Plan a flight · Sun 8:48 pm EDT (00:48 UTC)

Pittsburgh International to Boeing Fld/King County International PIT → BFI

1,841 nautical miles (2,119 statute miles) northwest on a straight line, true course 297°, about 306° magnetic at the departure end (variation 9W). At 120 knots that is 14 h 51 min at the quickest height in today's winds (4,500 ft, a 4-knot tailwind), arriving about 8:39 am PDT (15:39 UTC). Right now PIT is marginal VFR, wind from the north-northeast (030°) at 8 knots; BFI is VFR, wind variable 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: 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

SIGMET E17E: thunderstorms (a convective SIGMET) up to 31,000 ft, moving from the west at 15 knots, until 9:55 pm EDT (01:55 UTC). Near the route, at the departure end.

as issued

WSUS31 KKCI 112355
MKCE WST 112355
CONVECTIVE SIGMET 17E
VALID UNTIL 0155Z
PA MD VA NC WV OH KY
FROM 30WSW EWC-20E RIC-70NNE ILM-70W BKW-10ESE APE-30WSW EWC
AREA TS MOV FROM 28015KT. TOPS TO FL310.

AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the first 10 nm of the route.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 10 nm of the route.
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 route from 60 to 189 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). Near the route, 766 nm along the route.
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 975 to 1582 nm out.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 1065 to 1572 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1294 to 1632 nm out.
AIRMET ZULU 2C: moderate icing up to 14,000 ft. Over the route from 1493 to 1722 nm out.
AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 25,000 ft to 39,000 ft. Over the last 0 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 PIT.

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

A320 at 33,000 ft, 3 nm east, 8:36 pm EDT (00:36 UTC): moderate turbulence above 33,000 ft, remarks: zob. 249 nm along the route, 3 nm east of the line.
as filed, and in English
```
JXN UA /OV JXN280030/TM 0036/FL330/TP A320/TB OCNL MOD 330/RM ZOB
```
Report
a routine report filed through JXN
Where
30 nm west (280°) of JXN
Time
00:36 UTC
Height
at 33,000 ft
Aircraft
A320
Turbulence
occasional moderate at 33,000 ft
Remarks
zob
B737 climbing, 0 nm south, 7:03 pm EDT (23:03 UTC): a routine report with nothing remarked on. At the departure end, 0 nm south of the line.
as filed, and in English
```
PIT UA /OV PIT/TM 2303/FLDURC/TP B737/SK B028 T034
```
Report
a routine report filed through PIT
Where
over PIT
Time
23:03 UTC
Height
during the climb
Aircraft
B737
Sky
B028 T034
CRJ2 at 23,000 ft, 17 nm northeast, 6:54 pm EDT (22:54 UTC): light to moderate turbulence, remarks: zob. At the departure end, 17 nm northeast of the line.
as filed, and in English
```
PIT UA /OV EWC140020/TM 2254/FL230/TP CRJ2/TB LGT-MOD/RM ZOB
```
Report
a routine report filed through PIT
Where
20 nm southeast (140°) of EWC
Time
22:54 UTC
Height
at 23,000 ft
Aircraft
CRJ2
Turbulence
light to moderate
Remarks
zob
E75S descending, 0 nm south, 6:54 pm EDT (22:54 UTC): a routine report with nothing remarked on. At the departure end, 0 nm south of the line.
as filed, and in English
```
PIT UA /OV PIT/TM 2254/FLDURD/TP E75S/SK T036
```
Report
a routine report filed through PIT
Where
over PIT
Time
22:54 UTC
Height
during the descent
Aircraft
E75S
Sky
T036
AEST descending, 3 nm southwest, 6:36 pm EDT (22:36 UTC): remarks: bases 1,600 ft. At the departure end, 3 nm southwest of the line.
as filed, and in English
```
CAK UA /OV CAK/TM 2236/FLDURD/TP AEST/RM BASES 016
```
Report
a routine report filed through CAK
Where
over CAK
Time
22:36 UTC
Height
during the descent
Aircraft
AEST
Remarks
bases 1,600 ft
B38M descending, 16 nm northeast, 6:25 pm EDT (22:25 UTC): a routine report with nothing remarked on. 90 nm along the route, 16 nm northeast of the line.
as filed, and in English
```
CLE UA /OV CLE/TM 2225/FLDURD/TP B38M/SK B023
```
Report
a routine report filed through CLE
Where
over CLE
Time
22:25 UTC
Height
during the descent
Aircraft
B38M
Sky
B023
P28A descending, 20 nm southwest, 8:08 pm EDT (00:08 UTC): a broken layer from 2,200 ft to 2,500 ft. 159 nm along the route, 20 nm southwest of the line.
as filed, and in English
```
TOL UA /OV 1G0/TM 0008/FLDURD/TP P28A/SK BKN022 TOPS025
```
Report
a routine report filed through TOL
Where
over 1G0
Time
00:08 UTC
Height
during the descent
Aircraft
P28A
Sky
a broken layer from 2,200 ft, tops 2,500 ft
P28A descending, 20 nm southwest, 6:45 pm EDT (22:45 UTC): overcast above 1,400 ft. 159 nm along the route, 20 nm southwest of the line.
as filed, and in English
```
TOL UA /OV 1G0/TM 2245/FLDURD/TP P28A/SK OVC014 TOPSUNKN
```
Report
a routine report filed through TOL
Where
over 1G0
Time
22:45 UTC
Height
during the descent
Aircraft
P28A
Sky
overcast from 1,400 ft, tops unknown
A21N descending, 30 nm north, 8:22 pm EDT (00:22 UTC): overcast above 1,500 ft. 169 nm along the route, 30 nm north of the line.
as filed, and in English
```
DTW UA /OV DTW/TM 0022/FLDURD/TP A21N/SK OVC015
```
Report
a routine report filed through DTW
Where
over DTW
Time
00:22 UTC
Height
during the descent
Aircraft
A21N
Sky
overcast from 1,500 ft
A320 climbing, 13 nm southwest, 8:14 pm EDT (00:14 UTC): overcast. 169 nm along the route, 13 nm southwest of the line.
as filed, and in English
```
TOL UA /OV TOL/TM 0014/FLDURC/TP A320/SK B025 OVC T040
```
Report
a routine report filed through TOL
Where
over TOL
Time
00:14 UTC
Height
during the climb
Aircraft
A320
Sky
B025 overcast T040
CRJ9 descending, 30 nm north, 8:08 pm EDT (00:08 UTC): overcast above 1,100 ft, remarks: final runway 4L. 169 nm along the route, 30 nm north of the line.
as filed, and in English
```
DTW UA /OV DTW/TM 0008/FLDURD/TP CRJ9/SK OVC 011/RM FINAL RY 4L
```
Report
a routine report filed through DTW
Where
over DTW
Time
00:08 UTC
Height
during the descent
Aircraft
CRJ9
Sky
overcast from 1,100 ft
Remarks
final runway 4L
E75S descending, 30 nm north, 7:01 pm EDT (23:01 UTC): a routine report with nothing remarked on. 169 nm along the route, 30 nm north of the line.
as filed, and in English
```
DTW UA /OV RWY 3R/TM 2301/FLDURD/TP E75S/SK TOPS 020 BASES 010
```
Report
a routine report filed through DTW
Where
runway 3R
Time
23:01 UTC
Height
during the descent
Aircraft
E75S
Sky
tops 2,000 ft bases 1,000 ft
A320 descending, 13 nm southwest, 7:00 pm EDT (23:00 UTC): overcast from 1,600 ft to 3,500 ft, wind 350° at 9 knots. 169 nm along the route, 13 nm southwest of the line.
as filed, and in English
```
TOL UA /OV TOL/TM 2300/FLDURD/TP A320/SK OVC016 TOP035/WV 35009KTS AT 023
```
Report
a routine report filed through TOL
Where
over TOL
Time
23:00 UTC
Height
during the descent
Aircraft
A320
Sky
overcast from 1,600 ft, tops 3,500 ft
Wind
wind from 350° at 9 knots at at 2,300 ft
B712 at 300 ft, 30 nm north, 6:21 pm EDT (22:21 UTC): overcast, remarks: tops 4,000 ft bases 300 ft. 169 nm along the route, 30 nm north of the line.
as filed, and in English
```
DTW UA /OV DTW/TM 2221/FL003/TP B712/SK OVC/RM TOPS 040 BASES 003
```
Report
a routine report filed through DTW
Where
over DTW
Time
22:21 UTC
Height
at 300 ft
Aircraft
B712
Sky
overcast
Remarks
tops 4,000 ft bases 300 ft

16 more routine reports are on the map.

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 17 forecast points nearest it (AGC, CLE, FWA, MKG, GRB, LSE, MSP, AXN, ABR, DIK, MLS, BIL, 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	080° at 3 kt	−4 kt	2 °C	124 kt	14 h 51 min	8:39 am PDT (15:39 UTC)
6,500 ft	030° at 1 kt	−1 kt	9 °C	121 kt	15 h 13 min	9:01 am PDT (16:01 UTC)
8,500 ft	250° at 2 kt	+1 kt	6 °C	119 kt	15 h 28 min	9:16 am PDT (16:16 UTC)
10,500 ft	240° at 6 kt	+5 kt	2 °C	115 kt	16 h 01 min	9:49 am PDT (16:49 UTC)
12,500 ft	240° at 10 kt	+8 kt	-1 °C	112 kt	16 h 26 min	10:14 am PDT (17:14 UTC)
14,500 ft	250° at 13 kt	+11 kt	-5 °C	109 kt	16 h 53 min	10:41 am PDT (17:41 UTC)
16,500 ft	250° at 16 kt	+13 kt	-9 °C	107 kt	17 h 12 min	11:00 am PDT (18:00 UTC)
18,000 ft FL180	250° at 18 kt	+15 kt	-13 °C	105 kt	17 h 32 min	11:20 am PDT (18:20 UTC)
24,000 ft FL240	250° at 24 kt	+22 kt	-23 °C	98 kt	18 h 47 min	12:35 pm PDT (19:35 UTC)
30,000 ft FL300	250° at 32 kt	+29 kt	-36 °C	91 kt	20 h 14 min	2:02 pm PDT (21:02 UTC)
34,000 ft FL340	260° at 40 kt	+37 kt	-43 °C	83 kt	22 h 11 min	3:59 pm PDT (22:59 UTC)
39,000 ft FL390	270° at 51 kt	+50 kt	-49 °C	70 kt	26 h 18 min	8:06 pm PDT (03:06 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
AGC	used from 0 nm out; 41 nm from the line	140/12	350/10 12°	L/V 9°	L/V 3°	200/11 -11°	220/21 -22°	220/47 -33°	230/51 -39°	230/45 -48°
CLE	used from 50 nm out; 22 nm from the line	340/5	320/13 14°	300/12 8°	310/10 2°	310/14 -10°	340/14 -23°	320/27 -35°	260/28 -40°	250/36 -48°
FWA	used from 149 nm out; 83 nm from the line	350/9	350/24 15°	360/25 9°	360/29 4°	350/31 -10°	340/39 -22°	330/40 -37°	320/38 -43°	320/48 -48°
MKG	used from 249 nm out; 48 nm from the line	250/5	320/10 15°	310/19 9°	320/21 3°	310/23 -10°	330/37 -22°	330/51 -38°	320/44 -47°	300/60 -49°
GRB	used from 398 nm out; 70 nm from the line	240/24	260/18 16°	270/20 11°	290/14 4°	280/24 -9°	300/34 -21°	310/51 -38°	310/54 -48°	300/71 -51°
LSE	used from 448 nm out; 59 nm from the line	220/33	250/29 17°	250/15 9°	260/12 6°	280/21 -9°	280/33 -20°	300/43 -36°	310/56 -45°	300/79 -53°
MSP	used from 597 nm out; 18 nm from the line	200/28	240/30 19°	240/24 12°	240/17 5°	270/24 -10°	270/33 -20°	280/48 -35°	290/55 -45°	280/84 -54°
AXN	used from 697 nm out; 47 nm from the line	L/V	220/23 17°	230/24 12°	240/25 5°	260/32 -11°	260/40 -21°	270/50 -35°	270/57 -45°	270/81 -55°
ABR	used from 796 nm out; 33 nm from the line	030/24	220/5 16°	230/18 12°	230/32 5°	240/38 -10°	250/37 -20°	240/40 -35°	240/56 -44°	250/72 -52°
DIK	used from 945 nm out; 79 nm from the line		110/15 6°	200/17 5°	230/31 1°	240/47 -10°	240/52 -20°	230/52 -36°	240/57 -45°	250/67 -51°
MLS	used from 1095 nm out; 53 nm from the line		120/22 5°	170/18 4°	200/33 1°	230/49 -10°	230/58 -21°	220/54 -37°	230/64 -44°	250/74 -49°
BIL	used from 1244 nm out; 77 nm from the line		080/24	130/14 -1°	180/33 0°	210/43 -10°	220/58 -21°	200/55 -36°	220/75 -44°	240/83 -48°
GTF	used from 1294 nm out; 80 nm from the line		070/21	080/18 -6°	120/5 -5°	180/30 -14°	200/53 -24°	210/80 -38°	220/83 -44°	230/68 -46°
GPI	used from 1493 nm out; 50 nm from the line		060/19 -3°	110/11 -8°	130/6 -8°	200/40 -19°	190/58 -28°	200/101 -39°	220/73 -43°	230/41 -43°
GEG	used from 1592 nm out; 31 nm from the line		050/18 -2°	060/19 -8°	L/V -11°	160/11 -24°	190/17 -31°	200/19 -35°	220/14 -37°	250/11 -41°
YKM	used from 1742 nm out; 60 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 1791 nm out; 26 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
PIT Pittsburgh, PA	departure	marginal VFR Sky: overcast at 1,800 feet	from the north-northeast (030°) at 8 knots	10+ mi	1,800 ft	1,202 ft	7:51 pm EDT (23:51 UTC)
CAK Akron, OH	60 nm out, 3 nm southwest of the line, tower	IFR Sky: a broken layer at 700 feet, overcast at 1,900 feet	from the northeast (040°) at 5 knots	10+ mi	700 ft	1,225 ft	23:51 UTC
BTL Battle Creek, MI	249 nm out, 2 nm west of the line, tower	VFR Sky: a few clouds at 2,300 feet	from the east-southeast (120°) at 3 knots	10+ mi	none	951 ft	23:53 UTC
CMY Sparta, WI	508 nm out, 3 nm west of the line, tower	VFR	calm	10+ mi	none	839 ft	23:55 UTC
FCM Minneapolis, MN	637 nm out, 10 nm north of the line, tower	VFR	from the southeast (140°) at 5 knots	10+ mi	none	906 ft	23:53 UTC
VVV Ortonville, MN	766 nm out, 1 nm west of the line	IFR Sky: overcast at 800 feet	from the north-northwest (330°) at 9 knots, gusting to 14	10+ mi	800 ft	1,101 ft	00:35 UTC
BWW Bowman, ND	1055 nm out, 20 nm southwest of the line	low IFR Sky: overcast at 400 feet Weather: mist	from the east-northeast (060°) at 15 knots, gusting to 20	3 mi	400 ft	2,965 ft	23:35 UTC
BHK Baker, MT	1105 nm out, 17 nm south of the line	IFR Sky: overcast at 600 feet Weather: light rain, mist	from the east-northeast (070°) at 13 knots	6 mi	600 ft	2,980 ft	23:51 UTC
GTF Great Falls, MT	1393 nm out, 10 nm northwest of the line, tower	low IFR Sky: scattered clouds at 300 feet, overcast at 800 feet Weather: snow, freezing fog	from the north-northeast (030°) at 12 knots	0.5 mi	800 ft	3,680 ft	00:39 UTC
GEG Spokane, WA	1652 nm out, 5 nm northeast of the line, tower	VFR Sky: a broken layer at 5,500 feet, a broken layer at 7,500 feet, a broken layer at 10,000 feet	from the northeast (050°) at 14 knots	10+ mi	5,500 ft	2,385 ft	23:53 UTC
MWH Moses Lake, WA	1722 nm out, 22 nm south of the line, tower	VFR Sky: a broken layer at 10,000 feet	from the east-northeast (070°) at 14 knots	10+ mi	10,000 ft	1,188 ft	23:52 UTC
BFI Seattle, WA	destination	VFR	variable at 6 knots	10+ mi	none	21 ft	4:53 pm PDT (23:53 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, 8:39 am PDT (15:39 UTC)

Wind light and variable, visibility more than 6 miles, patches of fog, 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 PIT, the departure

From Sun 8:00 pm EDT (00:00 UTC): wind from the northeast at 6 knots, visibility more than 6 miles, overcast at 1,700 feet
From Mon 2:00 am EDT (06:00 UTC): wind light and variable, visibility 6 miles, mist, a broken layer at 800 feet, overcast at 1,200 feet
From Mon 10:00 am EDT (14:00 UTC): wind light and variable, visibility more than 6 miles, overcast at 1,200 feet
From Mon 2:00 pm EDT (18:00 UTC): wind from the west at 5 knots, visibility more than 6 miles, overcast at 2,200 feet
From Mon 4:00 pm EDT (20:00 UTC): wind from the west-southwest at 5 knots, visibility more than 6 miles, scattered clouds at 3,000 feet, a broken layer at 9,000 feet

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

6/8587 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local on the route, at the departure end · a VIP movement · today · ZOB
6/8829 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local 15 nm from the route, at the departure end · a VIP movement · today · ZOB

Daylight

Sunset at PIT 6:45 pm EDT (22:45 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 Northeast · loop National Weather Service

Radar now, the central Great Lakes · loop National Weather Service

Radar now, the upper Mississippi valley · 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: Pittsburgh International, Boeing Fld/King County International.