+18 kt	-12 °C	102 kt	17 h 12 min	4:21 pm PDT (23:21 UTC)
24,000 ft FL240	250° at 22 kt	+20 kt	-23 °C	100 kt	17 h 33 min	4:42 pm PDT (23:42 UTC)
30,000 ft FL300	260° at 24 kt	+24 kt	-37 °C	96 kt	18 h 17 min	5:26 pm PDT (00:26 UTC)
34,000 ft FL340	260° at 34 kt	+34 kt	-43 °C	86 kt	20 h 24 min	7:33 pm PDT (02:33 UTC)
39,000 ft FL390	260° at 46 kt	+46 kt	-48 °C	74 kt	23 h 43 min	10:52 pm PDT (05:52 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
CLE	used from 0 nm out; 23 nm from the line	340/7	010/16 13°	350/18 8°	350/20 3°	340/31 -10°	340/46 -21°	340/54 -37°	330/62 -44°	340/65 -49°
FWA	used from 100 nm out; 96 nm from the line	300/17	320/20 16°	330/20 10°	340/15 3°	310/27 -8°	320/37 -20°	330/52 -36°	330/65 -43°	330/60 -50°
MKG	used from 150 nm out; 51 nm from the line	260/22	290/16 15°	300/11 10°	290/5 3°	300/26 -9°	300/32 -20°	320/48 -36°	320/61 -45°	310/74 -53°
GRB	used from 299 nm out; 50 nm from the line	250/36	270/23 16°	270/14 9°	240/18 4°	280/26 -9°	280/29 -20°	290/42 -36°	290/51 -45°	290/72 -55°
LSE	used from 399 nm out; 37 nm from the line	230/40	240/24 17°	240/13 10°	250/13 6°	280/22 -9°	250/28 -21°	250/41 -34°	260/42 -44°	270/62 -53°
MSP	used from 499 nm out; 20 nm from the line	230/26	240/30 17°	240/24 12°	250/22 5°	250/35 -10°	260/36 -21°	250/41 -36°	250/49 -45°	260/58 -52°
AXN	used from 598 nm out; 38 nm from the line	100/14	250/21 14°	240/24 12°	240/31 5°	260/36 -10°	260/40 -21°	250/42 -36°	260/48 -45°	260/53 -50°
ABR	used from 698 nm out; 51 nm from the line	070/14	250/10 17°	270/16 11°	260/28 5°	260/36 -10°	260/41 -22°	270/33 -37°	260/42 -42°	260/50 -48°
DIK	used from 848 nm out; 88 nm from the line		150/24 7°	200/38 6°	220/53 0°	230/51 -9°	230/49 -21°	240/37 -37°	240/47 -44°	250/65 -48°
MLS	used from 1047 nm out; 35 nm from the line		150/23 2°	190/29 4°	210/44 2°	220/32 -10°	210/36 -21°	200/48 -37°	230/63 -40°	240/71 -47°
GGW	used from 1147 nm out; 82 nm from the line		110/23 0°	130/20 -2°	170/24 -3°	230/44 -11°	220/51 -21°	210/52 -39°	220/64 -44°	240/85 -48°
GTF	used from 1196 nm out; 90 nm from the line		070/11	080/15 -7°	110/19 -9°	190/25 -14°	200/34 -23°	200/54 -39°	220/66 -40°	220/77 -44°
GPI	used from 1396 nm out; 46 nm from the line		070/19 -5°	100/16 -7°	080/10 -8°	130/8 -19°	170/37 -28°	200/50 -40°	210/43 -40°	220/41 -42°
GEG	used from 1496 nm out; 41 nm from the line		080/16 -2°	050/17 -7°	080/9 -10°	190/33 -21°	180/31 -32°	L/V -35°	L/V -37°	270/8 -40°
YKM	used from 1645 nm out; 63 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°
SEA	used from 1695 nm out; 36 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
BKL Cleveland, OH	departure	marginal VFR Sky: a few clouds at 1,000 feet, overcast at 1,900 feet	from the northwest (310°) at 8 knots	10+ mi	1,900 ft	583 ft	1:53 am EDT (05:53 UTC)
ARB Ann Arbor, MI	100 nm out, 2 nm west of the line, tower	reported, no category	calm		none	839 ft	05:53 UTC
GRR Grand Rapids, MI	189 nm out, 4 nm northeast of the line, tower	marginal VFR Weather: mist	from the south-southeast (160°) at 4 knots	4 mi	none	793 ft	05:53 UTC
CMY Sparta, WI	429 nm out, 20 nm south of the line, tower	VFR	calm	9 mi	none	839 ft	05:55 UTC
STP St Paul, MN	538 nm out, 4 nm northeast of the line, tower	VFR	from the east-southeast (120°) at 3 knots	10+ mi	none	705 ft	05:53 UTC
BTN Britton, SD	738 nm out, 4 nm west of the line	low IFR Sky: overcast at 300 feet Weather: mist, unknown precipitation	from the north-northeast (030°) at 11 knots	1 mi	300 ft	1,318 ft	05:55 UTC
DIK Dickinson, ND	957 nm out, 10 nm north of the line	low IFR Sky: overcast at 400 feet	from the east (080°) at 12 knots	10+ mi	400 ft	2,592 ft	05:56 UTC
JDN Jordan, MT	1137 nm out, 14 nm northeast of the line	reported, no category	from the northeast (040°) at 11 knots		none	2,667 ft	05:48 UTC
GTF Great Falls, MT	1316 nm out, 5 nm northeast of the line, tower	marginal VFR Sky: a few clouds at 600 feet, overcast at 1,000 feet Weather: light snow, mist	from the north (350°) at 10 knots	3 mi	1,000 ft	3,680 ft	06:01 UTC
GEG Spokane, WA	1565 nm out, 4 nm east of the line, tower	VFR Sky: a few clouds at 8,000 feet, scattered clouds at 12,000 feet	from the northeast (040°) at 10 knots	10+ mi	none	2,385 ft	05:53 UTC
MWH Moses Lake, WA	1635 nm out, 24 nm south of the line, tower	VFR Sky: overcast at 12,000 feet	from the north-northwest (330°) at 4 knots	10+ mi	12,000 ft	1,188 ft	05:52 UTC
BFI Seattle, WA	destination	VFR	calm	10+ mi	none	21 ft	10:53 pm PDT (05:53 UTC)

The highest airport on this list sits at 3,680 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, 1:32 pm PDT (20:32 UTC)

Wind from the west-southwest at 3 knots, visibility more than 6 miles, clear skies VFR

The whole forecast for BFI

From Sun 11:00 pm PDT (06:00 UTC): wind calm, visibility more than 6 miles, clear skies
From Mon 3:00 am PDT (10:00 UTC): wind calm, 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
From Mon 7:00 pm PDT (02:00 UTC): wind calm, visibility more than 6 miles, clear skies

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

6/8829 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local 18 nm from the route, at the departure end · a VIP movement · today · ZOB
6/8587 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local 18 nm from the route, at the departure end · a VIP movement · today · ZOB
6/6656 ANOKA, MN, Monday, October 5, 2026 through Monday, October 19, 2026 Local 15 nm from the route, 558 nm along the route · security · until 19 October · ZMP

Daylight

Sunset at BKL 6:50 pm EDT (22:50 UTC), at BFI 6:27 pm PDT (01:27 UTC) (civil twilight ends 6:58 pm PDT (01:58 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 central Great Lakes · loop National Weather Service

Radar now, the upper Mississippi valley · loop National Weather Service

Radar now, the northern Rockies · 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: Burke Lakefront Airport, Boeing Fld/King County International.